JP2016209848A - Organic material decomposition apparatus and organic material decomposition method - Google Patents

Abstract

An organic matter decomposing apparatus and an organic matter decomposing method capable of efficiently deodorizing liquid product manufacturing equipment. A supply pipe for supplying a cleaning liquid to a facility to be cleaned F, a recovery pipe, an ozone gas generating means, a mixing unit for mixing the cleaning liquid and the ozone gas, and a degassing for separating the cleaning liquid from each other. An organic substance decomposing apparatus 1 that includes an air part and that re-supplys the cleaning liquid that has been degassed and degassed to the equipment F to be cleaned. In the organic matter decomposition method, the cleaning liquid is supplied to the equipment to be cleaned F for cleaning, the equipment to be cleaned F is cleaned, the cleaning liquid from which the organic substances are eluted from the equipment to be cleaned F is recovered, and ozone gas is supplied to the recovered cleaning liquid. The process of decomposing the organic substance contained in the cleaning liquid, the step of degassing the cleaning liquid from which the organic substance has been decomposed, and the cleaning liquid that has been degassed and degassed while the organic substance has been decomposed are returned to the equipment F to be cleaned. A method for decomposing organic matter, comprising a supplying step. [Selection] Figure 1

Description

  The present invention relates to an organic matter decomposing apparatus and an organic matter decomposing method used for stationary cleaning of a liquid product manufacturing facility.

  Manufacturing equipment for liquid products including beverages includes equipment such as pipes, tanks, and pumps. Such a cleaning method for manufacturing equipment is roughly classified into disassembly cleaning (Cleaning Out Place; COP) and stationary cleaning (Cleaning In Place; CIP). In the disassembly cleaning, the manufacturing equipment is disassembled, and cleaning is performed mainly on hand washing for each part. On the other hand, in the stationary cleaning, the cleaning is performed by automatically passing the cleaning liquid through the manufacturing line without disassembling the manufacturing equipment.

  In-place cleaning is a cleaning method that does not involve disassembly of manufacturing equipment, so it is suitable for ensuring the reliability and safety of cleaning operations compared to disassembly cleaning, and it can also shorten the cleaning time. Yes. Therefore, as a cleaning method for manufacturing equipment for liquid products, stationary cleaning that contributes to improving the operating efficiency of the manufacturing equipment is the mainstream. In-place cleaning is generally performed by circulating and supplying a cleaning liquid to a production line by a stationary cleaning apparatus provided in a manufacturing facility.

  In stationary cleaning of liquid product manufacturing facilities, alkaline cleaning liquids for decomposing organic substances such as proteins and carbohydrates, acidic cleaning liquids for removing inorganic substances such as inorganic salts, surfactants and disinfectants are used. It is often done. Also, fresh water is often used for pre-cleaning and rinsing purposes. These cleaning liquids are heated to a hot water region or higher and then passed through a production line to improve cleaning efficiency and sterilization. Since the circulating supply of the cleaning liquid is performed for a long time, the total amount of the cleaning liquid and the amount of heat consumed for the heating have reached a level that cannot be neglected.

  Usually, seal members such as gaskets and packings are interposed in pipes, tanks, and connecting parts of equipment such as pumps provided in a liquid product manufacturing facility. When fragrance | flavor etc. are used in manufacture of a liquid product, it is known that the fragrance | flavor component contained in a fragrance | flavor will adhere to the surface of a sealing member, or osmose | permeate to the deep part of a sealing member. The flavoring of the aromatic component thus generated is remarkable in a seal member made of ethylene / propylene / diene rubber (EPDM), nitrile rubber (NBR), silicon rubber or the like.

  It is difficult to remove the fragrance component scented on the seal member in a short time even by alkali cleaning or acid cleaning. If a fragrance component remains in the seal member or the like, it continues to elute even after the product is switched on the production line, and shifts to another product to cause a problem of scent transfer. Conventionally, deodorization cleaning for the purpose of deodorizing a production line has been performed as a countermeasure for such a problem. Deodorizing cleaning is performed in conjunction with alkali cleaning and acid cleaning, and a large amount of hot water is consumed by performing deodorizing cleaning, and the time required for stationary cleaning is prolonged.

  Conventionally, a technique using ozone water for deodorizing and cleaning has been studied. For example, Patent Document 1 discloses a cleaning apparatus that cleans an object to be cleaned in a food manufacturing facility, an ozone generator that generates ozone for cleaning the object to be cleaned in the food manufacturing facility, and an ozone that is dissolved. A heating device for heating water, a mixer for preparing heated ozone mixed water by mixing ozone generated by the ozone generator and water heated by the heating device, and heating ozone mixing prepared by the mixer A cleaning apparatus including a pipe for supplying water to an object to be cleaned of the food production facility is disclosed (see claims 1 and 2). Examples of the object to be cleaned include food manufacturing equipment, a food manufacturing tank, or connection piping provided with a silicon rubber sealing material. Also, a cleaning method for cleaning an object to be cleaned in a food manufacturing facility, generating ozone for cleaning the object to be cleaned in the food manufacturing facility, heating water for dissolving ozone, and the generated ozone Prepare ozone-mixed water by mixing with heated water, and prepare food to be cleaned consisting of food manufacturing equipment, food manufacturing tank, or connecting pipe with silicon rubber sealant for the food manufacturing equipment A cleaning method is disclosed in which the aromatic component adhering to the sealing material is removed by cleaning with the ozone mixed water (see claim 6).

Japanese Patent No. 4919388

  In the technology disclosed in Patent Document 1, ozone mixed water is supplied to an object to be cleaned of a food manufacturing facility, and by cleaning a food manufacturing device, a food manufacturing tank, and a connecting pipe having a silicon rubber sealing material, The aromatic component adhering to the sealing material is removed. At this time, when heated ozone mixed water heated by a heating device is used, the aroma component adsorbed on the sealing material can be efficiently removed.

  However, in the method of supplying ozone mixed water to the equipment to be cleaned that is to be fixedly cleaned, ozone cannot sufficiently contribute to the decomposition of the aroma components. This is because the ozone supplied to the equipment to be cleaned decomposes early in the presence of moisture and does not easily reach the outlet side of the equipment to be cleaned. In general, from the viewpoint of increasing the decomposition rate of aromatic components by ozone, it is desirable that the temperature of the ozone solution is high. However, when the liquid temperature is high, ozone decomposes before reaching the presence of the fragrance component, and therefore hardly contributes to the decomposition of the fragrance component. Further, it is known that the solubility of ozone decreases as the liquid temperature increases. Therefore, even if an attempt is made to deodorize the entire equipment to be cleaned including the terminal side, it is difficult to decompose the aroma component with ozone in a state where both an appropriate decomposition rate and an appropriate dissolved concentration are achieved.

  Further, in the method of supplying the ozone-mixed water to the equipment to be cleaned, the ozone supplied into the equipment to be cleaned is decomposed into molecular oxygen having a low solubility, and bubbles are generated inside the pipe or the like. If a large amount of such bubbles accumulates, an air pocket is formed inside the piping or the like, and there is a possibility that a location where the cleaning liquid is difficult to reach locally occurs. That is, due to such a situation, the aroma component removability of the equipment to be cleaned is deteriorated.

  Further, in the method of supplying the ozone mixed water to the equipment to be cleaned, the supplied ozone and the aromatic component eluted from the seal member react exclusively in the equipment to be cleaned. In a to-be-cleaned facility in which the reaction atmosphere is not managed, the reaction efficiency between ozone and fragrance components is poor, and the efficiency of the chain reaction that starts when ozone self-decomposes becomes low. In particular, the hydroxyl radical generated by this chain reaction is not effectively used for the decomposition of the aromatic component.

