JP2012157850A - Oil adsorption tank of sewage and method for replacing oil treatment material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a maker for manufacturing an oil treatment tank houses an oil adsorbing material empirically, that is, determines the housing quantity of the oil adsorbing material while considering the aspect of capacity related to oil contamination, the point of time requiring replacement, a cycle to be permitted or the like because there is no conception quantitatively setting the degree of filling density at the time of housing of the oil adsorbing material at all.SOLUTION: At least the oil adsorbing materials 342 and 344 are housed in tanks 61, 71, 81, 351 and 361 constituted so as to prevent the leakage of a fluid from the inside and allow to pass drain water and the filling density when housing of the oil adsorbing materials 342 and 344 is set to 40-253 g/l.

Description

  The present invention relates to a technique for replacing an oil adsorption tank and an oil treatment material for sewage, and more specifically, an oil treatment material such as an oil adsorption material or an emulsified oil treatment agent is accommodated in the oil adsorption tank. At the time, it describes the technology that if it is stored based on what standard, it can have a higher function and can be maintained for a long period of time, and it is possible to replace the sewage oil adsorption tank and oil treatment material. It is.

  Examples of conventional technologies relating to the oil adsorption tank and oil treatment material replacement method for wastewater include an emulsified oil-containing wastewater treatment method, an oil separation adsorption tank that separates emulsified oil, an oil-separated liquid oil separation method, and An oil separator is seen (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

  First, Patent Document 1 describes a conventional method for treating emulsified oil-containing wastewater, which is similar to a method for replacing an oil adsorption tank and an oil treatment material for sewage.

In this case, when treating the emulsified oil-containing wastewater, Patent Document 1 treats the amine compound having a hydrocarbon group having 6 to 60 carbon atoms and / or a derivative thereof attached to and supported on a support. A technique is described in which oil-water separation is performed by coarsening or breaking emulsion particles in waste water and then treating with an oil adsorbent made of polypropylene and / or polystyrene fibers.
JP 54-6352 A

  Next, a conventional oil separation / adsorption tank that separates the emulsified oil, which is similar to the method for replacing the oil adsorption tank and the oil treatment material of sewage, will be described in Patent Document 2.

In this case, in Patent Document 2, an oil adsorbent that adsorbs oil and an amine that destroys the emulsified oil are filled in a state of being dispersed in a tank composed of a cylinder, upper and lower lids, and other parts. It is described whether the technology was made.
JP 2002-86143 A

  Further, Patent Document 3 describes a conventional oil content separation method and oil content separation device for an oil content liquid, which is similar to a method for replacing an oil adsorption tank and an oil treatment material in sewage.

In this case, Patent Document 3 discloses that an oil-containing liquid is supplied from the support layer side to the oil-separating layer composed of a support layer filled with a flocculant between particles and an oil-adsorbing material layer. It describes whether it is a technique for removing oil in the oil-containing liquid by flowing it to the layer side.
JP2004-8888

  However, there are the following problems related to the technique similar to the conventional method of replacing the oil adsorption tank and the oil treatment material in the sewage.

  That is, in any of the prior arts, there has been no idea of setting the packing density when storing the oil adsorbent to a numerical value. Therefore, as a manufacturer that manufactures an oil treatment tank, an oil adsorbent has been stored empirically. In other words, the amount of the oil adsorbent to be stored is determined in consideration of the performance point against oil contamination, considering the point in time when replacement is necessary, and considering the allowable cycle.

  In the present invention, at least an oil adsorbing material that adsorbs oil is stored in a tank that prevents fluid from leaking from the inside and allows drain water to pass through, and a packing density when storing the oil adsorbing material is 40 to 40. 253 grams / liter, and the tank contains only the oil adsorbent and an emulsified oil treatment agent that breaks the oil emulsified in the oil adsorbent. Or by storing only the oil adsorbent, and forming a region, and further, the tank is provided with an emulsified oil treatment agent that destroys only the oil adsorbent and the emulsified oil. By storing the oil adsorbent with the emulsified oil treating agent attached to the oil adsorbent, or by storing the oil adsorbent and the oil adsorbent with the emulsified oil treating agent in a mixed state, the site was formed. Furthermore, the above-mentioned Is characterized in that only the oil adsorbing material and granules obtained by adding an emulsified oil treatment agent are contained to form a region, and the emulsified oil treatment agent has 6 to 60 carbon atoms. The above problems have been solved by being an amine compound having a hydrocarbon group or a derivative thereof.

  In addition, the present invention has an oil adsorbent with a packing density of 40 to 253 grams / liter that adsorbs replaceable oil that needs to be replaced because the function deteriorates when a period in which the fluid flows inside is used. When there is a tank filled, when the function of the oil adsorbent is reduced, at least the oil adsorbent with a reduced function is replaced with one having a predetermined function, and is used again. In the tank, only the oil adsorbent and the emulsified oil treatment agent that breaks the emulsified oil in the oil adsorbent are stored in a dispersed state, or only the oil adsorbent is stored. Or by storing an oil adsorbent with an emulsified oil treatment agent in which only the oil adsorbent and an emulsified oil treatment agent that breaks the emulsified oil are attached to the oil adsorbent, or the oil adsorbent and the Oil adsorbent with emulsified oil treatment agent By characterized in that to have a different work by storing in a mixed state, it had to solve the above problems.

  As is clear from the above description, the present invention can provide the following effects.

  First, at least the oil adsorbing material that adsorbs oil is stored in a tank that prevents fluid from leaking from the inside and allows drain water to pass, and the filling density when storing the oil adsorbing material is 40 to 253. By adopting gram / liter, there is no variation in performance and quality, and when removing foreign substances from sewage, especially oil, one standard guideline is set, depending on the degree of dirt and flow rate. It has become possible to respond reliably.

  Secondly, in the tank, by storing only the oil adsorbent and the emulsified oil treatment agent that breaks the oil emulsified in the oil adsorbent, or by storing only the oil adsorbent, Or by storing an oil adsorbent with an emulsified oil treatment agent in which only the oil adsorbent and an emulsified oil treatment agent that breaks the emulsified oil are attached to the oil adsorbent, or an oil adsorbent and an oil with an emulsified oil treatment agent By forming the parts by storing the adsorbents in a mixed state and having different functions, it becomes easy to cope with each degree of dirt.

  Thirdly, the tank contains various types of emulsified oil that breaks the oil that has been emulsified by forming a part by storing only the oil adsorbent and the granule plus the emulsified oil treatment agent. It became possible to deal with processing agents while expanding the range of options.

  Fourthly, the emulsified oil treating agent is an amine compound having a hydrocarbon group having 6 to 60 carbon atoms or a derivative thereof, so that the emulsified oil can be reliably destroyed.

  Diagram showing the entire invention of the present application   Detailed view of the oil adsorption tank of the present invention   Detailed view of another first oil adsorption tank of the present invention   Detailed view of another second oil adsorption tank of the present invention   The figure which arranged the oil adsorption tank of the present invention in parallel   Detailed view of another third oil adsorption tank of the present invention   Detailed view of another fourth oil adsorption tank of the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Here, FIG. 1 is a diagram showing the whole of the present invention, FIG. 2 is a detailed view of the oil decomposition adsorption tank of the present invention, and FIG. 3 is another first oil adsorption of the present invention. 4 is a detailed view of the second oil adsorption tank of the present invention, FIG. 5 is a diagram in which the oil adsorption tanks of the present invention are arranged in parallel, and FIG. FIG. 7 is a detailed view of another third oil adsorption tank of the present invention, and FIG. 7 is a detailed view of another fourth oil adsorption tank of the present invention.