  As described above, in the method of supplying the ozone-mixed water to the equipment to be cleaned, the deodorization efficiency by ozone hardly reaches the required level even though power is consumed for generating ozone. Therefore, it becomes necessary to continue the circulation supply of ozone mixed water for a long time until the fragrance component in the equipment to be cleaned is sufficiently decomposed. As a result, the time required for stationary cleaning becomes longer, and the amount of heat required for heating the ozone mixed water also increases. Moreover, since the fragrance component which was not decomposed | disassembled appropriately by ozone can be circulated and supplied to the to-be-cleaned equipment and re-scented, the motive power required for the production | generation of ozone will be wasted and it is not efficient.

  Then, an object of this invention is to provide the organic substance decomposition | disassembly apparatus and organic substance decomposition | disassembly method which can deodorize efficiently the manufacturing equipment of a liquid product.

  In order to solve the above problems, an organic matter decomposing apparatus according to the present invention includes a supply pipe that supplies a cleaning liquid to a facility to be cleaned, a recovery pipe that cleans the facility to be cleaned and collects the cleaning liquid from which the organic matter is eluted from the facility to be cleaned. A pipe, ozone gas generating means for generating ozone gas, a mixing unit for gas-liquid mixing the recovered cleaning liquid and the ozone gas, and a deaeration unit for degassing the cleaning liquid in which organic substances are decomposed by the ozone gas The cleaning liquid that has been degassed while the organic matter is decomposed is re-supplied to the equipment to be cleaned.

  Further, the organic matter decomposition method according to the present invention includes a step of supplying a cleaning liquid to the equipment to be cleaned and cleaning, and cleaning the equipment to be cleaned and recovering the cleaning liquid from which the organic matter is eluted from the equipment to be cleaned. In addition, ozone gas is gas-liquid mixed with the cleaning liquid, the organic substance contained in the cleaning liquid is decomposed, the cleaning liquid in which the organic substance is decomposed is degassed, and the organic substance is decomposed and degassed. And a step of resupplying the cleaning liquid to the equipment to be cleaned.

  ADVANTAGE OF THE INVENTION According to this invention, the organic substance decomposition | disassembly apparatus and organic substance decomposition | disassembly method which can deodorize efficiently the manufacturing equipment of a liquid product can be provided.

It is a figure which shows schematic structure of the organic substance decomposition | disassembly apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows schematic structure of the organic substance decomposition | disassembly apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows schematic structure of the organic substance decomposition | disassembly apparatus which concerns on 3rd Embodiment of this invention. It is a figure which shows schematic structure of the organic substance decomposition | disassembly apparatus which concerns on the modification of this invention.

[First Embodiment]
First, an organic matter decomposition apparatus and an organic matter decomposition method according to the first embodiment of the present invention will be described. In addition, about the structure which is common in the following each figure, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

FIG. 1 is a diagram showing a schematic configuration of an organic matter decomposing apparatus according to the first embodiment of the present invention.
As shown in FIG. 1, the organic matter decomposition apparatus 1 according to the first embodiment includes a recovery pipe 110, a supply pipe 120, an ozone gas generation means 10, and a treatment tank (mixing unit / deaeration unit) 20. Yes. The organic matter decomposing apparatus 1 is an apparatus that performs stationary cleaning of a manufacturing facility for liquid products such as beverages, and decomposes organic matter contained in a cleaning liquid collected from the manufacturing facility using ozone.

  As shown in FIG. 1, the organic matter decomposing apparatus 1 is attached to a liquid product manufacturing facility (cleaned facility F) to be subjected to stationary cleaning. Liquid products include non-food liquid products such as cosmetics, pharmaceuticals, quasi-drugs, and hygiene products, as well as beverages, liquid foods, fluid semi-solid foods, and the like. The equipment F to be cleaned includes, for example, pipes through which liquid materials such as liquid products, semi-finished products, and raw materials flow, tanks in which liquid materials are stored, and the like. And in the to-be-cleaned equipment F, the flow path (liquid to be cleaned p) of the liquid substance used as a manufacturing line is formed by connecting piping, a tank, etc.

  In the liquid material flow path (cleaned flow path p), all or part of various processes such as raw material preparation, extraction, heating, cooling, degassing, gas injection, sterilization, and filling are performed in the manufacture of liquid products. Implemented inline. For this reason, the flow path (cleaned flow path p) is provided with devices such as a pump, a valve, a heat exchanger, a measuring instrument, and a filter so as to be in contact with the liquid material to be handled. In the stationary cleaning, the cleaning object is cleaned by passing the cleaning liquid through the cleaning channel p of the cleaning facility F.

  As shown in FIG. 1, the switching valve V1 is connected to the inlet of the to-be-cleaned flow path p which the to-be-cleaned equipment F has via the pipe line. A circulation pump 70 and a heating device 80 are installed in this pipe line. One end of the liquid supply pipe 101 is connected to the switching valve V1. Moreover, the switching valve V2 is connected to the exit of the to-be-cleaned flow path p via the pipe line. One end of the drainage pipe 102 is connected to the switching valve V2. The circulation pump 70, the heating device 80, the liquid supply pipe 101, the drainage pipe 102, the switching valve V1 and the switching valve V2 may be independently provided integrally with the organic matter decomposition apparatus 1, or the organic matter decomposition apparatus. 1 may be provided separately from the cleaning equipment F or other stationary cleaning apparatus (unit). Moreover, the heating apparatus 80 may serve as the function of the heat sterilizer in a manufacturing process.

  The liquid supply pipe 101 forms a flow path for supplying a cleaning liquid to the equipment F to be cleaned. The other end of the liquid supply pipe 101 whose one end is connected to the switching valve V1 is normally branched into a plurality of pipes (not shown) and connected to a plurality of cleaning liquid supply sources. The supply of the cleaning liquid from each of the cleaning liquid supply sources is controlled to be switched at predetermined time intervals according to the fixed cleaning plan, and the fixed cleaning is performed. As a result, various cleaning liquids are sequentially supplied to the cleaning flow path p of the cleaning target facility F through the switching valve V1.

  For example, an alkaline cleaning liquid containing sodium hydroxide, sodium hypochlorite, a surfactant and the like is supplied to the equipment F to be cleaned, and an acidic cleaning liquid containing nitric acid, a surfactant and the like is supplied for the acid cleaning. Supplied. In addition, for sterilization, a cleaning liquid for sterilization such as sodium hypochlorite is supplied, and before rinsing performed before alkali cleaning or acid cleaning, or during rinsing between and after these cleanings, Supply of fresh water substantially free of salt and metals is performed.

  The circulation pump 70 pumps the supplied cleaning liquid and supplies the cleaning liquid to the equipment F to be cleaned. The heating device 80 heats the cleaning liquid supplied to the equipment F to be cleaned. The cleaning liquid pumped by the circulation pump 70 is heated to the hot water area or the hot water area by the heating device 80, and the generated high temperature cleaning liquid is passed through the equipment F to be cleaned. The cleaning liquid flows through the channel to be cleaned p of the facility to be cleaned F to clean the object to be cleaned, and is then discharged from the outlet of the channel to be cleaned p.