  As shown in FIG. 1, reference numeral 10 denotes an air compressor that generates compressed air. The air compressor 10 includes a motor 11, a compressor 12, and an air tank 13. The rotation of the motor 11 is transmitted to the compressor 12 by a belt 14, thereby capturing air. However, compressed air is created and stored in the air tank 13.

  Here, the compressed air stored in the air tank 13 passes through the compressed air pipe 111, the aftercooler 20, the compressed air pipe 112, the dryer 30, the compressed air pipe 113, the air filter 40, and the compressed air pipe 114. Compressed air can be supplied via.

  In this case, the compressed air is dried by cooling with the after cooler 20 and the dryer 30, and various foreign matters are removed by the air filter 40, so that the dried clean compressed air can be sent out from the compressed air pipe 114. It can be done. However, in order to dry the compressed air, it is not necessary to limit the method to cooling, and other methods such as a separation membrane and a desiccant may be used. To remove foreign substances from the compressed air, one set (one type) It is not necessary to limit to passing through the air filter 40, and two sets (two types), three sets (three types), or more may be used. As a matter of course, a single type may be routed through a plurality of sets, two types of three sets or more, and three types via four sets or more.

  On the other hand, from the lower part of the air tank 13, the drain pipe 121, the valve 122 that can be manually opened and closed, the drain pipe 123, and the drain water are compressed air by some signal such as the presence of drain water or a certain time. The drainage water can be discharged by connecting to the drain collecting pipe 161 via the drain drain 125 and the electric drain trap 124 that can be discharged together.

  The aftercooler 20 also supplies drain water together with compressed air by a drain pipe 131, a valve 132 that can be manually opened and closed, a drain pipe 133, and the presence of drain water or a signal such as a certain time. The electric drain trap 134 that can be discharged and the drain pipe 135 are connected to the drain collecting pipe 161 so that the drain water can be discharged.

  Further, the drain water is discharged from the dryer 30 together with the compressed air by a drain pipe 141, a valve 142 that can be manually opened and closed, a drain pipe 143, and the presence of drain water or a signal such as a certain time. The electric drain trap 144 and the drain pipe 145 that can be connected are connected to the drain collecting pipe 161 to allow drain water to be discharged.

  In addition, from the air filter 40, the drain water is compressed air by a drain pipe 151, a valve 152 that can be manually opened and closed, a drain pipe 153, and the presence of drain water or a signal such as a certain time. In addition, it is connected to a drain collecting pipe 161 via an electric drain trap 154 and a drain pipe 155 that can be discharged together, and drain water can be discharged.

  Here, the drain collecting pipe 161 where the drain water merges is supplied from the fresh water pipe 173 via the check valve 162, the drain collecting pipe 163, and the oil / water separator 210 that separates various foreign substances including oil. Can be discharged. In this case, the check valve 162 allows drain water to pass from the drain collecting pipe 161 to the drain collecting pipe 163, but prevents the drain water from flowing back from the drain collecting pipe 163 to the drain collecting pipe 161. The fresh water discharged from the fresh water pipe 173 is so clean that the oil emulsified by the oil / water separator 210 can be removed and discharged into the river as it is.

  The oil / water separation device 210 includes an oil / water separation tank 50 and two sets of oil adsorption tanks 60, and the oil / water separation tank 50 and the oil adsorption tank 60 are connected by a fresh water pipe 171. Are connected by a fresh water pipe 172. However, the oil adsorption tank 60 does not need to be limited to two sets, and may be one set, three sets, or more. Here, in FIG. 1, the two sets of oil adsorption tanks 60 are arranged in series, but depending on the state of the drain water sent from the fresh water pipe 171, the amount of drain water is large. 5 may be arranged in parallel as seen in FIG. 5, or in more series than the two sets shown in FIG. It is also conceivable to arrange the series in parallel. Moreover, as the oil-water separator 210, the case where the oil-water separation tank 50 is not comprised is also considered.

  In this case, the oil / water separation tank 50 partitions the inside of the sealed oil / water separation tank main body 50a by the partition plate 50d, but the upper part is in a state where compressed air, which is a gas, can freely enter and exit, and the lower part is a drain, which is a liquid. Considering the state in which water can freely enter and exit, two chambers, an oil floating separation chamber 50b and a water storage chamber 50c, are formed.

  Then, the drain water flows into the upper part of the oil floating separation chamber 50b with the other end of the inlet pipe 50e connected to the drain collecting pipe 163 via the joint 50h positioned higher than the liquid level. . Accordingly, in the oil floating separation chamber 50b, oil lighter than water floats on the liquid surface, and foreign matters heavier than water settle on the bottom. Although not specifically shown in FIG. 1, the floating oil can be discharged by a manual or electric discharge valve or the like.

  On the other hand, in the water storage tank chamber 50c, the pipe end 50g, which is the end of the outlet pipe 50f, is positioned on the liquid surface, and the lower part of the partition plate 50d positioned between the oil floating separation chamber 50b and the water storage tank chamber 50c. A relatively clean drain water from which foreign substances heavier than water and foreign substances heavier than water are removed flows from the communicating part. Here, the outlet pipe 50f is connected to the fresh water pipe 171 through the joint 50i. Accordingly, the relatively clean drain water from which the oil collected on the liquid surface of the water storage chamber 50c is removed is sent to the outlet pipe 50f with the help of the compressed air remaining in the upper part of the oil / water separation tank body 50a. The oil is fed into the oil adsorption tank 60 via the joint 50 i and the fresh water pipe 171.

  2, the oil adsorption tank 60 includes a tank 61 that stores the emulsified oil treatment agent 341 and the oil adsorbents 342 and 344, a base 321 that fixes the tank 61 to the ground, and a tank 61. It is comprised from the four nuts 305 which fix this to the mount frame 321.

  The tank 61 has a cylinder 301 as a main body, two upper and lower upper lids 302g and a lower lid 302h which are positioned at both upper and lower ends of the cylinder 301, and fluid inside the cylinder 301 leaks to the outside. Two upper and lower O-rings 303, four bolts 304 penetrating the upper lid 302 g and the lower lid 302 h sandwiching the O-ring 303 and the cylinder 301, and the cylinder 301 at both ends of the bolt 304. The two O-rings 303, the upper lid 302g, the eight nuts 305 for fixing the lower lid 302h, the upper and lower hose joints 310 connected to the fresh water pipes 171, 172, 173, the cap 343, and the gap cylinder 332, , Two punching plates 331, an intermediate porous plate 33 that is also a compression preventing means 333, and a holding cylinder 334 that is also a compression preventing means 334. In this case, it is conceivable that the two upper lids 302g and the lower lid 302h are the same in consideration of the shapes of the cap 343 and the gap cylinder 332.

  Here, as a material of the cylinder 301, it is common to use a commercially available vinyl chloride pipe or a steel pipe, but it is also possible to manufacture by welding after bending an iron or stainless steel material into a cylinder shape. In addition, the use of glass or acrylic resin is also conceivable. Further, as the material of the upper lid 302g and the lower lid 3102h, it is possible to use iron, stainless steel, aluminum, or the like.

  In this case, the shape of the cylinder 301 is absolutely required to be a hollow cylinder, but it may be a cylinder, an octagonal cylinder, a hexagonal cylinder, a pentagonal cylinder, a quadrangular cylinder, or a triangular cylinder. This is desirable. The reason is that it is easy to obtain, whether it is a vinyl chloride material or a metal material, and is therefore easy to manufacture. On the other hand, the shape of the upper lid 302g and the lower lid 302h corresponds to the shape of the cylinder 301. If the shape of the cylinder 301 is a circle, it is a triangle, a rectangle, a pentagon, a hexagon, an octagon, or a circle. If the shape of the tube 301 is a triangle, it may be a triangle or a hexagon, and if the shape of the tube 301 is a rectangle, it may be a rectangle or an octagon. When the shape of the cylinder 301 is pentagonal, a pentagonal shape is conceivable. When the shape of the cylinder 301 is hexagonal, a triangular or hexagonal shape is conceivable. In the case of an octagon, a quadrangular, octagonal, or circular shape can be considered.