  The drainage pipe 102 forms a flow path for discharging the cleaning liquid that has cleaned the object to be cleaned. The other end of the drainage pipe 102 whose one end is connected to the switching valve V2 is connected to a cleaning liquid supply source (not shown). The cleaning liquid flowing through the cleaning flow path p is transferred to the cleaning liquid supply source through the drain pipe 102 and then circulated and supplied to the cleaning equipment F through the liquid supply pipe 101 again. The cleaning liquid that has been repeatedly supplied to the cleaning equipment F over a predetermined time to clean the object to be cleaned is discharged out of the system from the downstream of the drainage pipe 102 or the intermediate part of the channel p to be cleaned, and cooled as necessary. After being treated, it is drained.

  In a liquid product manufacturing facility (cleaned facility F), a fragrance may be used in manufacturing a liquid product. The fragrance contains various organic substances such as hydrocarbons, esters, ketones, aromatics, fatty acids, aldehydes, alcohols and ethers as fragrance components. As the aromatic component, compounds of various elemental compositions such as sulfur-containing compounds and nitrogen-containing compounds can be used in addition to hydrocarbon compounds such as terpene compounds. In addition, the types of interatomic bonds, the degree of volatility, and the like are diverse.

  On the other hand, sealing members such as gaskets and packings are usually interposed in connecting portions of equipment such as piping, tanks, and pumps provided in the manufacturing facility (cleaned facility F). Such a sealing member is generally made of ethylene / propylene / diene rubber (EPDM), nitrile rubber (NBR), silicon rubber or the like. The sealing member of such a material has the property that the fragrance component (organic substance) contained in the fragrance is easily scented.

  Therefore, when a liquid product or semi-finished product to which a fragrance is added is handled in the liquid flow path (cleaned flow path p) of the manufacturing equipment (cleaned equipment F), various aroma components are sealed. It adheres firmly to the surface of the member or penetrates to the deep part of the seal member. In this way, the aromatic component scented on the sealing member often remains in the deep part of the sealing member even after the alkaline cleaning liquid or acidic cleaning liquid is circulated and supplied to the equipment F to be cleaned.

  Therefore, deodorizing and cleaning for the purpose of deodorizing the fragrance component is performed on such a liquid product manufacturing facility (cleaned facility F). Specifically, the cleaning liquid is circulated between the organic matter decomposing apparatus 1 and the equipment to be cleaned F, so that the aromatic components perfume on the seal member in the channel to be cleaned p are eluted into the cleaning liquid. And the to-be-cleaned equipment F is deodorized by returning the washing | cleaning liquid which the fragrance component eluted to the organic substance decomposition | disassembly apparatus 1. FIG. Specifically, the deodorizing cleaning is performed by switching the switching valves V1 and V2 to close the liquid supply pipe 101 and the drain pipe 102, and operating the circulation pump 70 to remove the cleaning liquid from the organic matter decomposing apparatus 1 and the equipment F to be cleaned. By circulating at a constant flow rate between.

  The cleaning solution preferably used in the deodorizing cleaning is a cleaning solution in a warm water region of 50 ° C. or more and less than 60 ° C., or a cleaning solution in a hot water region of 60 ° C. or more. The liquid temperature of the cleaning liquid may be 80 ° C. or higher, or 90 ° C. or higher. The cleaning liquid is preferably fresh water substantially free of salt or metals, but may be tap water or the like. By passing a high-temperature cleaning liquid through the equipment F to be cleaned, the solubility of the fragrance component is increased and the diffusion rate of the fragrance component penetrating into the deep portion is improved, and the time for diffusing in the seal member is shortened. Therefore, the fragrance component permeating the seal member is easily eluted into the cleaning liquid, and efficient deodorization cleaning is performed without increasing the required time. Moreover, if it is high temperature fresh water or tap water, there will be little damage to a sealing member.

  The recovery pipe 110 forms a flow path for recovering (returning) the cleaning liquid from the equipment F to be cleaned. One end of the recovery pipe 110 is connected to the switching valve V2. Since the switching valve V2 is connected to the outlet of the cleaning flow path p of the cleaning target facility F via a pipe line, the cleaning target facility F is cleaned by the switching of the switching valve V2, and the fragrance is cleaned from the cleaning target facility F. The cleaning liquid from which the components (organic substances) are eluted is collected in the organic substance decomposition apparatus 1. At this time, the flow path on the drain pipe 102 side of the switching valve V2 is closed. On the other hand, the other end of the recovery pipe 110 is connected to the processing tank 20, and a flow path from the processing tank 20 to the supply pipe 120 is connected.

  The supply pipe 120 forms a flow path for supplying the cleaning liquid to the equipment F to be cleaned. One end of the supply pipe 120 is connected to the processing tank 20. On the other hand, the other end of the supply pipe 120 is connected to the switching valve V1. Since the switching valve V1 is connected to the inlet of the cleaning flow path p of the cleaning equipment F via a pipe line, the cleaning liquid is supplied from the organic substance decomposition apparatus 1 to the cleaning equipment F by switching the switching valve V1. Will be. At this time, the flow path on the liquid supply pipe 101 side of the switching valve V1 is closed. The cleaning liquid that has cleaned the equipment to be cleaned F is recovered through the recovery pipe 110 and then re-supplied to the equipment to be cleaned F through the supply pipe 120 and circulates.

  The concentration of the aroma component in the cleaning liquid gradually increases as the cleaning liquid is repeatedly supplied to the equipment F to be cleaned. As a result, the eluted fragrance component reattaches to the seal member, and the efficiency of deodorization of the fragrance component decreases. For this reason, in general, it is necessary to frequently replace the cleaning liquid being circulated. However, since the deodorizing cleaning must be stopped when the cleaning liquid is replaced, the time required for the stationary cleaning is increased. Moreover, the amount of water used is required for the replacement of the cleaning liquid, and reheating of the newly replaced cleaning liquid requires a large heating cost.

  Therefore, in the organic matter decomposing apparatus 1, an organic matter decomposing process is performed for decomposing the aroma component (organic matter) contained in the cleaning liquid recovered from the equipment F to be cleaned using ozone. The processing method performed in the organic matter decomposing apparatus 1 (the organic matter decomposing method according to the first embodiment) supplies the cleaning liquid to the equipment F to be cleaned and cleans the equipment F to be cleaned. A step of recovering the cleaning solution from which the organic matter has been dissolved, a step of gas-liquid mixing ozone gas with the recovered cleaning solution, decomposing the organic matter contained in the cleaning solution, a step of degassing the cleaning solution from which the organic matter has been decomposed, and an organic matter And a step of supplying again the cleaning liquid degassed to the equipment F to be cleaned.

  In this organic matter decomposition method, the gas-liquid mixing of ozone gas is performed particularly by aeration to the cleaning liquid temporarily retained in the treatment tank. Aroma components eluted in the circulating cleaning liquid are decomposed by gas-liquid mixing the cleaning liquid collected from the equipment to be cleaned F and the diffused ozone gas. And in a processing tank, after degassing the washing | cleaning liquid by which the aromatic component was decomposed | disassembled, deodorizing washing | cleaning is performed continuously by supplying again to the to-be-cleaned equipment F.

  As shown in FIG. 1, the ozone gas generation means 10 includes a compressor 11, an oxygen concentrator 12, an ozone generator 13, and a concentration meter 14. The ozone gas generating means 10 is a device that generates ozone gas containing ozone and supplies the ozone gas to the cleaning liquid recovered from the equipment F to be cleaned. Air is supplied to the compressor 11 included in the ozone gas generation means 10.