  Further, the hose joint 310 is composed of a joint body 311, a nut 312 and a sleeve 313, and the male thread portion of the joint body 311 is connected and fixed to the central portion of the upper lid 302 g and the lower lid 302 h by screwing. In this case, the hose joint 310 is in a state in which the sleeve 313 is sandwiched between the joint body 311 and the nut 312 with the sleeve 313 inserted into the fresh water pipes 171, 172, and 173, and the joint body 311 and the nut 312 are screwed together. The fresh water pipes 171, 172, and 173 are fixed to the oil adsorbing tank 60 via the hose joint 310. The fresh water pipes 171, 172, 173 may be steel pipes, rubber hoses, or vinyl hoses.

  By the way, the inside of the tank 61 is formed into a hollow state by the cylinder 301 and the upper lid 302g and the lower lid 302h, but is further a portion 61x that adsorbs oil containing an oil adsorbent 342 of a certain size. Emulsion breaking oil and oil containing oil adsorbing part 61x, finely divided emulsified oil treating agent 341, fine activated carbon intended to adsorb or remove pigments and off-flavors, and oil adsorbent 342 of a certain size dispersed therein And an oil adsorbent 344 having a constant size and a size close to the inner cross-sectional area of the tank 61 so that the fine emulsified oil treatment agent 341 does not flow out. The drain water flows in the order of description through the emulsified oil treatment agent outflow prevention part 61z which is the housed part 61z and the space part 61a for the purpose of preventing the formation of a specific flow path in the tank 61. It is formed in the split form.

  The oil adsorbing part 61x is formed by a cylinder 301, a lower lid 302h, and a punching plate 331 having many small holes, and the emulsion breaking oil adsorbing part 61y and the emulsified oil treatment agent outflow preventing part 61z are The space 61a is formed by the cylinder 301, the upper lid 302g, and the punching plate 331.

  Further, the oil adsorbing part 61x is in contact with the punching plate 331 at the upper back, and is positioned so that the entire periphery of the lower end part does not move to the groove inside the lower lid 302h, and by using a cap 343 having a flow path 343a, The lower lid 302h and the cap 343 form two parts, the inlet side front oil adsorbing part 61xx, and the cylinder 301, the punching plate 331, the lower lid 302h and the cap 343, the inlet side rear oil adsorbing part 61xy. Then, the drain water from the fresh water pipes 171 and 172 passes through the hose joint 310 and passes through the inlet-side front oil adsorbing portion 61xx, the flow path 343a, the inlet-side rear oil adsorbing portion 61xy, and the punching plate 331, and the emulsion breaking oil. It flows into the suction part 61y.

  Here, the flow path 343a formed in the cap 343 is opened on the side surface so that the fluid flows from the inside to the outside of the cylindrical cap 343, and even in the case of one place, two places, three places, and four places. , 5 locations, 6 locations, 8 locations, and other cases. The reason why the oil adsorbing part 61x is divided into two parts of the inlet side front oil adsorbing part 61xx and the inlet side rear oil adsorbing part 61xy using the cap 343 is that the time for contacting the drain water with the oil adsorbing material 342 is reduced. This is because the oil adsorbent 342 is in contact with the oil adsorbent 342 through a long distance for a long time, and is intended to complete the adsorption of oil by the oil adsorbent 342. As a matter of course, if the cap 343 is not provided, the drain water flowing between them tends to flow through the shortest distance between the hose joint 310 and the punching plate 331.

  However, regarding the oil adsorbing part 61x, it is also possible to use a cap 343, instead of dividing the oil adsorbing part 61x into two parts, the inlet-side front oil adsorbing part 61xx and the inlet-side rear oil adsorbing part 61xy. It is done. Moreover, in order to make drain water contact the oil adsorbent 342 for a long time, the oil adsorbing part 61x may be partitioned by a baffle plate. Further, although not specifically illustrated in FIG. 2, the space portion 61a, the punching plate 331, the oil adsorbing portion 61x, the emulsion breaking oil adsorbing portion 61y, and the emulsified oil treating agent have the same idea on the inlet side as the outlet side. It is also conceivable that the drainage prevention portion 61z, the punching plate 331, the space portion 61a, and the drain water flow in the order described.

  In addition, the inside of the tank 61 adsorbs replaceable oil that needs to be replaced because it deteriorates its function when used for a period in which relatively clean drain water that is fluid flows. The oil adsorbents 342 and 344 and the emulsified oil treatment agent 341 that destroys the emulsified oil and coarsens the destroyed oil are stored. In particular, an oil adsorbing material 342 is provided in the oil adsorbing portion 61x, an emulsified oil treating agent 341 and an oil adsorbing material 342 are provided in the emulsion breaking oil adsorbing portion 61y, and an oil adsorbing material is provided in the emulsion oil treating agent outflow preventing portion 61z. 344 is stored. In addition, it is also conceivable to add fine activated carbon to the emulsion breaking oil adsorbing portion 61y for the purpose of adsorbing or removing pigments and off-flavors. The emulsified oil treatment agent spill prevention part 61z is provided with an oil adsorbent 344 having a slightly smaller size that can be accommodated in a shape close to the inner cross-sectional area of the tank 61 made of nonwoven fabric, or a string-like or constant size. The oil adsorbent 344 cut into the length is stored, and one or both of them is cut (in particular, when the non-woven fabric is used in a shape close to the inner cross-sectional area, the object is cut into a string shape. On both sides or downstream of things). In particular, the oil adsorbents 342 and 344 may be made of the same material or different materials, and those of different sizes may be used when considering the size. It should be noted that the size to be cut can be considered to match the size of the oil adsorbent 342 described later.

  In this case, a relatively clean drain water that is a liquid flows uniformly at each point on the cross section perpendicular to the flow in the tank 61 at least in the emulsion breaking oil adsorbing portion 61y and the emulsified oil treatment agent outflow preventing portion 61z. In addition, a space 61 a is secured on the outlet side of the cylinder 301. Therefore, in order to secure the space 61a on the downstream side of the drain water, a cylindrical gap cylinder 332 having a smaller diameter than the cylinder 301 is positioned between the punching plate 331 having many small holes and the upper lid 302g. By doing so, both the emulsified oil treating agent outflow prevention part 61z and the emulsion breaking oil adsorbing part 61y are positioned in the central part between the two punching plates 331.

  However, the gap cylinder 332 need not be limited to a cylindrical shape, and if the space 61a can be secured, a plurality of struts or their struts can be screwed, welded, brazed, or by various adhesives, etc. Any shape such as one integrated with 331 may be used. The punching plate 331 may be anything such as iron, stainless steel, aluminum, plastics, etc., as long as it has many small holes, and may be ceramic resin. Further, as a material of the gap cylinder 332, a steel pipe, a steel material, vinyl chloride, or the like can be considered.

  Further, the emulsified oil treating agent 341 and the oil adsorbing materials 342 and 344, particularly the oil adsorbing materials 342 and 344, increase in resistance as they adsorb foreign substances such as oil, and are further pressed by being pressed toward the downstream while being compressed. At the same time, the function of breaking emulsion and oil adsorption gradually decreases.