  The compressor 11 generates compressed air by compressing air. Then, the generated compressed air is introduced into the oxygen concentrator 12. The oxygen concentrator 12 is, for example, a PSA (pressure swing adsorption) method, and includes an adsorption tower filled with an adsorbent such as zeolite. The adsorbent has adsorbability with respect to nitrogen, moisture, etc., and removes nitrogen, moisture, etc. contained in compressed air pressurized to a predetermined pressure or higher.

  The oxygen concentrator 12 removes nitrogen, moisture, and the like from the compressed air introduced into the adsorption tower, and generates an oxygen enriched gas with an increased oxygen concentration. On the other hand, the adsorbent of the oxygen concentrator 12 desorbs adsorbed nitrogen, moisture and the like for air having a pressure lower than a predetermined pressure. Therefore, in the oxygen concentrator 12, the generation of the oxygen-enriched gas and the regeneration of the adsorption capacity of the adsorbent are repeated by repeating the pressurization and depressurization.

  The ozone generator 13 generates ozone by generating ozone in the oxygen-enriched gas. The ozone generation method in the ozone generator 13 can be an appropriate form such as a discharge type, an electrolysis type, or an ultraviolet type. However, a preferable form is a discharge type suitable for mass production of ozone. The discharge type ozone generator 13 includes, for example, an electrode pair covered with a dielectric. Oxygen-concentrated gas is introduced between the electrodes and an alternating voltage is applied, so that ozone gas is generated as silent discharge occurs.

Ozone gas is a hybrid gas containing ozone at a concentration of 230 g / m ³ or less, with the balance being mainly composed of oxygen. The ozone gas generated in the ozone generator 13 is supplied to the cleaning liquid collected from the equipment F to be cleaned. At this time, the concentration of the supplied ozone gas is measured by the densitometer 14. The organic matter decomposing apparatus 1 is operated so that, for example, the concentration of supplied ozone is kept constant with respect to the flow rate of the cleaning liquid. The ozone concentration of the ozone gas is preferably 40 g / m ³ or more and 210 g / m ³ or less and around 200 g / m ³ .

  The processing tank 20 is a sealed tank capable of retaining the cleaning liquid collected from the equipment F to be cleaned. In the treatment tank 20, the cleaning liquid that has cleaned the equipment F to be cleaned is recovered through the recovery pipe 110. Since the processing tank 20 has a larger volume than the recovery pipe 110 and the supply pipe 120, the recovered cleaning liquid is temporarily retained in the inner space of the processing tank 20. The treatment tank 20 is operated so as to maintain a constant liquid amount, and a gas phase mainly composed of oxygen or ozone is maintained together with the liquid phase of the staying cleaning liquid.

  As shown in FIG. 1, the treatment tank 20 includes an air diffuser 22 in the inner space. The air diffuser 22 has a porous structure that can discharge microbubbles. In addition, the ozone gas generating means 10 is connected to the air diffuser 22. Therefore, the ozone gas pressurized by the compressor 11 is diffused from the diffuser 22 into the treatment tank 20. That is, the ozone gas generated by the ozone gas generating means 10 is supplied in a form that is diffused into the cleaning liquid staying in the processing tank 20.

  The ozone gas may be diffused in any form of nanobubbles having a bubble diameter of less than about 1 μm, microbubbles having a bubble diameter of about 1 μm or more and less than 100 μm, and coarse bubbles having a bubble diameter of about 100 μm or more. On the other hand, ozone gas preferably has a bubble diameter of about 1000 μm or less. When the bubble diameter of ozone gas is made fine, the specific surface area is increased and the internal pressure of the bubbles is easily increased. Therefore, the solubility of ozone in the cleaning liquid can be improved. In addition, if the bubble diameter is larger than about 100 μm, the rising speed of the bubble is faster than that of microbubbles, so that the aromatic components and ozone that have volatilized in the bubbles from the cleaning liquid are decomposed and lost. Air bubbles can be quickly removed from the cleaning liquid.

  In the treatment tank 20, the cleaning liquid collected from the equipment to be cleaned F and the ozone gas supplied by the ozone gas generation means 10 are gas-liquid mixed. And the aromatic component (organic substance) contained in the washing | cleaning liquid is decomposed | disassembled by the ozone gas mixed gas-liquid. Specifically, a part of the ozone contained in the ozone gas dissolves in the cleaning liquid and decomposes the aromatic components directly in the liquid phase by oxidation, or reacts with hydroxide ions etc. in the presence of moisture to self-decompose. To do. Moreover, the remainder of ozone decomposes the aromatic component volatilized in the gas phase by direct oxidation, or self-decomposes in the gas phase to generate oxygen radicals together with molecular oxygen. Furthermore, triggered by the self-decomposition of ozone in the liquid phase and gas phase, various radical species and active oxygen species are generated, and these active species also contribute to the decomposition of the aromatic component.

  The rate of decomposition of the aroma component is affected by the oxidizing power of ozone and other active species. The oxidation-reduction potential of ozone is about 2.07V. Therefore, carbon-hydrogen (C—H) bonds, double bonds, aromatic rings, ether bonds, etc., which have relatively low binding energy, are cleaved by direct oxidation with ozone, and the aroma components are rapidly decomposed. become. On the other hand, the decomposition of an ester bond or the like having a relatively large binding energy is difficult to proceed by direct oxidation with ozone.

On the other hand, in the chain reaction initiated by the self-decomposition of ozone, radical species having stronger oxidizing power can be generated. For example, oxygen radicals (O) may be generated due to decomposition of ozone in the gas phase. The redox potential of the oxygen radical is about 2.42V. In addition, ozone self-decomposes in the presence of moisture, and hydroxyl radicals (OH) can be generated through the generation of hydrotrioxyl radicals (HO ₃ ). The oxidation-reduction potential of the hydroxyl radical is particularly high at about 2.81V. According to these radical species, it is possible to cleave a bond having a relatively large bond energy such as an ester bond.

  As shown in FIG. 1, the processing tank 20 has an exhaust hole 140 for exhausting an internal gas. A mist separator 26 is installed in the exhaust hole 140. The mist separator 26 collects droplets of the cleaning liquid contained in the discharged gas and functions to prevent the cleaning liquid from being discharged together with the gas. Further, the exhaust treatment device 60 is connected to the exhaust hole 140 via a pipe line. A suction pump 62 is provided on the exhaust side of the exhaust treatment device 60.

  In the treatment tank 20, degassing of the cleaning liquid in which the aromatic component (organic substance) is decomposed by the ozone gas is performed together with the gas-liquid mixing of the cleaning liquid and the ozone gas. The suction pump 62 sucks the gas in the inner space of the processing tank 20 into the exhaust processing device 60 and maintains the gas phase formed in the inner space of the processing tank 20 in a reduced pressure atmosphere. Therefore, the cleaning liquid temporarily staying in the treatment tank 20 is gas-liquid separated, unreacted ozone, oxygen generated by the self-decomposition of ozone, undecomposed aroma components, and various gas components generated by the decomposition of the aroma components. Etc. are efficiently degassed. Then, the degassed cleaning liquid is supplied again to the equipment to be cleaned F through the supply pipe 120. On the other hand, the gas separated from the cleaning liquid is sent to the exhaust treatment device 60.

  The exhaust treatment device 60 performs detoxification treatment of ozone that can be contained in the gas that has been gas-liquid separated from the cleaning liquid. The exhaust treatment device 60 is configured by, for example, a cooler, an ozonolysis device, and the like arranged in series. The cooler removes moisture contained in the exhausted gas and returns it to the treatment tank 20, and the ozone decomposer decomposes ozone contained in the exhausted gas into oxygen molecules using an ozone decomposition catalyst. Prevent unintentional release. Thereafter, the gas rendered harmless in the exhaust treatment device 60 is exhausted out of the system through the suction pump 62.

  In addition, although the processing tank 20 is made into the container which consists of one chamber in FIG. 1, it is good also as a container which consists of several chambers divided by the bypass wall, the bypass plate, the baffle wall, or the baffle plate. The bypass wall and the bypass plate are provided so as to cover only a part of the horizontal section in the interior of the processing tank 20 and to divert the flow through the alternately provided openings. On the other hand, the baffle walls and the baffle plates are provided so as to cover the entire horizontal cross section of the inner space and attenuate the flow through a plurality of openings provided therethrough. Further, the processing tank 20 may be of a countercurrent type in which the downward flow of the cleaning liquid from the outlet of the recovery pipe 110 to the inlet of the supply pipe 120 and the rising of bubbles of ozone gas from the air diffuser 22 face each other in the inner space. Alternatively, a parallel flow type in which the upward flow of the cleaning liquid and the rising of the bubbles of ozone gas are parallel may be employed. Furthermore, you may use a countercurrent type and a parallel flow type together about several chambers.

  Moreover, the processing tank 20 is good also as a form which directly connected the inner space and the cleaning liquid supply source not shown through valves. It is possible to supply fresh water or tap water directly to the inside of the treatment tank 20 and start circulation of the cleaning liquid with the equipment F to be cleaned, or rinse when the deodorizing cleaning is completed. Further, the treatment tank 20 may be supplied with fresh water or tap water whose pH is adjusted in order to manage the reaction by ozone.

  Moreover, the processing tank 20 may be provided with a temperature adjusting means for adjusting the temperature of the cleaning liquid staying in the inner space. The solubility and decomposition reaction rate of ozone mixed in the treatment tank 20 depend on the temperature of the cleaning liquid. On the other hand, the temperature of the cleaning liquid that has flowed through the equipment to be cleaned F and cleaned the channel to be cleaned p may deviate from the appropriate temperature for gas-liquid mixing. By appropriately adjusting the temperature of the cleaning liquid deviating from the appropriate temperature by the temperature adjusting means, it is possible to improve the reaction between ozone and the aromatic component and the efficiency of ozone self-decomposition. Further, the treatment tank 20 may be provided with a stirring means in order to promote gas-liquid mixing of the cleaning liquid and ozone gas. As the stirring means, an appropriate device such as a mechanical stirring device that stirs with a stirring blade or a fluid stirring device that stirs with a liquid flow can be used.

  According to the organic substance decomposing apparatus 1 described above, a cleaning solution in a hot water area or a hot water area suitable for elution of an aroma component is circulated to the equipment to be cleaned F, whereby the aroma component adhering to or permeating the object to be cleaned is efficiently removed. Can be eluted. At this time, a cleaning liquid that does not substantially contain ozone is supplied to the equipment F to be cleaned. Normally, ozone mixed in the cleaning liquid rapidly self-decomposes, so the decomposition of the aromatic components by ozone ends in a short time immediately after the cleaning liquid and ozone gas are mixed, and the cleaning liquid flows through the equipment to be cleaned. It is hard to last until it is finished. Therefore, even if ozone is introduced into the equipment F to be cleaned, the residual amount of undecomposed aroma components is large, and re-fragrance is likely to occur due to the circulation supply of the cleaning liquid.

  On the other hand, according to the organic matter decomposing apparatus 1, the aroma component efficiently eluted in the warm water or hot water cleaning liquid can be decomposed by ozone outside the equipment F to be cleaned. It is possible to more appropriately manage the reaction conditions outside the equipment F to be cleaned. In addition, by supplying ozone, which is easily decomposed at an early stage in a high temperature range, to the treatment tank 20, it is possible to immediately put it in the presence of an aroma component. Therefore, according to the organic substance decomposition | disassembly apparatus 1, most of the produced | generated ozone and the various active species produced by the self-decomposition of ozone can be made to react with an aroma component rapidly. As a result, the utilization factor of ozone is increased, the aroma components are reliably decomposed, and the power required for generating ozone is not wasted. Specifically, it is possible to deodorize the extremely low concentration organic substance to be decomposed contained in the cleaning liquid at a concentration of 300 ppb or less, and the concentration of the organic substance to be decomposed can be reduced to about 0.1 ppb or less. . Further, since the cleaning liquid containing the fragrance component is not re-supplied to the equipment F to be cleaned, re-scenting to the seal member or the like is prevented. The time required for deodorizing and cleaning is shortened by efficiently decomposing aromatic components and preventing re-scenting, and the frequency of cleaning liquid replacement and the amount of heat required for heating the cleaning liquid are also reduced.

  In addition, according to the organic matter decomposing apparatus 1, the cleaning liquid degassed by the gas-liquid separation in the processing tank 20 is supplied again to the equipment F to be cleaned. For this reason, the ozone gas supplied into the equipment to be cleaned hardly generates bubbles, and it is difficult to form an air pocket in the equipment to be cleaned. Therefore, it is possible to reliably deodorize and clean the entire area of the flow path to be cleaned without causing a portion where the cleaning liquid does not easily reach due to the presence of the air pool. Also, since ozone is less likely to stay in the equipment to be cleaned, deterioration of the object to be cleaned by ozone can be prevented, and ozone detoxification can be simplified when discharging the cleaning liquid out of the system. It has become. Therefore, according to the organic substance decomposing apparatus and the organic substance decomposing method according to the present embodiment, it is possible to efficiently deodorize the production equipment for liquid products by reliably decomposing aromatic components by ozone and gas-liquid separation of the cleaning liquid.

  In addition, in the organic matter decomposing apparatus 1, since a part of the undecomposed aroma component is actively volatilized and degassed by gas-liquid separation, the deodorizing cleaning is performed as compared with the case of deodorizing only by decomposing with ozone. Efficiency is even higher. Further, in the organic matter decomposing apparatus 1, since the cleaning liquid in the hot water area or the hot water area that substantially does not contain ozone is circulated and supplied to the equipment to be cleaned F, the heating apparatus 80 does not need to deal with ozone dissipation. It is advantageous in that an appropriate heating principle can be adopted such as a heat exchanger, an electric heating device, a direct heating device that performs steam heating with gas-liquid contact, and the like.

  Moreover, according to the organic substance decomposition | disassembly apparatus 1, the processing tank 20 which retains a washing | cleaning liquid is provided, and ozone gas is diffused and supplied to the washing | cleaning liquid which has accumulated in the processing tank 20. FIG. Therefore, the fragrance component contained in the cleaning liquid volatilizes in the bubbles of ozone gas and reacts with ozone in the gas phase, or reacts with ozone at the gas-liquid interface where the water vapor density formed by the bubbles of ozone gas is high. can do. As a result, a large amount of hydroxyl radicals having high oxidizing power are generated near the gas-liquid interface, and the lifetime is maintained near the gas phase, so that the aromatic component can be efficiently decomposed.

[Second Embodiment]
Next, an organic matter decomposition apparatus and an organic matter decomposition method according to a second embodiment of the present invention will be described.

FIG. 2 is a diagram showing a schematic configuration of an organic matter decomposing apparatus according to the second embodiment of the present invention.
As shown in FIG. 2, the organic matter decomposing apparatus 2 according to the second embodiment includes a recovery pipe 110, a supply pipe 120, an ozone gas generation means 10, an ejector 20A, a reaction pipe (mixing unit) 130, a degassing unit. The apparatus (deaeration part) 50 is provided. In the same way as the organic matter decomposition apparatus 1, the organic matter decomposition apparatus 2 performs stationary cleaning of manufacturing equipment for liquid products such as beverages, and decomposes organic substances contained in the cleaning liquid recovered from the manufacturing equipment using ozone. It is a processing device.

  In the organic matter decomposing apparatus 2, an organic matter decomposing process for decomposing the aromatic component (organic matter) contained in the cleaning liquid collected from the equipment F to be cleaned using ozone is performed. The processing method performed in the organic matter decomposing apparatus 2 (organic substance decomposing method according to the second embodiment) is the same as the processing method in the organic matter decomposing apparatus 1, in which the gas-liquid mixture of ozone gas is sucked into the cleaning liquid that has been made negative pressure by the ejector 20A. It is something that is done by. In addition, the degassing apparatus 50 performs gas-liquid separation of the cleaning liquid in which the organic matter is decomposed.

  The ejector 20A includes a nozzle that is reduced in diameter in the direction in which the cleaning liquid flows, a diffuser that is increased in diameter in the direction in which the cleaning liquid flows, and an intake port that is open to the nozzle. In the ejector 20A, the cleaning liquid recovered from the equipment to be cleaned F through the recovery pipe 110 is introduced into a nozzle whose pipe line is narrowed, whereby the flow velocity is increased and the negative pressure is set. Therefore, the ozone gas generated by the ozone gas generation means 10 is supplied to the cleaning liquid that has been made a negative pressure by the ejector 20A in the form of being sucked from the intake port. In the diffuser of the ejector 20A, the flow rate of the cleaning liquid is reduced and the pressure is increased. Then, the cleaning liquid mixed with ozone gas is transferred to the reaction tube 130.

  The reaction tube 130 is a tubular reactor that holds the pressurized ozone gas and the cleaning liquid in a pressurized state. One end of the reaction tube 130 is connected to the ejector 20A. On the other hand, the other end of the reaction tube 130 is connected to the deaeration device 50. Note that a throttle valve, an orifice, a perforated plate, or the like may be provided on the terminal side of the reaction tube 130.

  In the reaction tube 130, the solubility of ozone gas in the cleaning liquid is increased by gas-liquid mixing of the cleaning liquid collected from the equipment F to be cleaned and the ozone gas generated by the ozone gas generating means 10. Then, the ozone gas efficiently dissolved in the cleaning liquid decomposes the aromatic components (organic substances) eluted from the object to be cleaned into the cleaning liquid. Specifically, the ozone contained in the ozone gas dissolves in the cleaning liquid and decomposes the aromatic component directly in the liquid phase by oxidation, or reacts with hydroxide ions etc. in the presence of moisture and self-decomposes. . Moreover, the remainder of ozone decomposes the aromatic component volatilized in the gas phase by direct oxidation, or self-decomposes in the gas phase to generate oxygen radicals together with molecular oxygen. Furthermore, triggered by the self-decomposition of ozone in the liquid phase and gas phase, various radical species and active oxygen species are generated, and these active species also contribute to the decomposition of the aromatic component. The residence time of the cleaning liquid in the reaction tube 130 is maintained at a specified time required for decomposition of the aroma component depending on the return amount of the cleaning liquid and the pipe length.

  The deaerator 50 performs gas-liquid separation of the cleaning liquid in which the organic matter is decomposed. The deaeration device 50 is configured by, for example, a vacuum deaeration device including a gas-liquid separation membrane of an appropriate form such as a membrane type or a hollow fiber type. One end of a supply pipe 120 is connected to the primary side of the gas-liquid separation membrane, and the exhaust treatment device 60 is connected to the secondary side via a pipe line. A suction pump 62 is provided on the exhaust side of the exhaust treatment device 60.

  The cleaning liquid is passed through the primary side of the gas-liquid separation membrane provided in the deaeration device 50 by the circulation pump 70. On the other hand, the suction side of the gas-liquid separation membrane is evacuated by the suction pump 62. Therefore, the circulating cleaning liquid is gas-liquid separated by cross-flow filtration, and gas components generated by decomposition of unreacted ozone, oxygen generated by self-decomposition of ozone, undecomposed aroma components, aroma components, etc. Etc. are degassed. Then, the gas-liquid separated cleaning liquid is supplied again to the equipment F to be cleaned through the supply pipe 120. On the other hand, the gas separated and removed from the cleaning liquid is sent to the exhaust treatment device 60.

  The deaeration device 50 is replaced with a heating deaeration device that performs gas-liquid separation by boiling, a centrifugal deaeration device that performs gas-liquid separation on the principle of centrifugation, and an ultrasonic wave transmitted by ultrasonic waves, instead of a vacuum degassing device. You may comprise by the degassing apparatus, the gas-liquid separation apparatus using a tank, etc. Further, an apparatus in which these gas-liquid separation principles are combined may be used. Other configurations in the organic matter decomposition apparatus 1 are the same as those in the organic matter decomposition apparatus 1.

  According to the organic matter decomposing apparatus 2 described above, as in the case of the organic substance decomposing apparatus 1 described above, the aroma component efficiently eluted in the washing liquid in the hot water area or the hot water area is decomposed outside the equipment F to be cleaned by ozone. Can do. Moreover, according to the organic matter decomposing apparatus 2, the cleaning liquid degassed by the gas-liquid separation can be supplied again to the equipment F to be cleaned. Therefore, according to the organic substance decomposing apparatus and the organic substance decomposing method according to the present embodiment, it is possible to efficiently deodorize the production equipment for liquid products by reliably decomposing aromatic components by ozone and gas-liquid separation of the cleaning liquid. In addition, a part of the undecomposed aroma component is also volatilized and degassed actively by gas-liquid separation, so that the efficiency of deodorization cleaning is further increased. In the heating device 80, an appropriate heating principle is used. This is advantageous in that it can be adopted.

  Further, according to the organic matter decomposing apparatus 2, the cleaning liquid and the ozone gas are gas-liquid mixed by the ejector 20A. Since the ejector 20A sucks ozone gas into the cleaning liquid having a negative pressure, bubbles of the supplied ozone gas are refined and gas-liquid mixed, so that the ozone gas can be efficiently dissolved. Further, the ejector 20A is relatively small, and it is relatively easy to route connected pipes. Furthermore, the ejector 20A does not require power for supplying ozone gas to the cleaning liquid. Therefore, the organic matter decomposing apparatus 2 has an advantage that it is suitable for space saving and has a wide degree of freedom in apparatus design.

  Further, according to the organic matter decomposing apparatus 2, the circulating cleaning liquid is reliably and constantly separated in the degassing apparatus 50 including a vacuum degassing apparatus equipped with a gas-liquid separation membrane. Therefore, the ozone gas supplied into the equipment to be cleaned is advantageous in that it is less likely to generate bubbles and the possibility of forming air pockets is extremely low. In addition, in the organic matter decomposing apparatus 2, since a part of the undecomposed aroma component is also volatilized and degassed positively by gas-liquid separation, compared with the case of deodorizing only by decomposing with ozone, deodorizing cleaning is performed. Efficiency is even higher.

  Further, according to the organic matter decomposing apparatus 2, an inline-type flow path can be formed by the ejector 20 </ b> A, the deaeration device 50, and the like from the outlet of the recovery pipe 110 to the inlet of the supply pipe 120. The cleaning liquid flowing through the flow path can be pumped only by the circulation pump 70. Therefore, maintenance and cleaning of the organic matter decomposing apparatus 2 itself can be simplified, and the usability as an apparatus becomes excellent.

[Third Embodiment]
Next, an organic matter decomposition apparatus and an organic matter decomposition method according to a third embodiment of the present invention will be described.

FIG. 3 is a diagram showing a schematic configuration of an organic matter decomposing apparatus according to the third embodiment of the present invention.
As shown in FIG. 3, the organic matter decomposing apparatus 3 according to the third embodiment includes a recovery pipe 110, a supply pipe 120, an ozone gas generation means 10, a gas-liquid mixing pump 20B, a reaction pipe (mixing unit) 130, And a deaeration device (a deaeration unit) 50. This organic matter decomposing apparatus 3, like the organic substance decomposing apparatus 1, cleans the manufacturing equipment for liquid products such as beverages, and decomposes organic substances contained in the cleaning liquid collected from the manufacturing equipment using ozone. It is a processing device.

  In the organic matter decomposing apparatus 3, an organic matter decomposing process for decomposing the aroma component (organic matter) contained in the cleaning liquid collected from the equipment F to be cleaned using ozone is performed. The processing method performed in the organic matter decomposing apparatus 3 (organic matter decomposing method according to the third embodiment) is the same as the processing method in the organic matter decomposing apparatus 1, in which ozone gas gas-liquid mixing is changed into a cleaning liquid that is swirled by a gas-liquid mixing pump. This is what is done for them. In addition, gas-liquid separation of the cleaning liquid in which the organic matter is decomposed is performed in a deaeration device.

  The gas-liquid mixing pump 20B is a pump that pumps liquid and gas and pressurizes the gas-liquid two-phase flow. The gas-liquid mixing pump 20B pumps up the ozone gas generated by the ozone gas generation means 10 and the cleaning liquid recovered from the equipment to be cleaned F through the recovery pipe 110, respectively. The gas-liquid mixing pump 20B includes a cylindrical casing and an impeller housed in the casing. In the mixing pump 20B, ozone gas is supplied to the cleaning liquid that has been swirled by the rotation of the impeller. In the gas-liquid mixing pump 20B, the ozone gas and the cleaning liquid are mixed by the vortex. Then, the cleaning liquid mixed with ozone gas is transferred to the reaction tube 130.

  The reaction tube 130 is a tubular reactor that holds the pressurized ozone gas and the cleaning liquid in a pressurized state. One end of the reaction tube 130 is connected to the gas-liquid mixing pump 20B. On the other hand, the other end of the reaction tube 130 is connected to the deaeration device 50. Note that a throttle valve, an orifice, a perforated plate, or the like may be provided on the terminal side of the reaction tube 130. The residence time of the cleaning liquid in the reaction tube 130 is maintained at a specified time required for decomposition of the aroma component depending on the return amount of the cleaning liquid and the pipe length. Then, the cleaning liquid in which the organic matter is decomposed is transferred to the deaeration device 50. Other configurations in the organic matter decomposition apparatus 3 are the same as those in the organic matter decomposition apparatus 2.

  According to the organic matter decomposing apparatus 3 described above, as in the case of the organic substance decomposing apparatus 1 described above, the aroma component efficiently eluted in the washing liquid in the hot water area or the hot water area is decomposed outside the equipment F to be cleaned by ozone. Can do. Moreover, according to the organic substance decomposition | disassembly apparatus 3, the washing | cleaning liquid deaerated by gas-liquid separation can be re-supplied to the to-be-cleaned equipment F. FIG. Therefore, according to the organic substance decomposing apparatus and the organic substance decomposing method according to the present embodiment, it is possible to efficiently deodorize the production equipment for liquid products by reliably decomposing aromatic components by ozone and gas-liquid separation of the cleaning liquid. In addition, a part of the undecomposed aroma component is also volatilized and degassed actively by gas-liquid separation, so that the efficiency of deodorization cleaning is further increased. In the heating device 80, an appropriate heating principle is used. This is advantageous in that it can be adopted.

  Further, according to the organic matter decomposition apparatus 3, the cleaning liquid and the ozone gas are gas-liquid mixed by the gas-liquid mixing pump 20B. The gas-liquid mixing pump 20B has relatively excellent performance in terms of both the pumping ability of the cleaning liquid and the stirring force of the cleaning liquid and ozone gas. Therefore, the organic substance decomposing apparatus 3 is suitable for circulating a large volume of cleaning liquid or a high flow rate cleaning liquid between the equipment to be cleaned F, and suitable for deodorizing and cleaning large-scale manufacturing equipment (the equipment to be cleaned F). Can be used.

  In addition, according to the organic matter decomposing apparatus 3, an in-line type flow path is provided from the outlet of the recovery pipe 110 to the inlet of the supply pipe 120 by the gas-liquid mixing pump 20 </ b> B and a vacuum degassing apparatus equipped with a gas-liquid separation membrane. Can be formed. The cleaning liquid flowing through the flow path can be pumped by the gas-liquid mixing pump 20B and the circulation pump 70. Therefore, the head of the cleaning liquid can be earned, and there is an advantage that the degree of freedom of the piping and the operating time of the circulation pump 70 are expanded.

[Modification]
Next, an organic matter decomposing apparatus and an organic matter decomposing method according to a modification of the present invention will be described.

FIG. 4 is a diagram showing a schematic configuration of an organic matter decomposition apparatus according to a modification of the present invention.
As shown in FIG. 4, the organic matter decomposing apparatus 4 according to the modification includes an ultraviolet irradiation unit 40 at the rear stage of the ejector 20 </ b> A and the front stage of the deaeration apparatus 50. The organic matter decomposing apparatus 4 has a configuration in which an ultraviolet irradiation means 40 is added to the organic matter decomposing apparatus 2, and other configurations are the same as those in the organic substance decomposing apparatus 2.

  In the organic matter decomposing apparatus 4, an organic matter decomposing process for decomposing the aroma component (organic matter) contained in the cleaning liquid collected from the equipment F to be cleaned using ozone is performed. The processing method performed in the organic matter decomposing apparatus 4 (organic matter decomposing method according to the modified example) is a processing method in the organic matter decomposing apparatus 1 in which the cleaning liquid supplied with ozone gas is irradiated with ultraviolet rays to decompose organic substances. It is.

  The ultraviolet irradiation means 40 includes an ultraviolet tower 41 and an ultraviolet light source 42. The ultraviolet tower 41 is a container-like reaction tower having a hollow structure, and has an inlet and an outlet through which the cleaning liquid can flow. An ejector 20A is connected to the entrance of the ultraviolet tower 41 via a conduit, and a deaerator 50 is connected to the exit via the conduit. An ultraviolet light source 42 that emits ultraviolet rays is supported in the interior of the ultraviolet tower 41.

  The ultraviolet light source 42 is a long bar-shaped low-pressure mercury lamp in FIG. The low-pressure mercury lamp is installed between the inlet of the cleaning liquid provided on one end side in the longitudinal direction of the ultraviolet tower 41 and the outlet of the cleaning liquid provided on the other end side. The irradiation time of ultraviolet rays is secured. However, the form, the number of installations, and the arrangement of the ultraviolet light source 42 are not particularly limited, and may be a light emitting diode or the like, or a plurality of them may be installed, or the ultraviolet light tower 41 may face the inner sky. You may arrange | position to the wall part.

  The ultraviolet irradiation means 40 irradiates the cleaning liquid supplied with ozone gas by gas-liquid mixing with ultraviolet rays. In other words, ozone molecules and water molecules contained in ozone gas and gas-liquid cleaning liquids are excited with ultraviolet rays to promote ozone self-decomposition and advanced oxidation process (AOP) that promotes radicalization of water molecules. )I do. In detail, the self-decomposition of ozone and a chain reaction triggered by this progress by ultraviolet rays having a wavelength of around 253.7 nm. Therefore, a large amount of hydroxyl radicals are generated along with the chain reaction. Further, when ultraviolet rays having a wavelength of around 185 nm are used, the water molecules contained in the cleaning liquid are radicalized, so that hydroxyl radicals can be directly generated.

  According to the organic matter decomposing apparatus and the organic matter decomposing method according to the above-described modification, the aromatic component is efficiently decomposed by the accelerated oxidation treatment by the irradiation of ultraviolet rays, and the high-energy bond is obtained by the contribution of a large amount of generated hydroxyl radicals. Decomposition of most of the fragrance components including the compound having the can proceed promptly. Moreover, since the self-decomposition of ozone is promoted by the irradiation of ultraviolet rays, the excess ozone concentration after the decomposition of the aroma component is reduced. As a result, the cleaning liquid that is re-supplied to the equipment F to be cleaned through the supply pipe 120 is substantially free of ozone, preventing a reduction in the efficiency of deodorizing cleaning due to air accumulation and the need for ozone detoxification treatment. Can also be substantially eliminated.

  In addition, according to the organic matter decomposing apparatus and the organic matter decomposing method according to the modified example, the reaction rate of the self-decomposition of ozone even in the cleaning liquid whose liquid temperature is lowered in the process of flowing through the cleaning channel p of the cleaning target facility F Can be maintained by ultraviolet irradiation. The configurations of the organic matter decomposing apparatus and the organic matter decomposing method according to the modification can be applied to any of the above-described embodiments.

DESCRIPTION OF SYMBOLS 1 Organic substance decomposition apparatus 2 Organic substance decomposition apparatus 3 Organic substance decomposition apparatus 4 Organic substance decomposition apparatus 10 Ozone gas production | generation means 11 Compressor 12 Oxygen concentrator 13 Ozone generator 14 Densitometer 20 Treatment tank (mixing part / deaeration part)
20A Ejector 20B Gas-liquid mixing pump 40 Ultraviolet reaction tower 50 Deaeration device (deaeration part)
60 Exhaust treatment device 70 Circulating pump 80 Heating device 101 Supply pipe 102 Drain pipe 110 Supply pipe 120 Recovery pipe 130 Reaction pipe (mixing section)
F Equipment to be cleaned p Channel to be cleaned

In order to solve the above problems, an organic matter decomposing apparatus according to the present invention cleans a facility to be cleaned, which is a manufacturing facility provided with a pipe through which a liquid material flows and a seal member interposed in a connecting portion of the pipe. It is organic decomposition apparatus, wherein a supply pipe for supplying a cleaning liquid to the object to be cleaned equipment when cleaning the cleaning target equipment, the washing to be cleaned equipment to recover the cleaning liquid organic matter eluted from the object to be cleaned facilities A recovery pipe, ozone gas generating means for generating ozone gas, a mixing section for gas-liquid mixing the recovered cleaning liquid and the ozone gas, a degassing section for degassing the cleaning liquid in which organic substances are decomposed by the ozone gas , and a heating means for heating the deaerated washing liquid with organic matter is decomposed into more than 50 ° C., characterized by resupplying the heated the cleaning solution to the object to be cleaned facility.

In addition, the organic matter decomposition method according to the present invention supplies a cleaning liquid to a facility to be cleaned, which is a manufacturing facility provided with a pipe through which a liquid material flows and a seal member interposed in a connecting portion of the pipe, and performs cleaning. And a step of cleaning the equipment to be cleaned and recovering the cleaning liquid from which the organic substances are eluted from the equipment to be cleaned, and gas-liquid mixing ozone gas into the recovered cleaning liquid to decompose the organic substances contained in the cleaning liquid. A step of degassing the cleaning solution in which the organic matter has been decomposed , a step of heating the cleaning solution in which the organic matter has been decomposed and degassed to 50 ° C. or more, and the heated cleaning solution to the equipment to be cleaned And a re-feeding step.

Claims (12)

A supply pipe for supplying cleaning liquid to the equipment to be cleaned;
A recovery pipe for cleaning the equipment to be cleaned and recovering a cleaning liquid from which organic substances are eluted from the equipment to be cleaned;
Ozone gas generating means for generating ozone gas;
A mixing section for gas-liquid mixing the recovered cleaning liquid and the ozone gas;
A degassing unit for degassing the cleaning liquid in which organic substances are decomposed by the ozone gas;
An organic matter decomposing apparatus, wherein an organic matter is decomposed and degassed cleaning liquid is supplied again to the equipment to be cleaned. A treatment tank for retaining the cleaning liquid collected from the equipment to be cleaned;
2. The organic matter decomposing apparatus according to claim 1, wherein the ozone gas is diffused and gas-liquid mixed with the cleaning liquid staying in the treatment tank. Ejector having a negative pressure on the cleaning liquid recovered from the equipment to be cleaned,
The organic matter decomposing apparatus according to claim 1, wherein the ozone gas is sucked into the cleaning liquid having a negative pressure by the ejector and gas-liquid mixed. A gas-liquid mixing pump that pumps a gas-liquid two-phase flow of the cleaning liquid recovered from the equipment to be cleaned and the ozone gas supplied;
2. The organic matter decomposing apparatus according to claim 1, wherein the ozone gas is gas-liquid mixed with the cleaning liquid swirled by the gas-liquid mixing pump.   The organic matter decomposing apparatus according to claim 1, further comprising an ultraviolet irradiation unit that irradiates the cleaning liquid supplied with ozone gas with ultraviolet rays. The facility to be cleaned is a liquid product manufacturing facility,
The organic matter decomposing apparatus according to any one of claims 1 to 5, wherein the organic matter is an aroma component used for manufacturing the liquid product.   The organic matter decomposing apparatus according to any one of claims 1 to 6, wherein the temperature of the cleaning liquid supplied to the equipment to be cleaned is 50 ° C or higher. Supplying the cleaning liquid to the equipment to be cleaned and cleaning, cleaning the equipment to be cleaned, and recovering the cleaning liquid from which the organic matter has eluted from the equipment to be cleaned;
A step of gas-liquid mixing ozone gas into the recovered cleaning liquid and decomposing organic substances contained in the cleaning liquid;
Degassing the cleaning solution in which organic matter has been decomposed;
An organic matter decomposing method, and a step of re-supplying the degassed cleaning liquid to the equipment to be cleaned.   The organic matter decomposition method according to claim 8, wherein the organic matter is decomposed by irradiating the cleaning liquid supplied with ozone gas with ultraviolet rays. The facility to be cleaned is a liquid product manufacturing facility,
The organic matter decomposition method according to claim 8 or 9, wherein the organic matter is an aroma component used for manufacturing the liquid product.   11. The organic matter decomposition method according to claim 8, wherein the temperature of the cleaning liquid supplied to the equipment to be cleaned is 50 ° C. or higher.   12. The organic matter decomposition method according to claim 8, wherein the concentration of the organic substance to be decomposed contained in the cleaning liquid collected from the equipment to be cleaned is 300 ppb or less.

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