  Therefore, in order to prevent this even a little, a large number of small liquids are provided so that the liquid can easily pass through the substantially central portion of the tank 61 so that the flow of relatively clean drain water, which is a liquid, can be blocked vertically. An intermediate porous plate 333 having a hole is disposed, and a cylindrical holding tube 334 having a smaller diameter than the tank 61 is interposed between the intermediate porous plate 333 and the punching plate 331 located on the downstream side to support the intermediate porous plate 333. Is provided to constitute compression preventing means 333 and 334 to prevent the emulsified oil treating agent 341 and the oil adsorbents 342 and 344 from being compressed. The holding cylinder 334 may be made of steel pipe, steel, vinyl chloride pipe, etc., and the intermediate porous plate 333 may be made of any material such as iron or stainless steel, aluminum or plastic, or ceramic resin. Conceivable. In this case, depending on the shape of the oil adsorbing material 344 housed in the emulsified oil treatment agent spill prevention part 61z, the non-woven fabric tank 61 is particularly formed on the boundary surface between the emulsion breaking oil adsorption part 61y and the emulsified oil treatment agent spill prevention part 61z. When the oil adsorbent 344 having a slightly smaller size that can be stored in a shape close to the inner cross-sectional area is positioned, the length of the holding cylinder 334 is set to the intermediate perforated plate 333 and the punching plate 331 positioned on the downstream side. It is also possible to make it shorter than the length up to.

  However, as for the position of the intermediate porous plate 333, it does not matter if it is slightly around the center of the tank 61. Further, the holding cylinder 334 is not limited to a cylindrical shape, and any shape such as a prism may be used as long as the intermediate porous plate 333 fixed with several bolts can be supported.

  Here, as described above, the tank 61 contains the oil adsorbents 342 and 344 in various forms. At that time, when viewed in the entire tank 61, the filling density of the oil adsorbents 342 and 344 is preferably 40 to 253 grams / liter, more preferably 50 to 200 grams / liter, and 70 to 170 grams / liter. Is most desirable. By the way, the reason why it is desirable, more desirable, and most desirable is that, as the function of the oil adsorbents 342 and 344, the smaller the number of the oil adsorbents 342 and 344, the more obvious the deterioration of the function. The more it is, the more dense it becomes and it becomes difficult for drain water to flow, and the aforementioned value is the boundary.

  Incidentally, as shown in FIG. 2, the emulsion breaking oil adsorbing portion 61y forming the tank 61 stores both the emulsified oil treating agent 341 and the oil adsorbing material 342 in a dispersed state. . At that time, it is desirable to pass the finely divided emulsified oil treating agent 341 and the oil adsorbent 342 having a certain size dispersed in a weight ratio of 1: (1 to 10). A ratio of 1 to 5) is more desirable, and a ratio of 1: (1 to 3) is most desirable. By the way, the reason why the numerical values in desirable, more desirable, and most desirable are different is the balance between the function of the emulsified oil treatment agent 341 for breaking the emulsified oil and the function of the oil adsorbent 342 for adsorbing oil. As a result of the actual confirmation, it is natural that the weight ratio of the emulsified oil treating agent 341 and the oil adsorbent 342 is 1: 1. The effect on the destruction of the oil was small and the aforementioned value was the boundary. On the other hand, the limit of 1: 1 by weight ratio indicates a limit in terms of the function of oil adsorption, and if the ratio of the oil adsorbent 342 becomes smaller than this, the ability of oil adsorption becomes insufficient. That is.

  On the other hand, with respect to the emulsified oil treating agent 341 used in the present invention, an amine compound or a derivative thereof is conceivable. When the amine compound or the derivative thereof is 25 ° C., it is preferably solid, but the compound is 25 Even if it is non-solid at ° C., it may be a compound that becomes solid in a mixture with other compounds. That is, the compounds may be used alone or in combination of two or more.

  By the way, these amine compounds and derivatives thereof are preferably primary amines, secondary amines, tertiary amines, and derivatives thereof, more preferably primary amines, secondary amines, and derivatives thereof, particularly preferably, Primary amines (eg stearylamine) and their derivatives.

  Examples of the amine compound include primary amines such as hexylamine, heptylamine, octylamine, nonylamine, decylamine, laurylamine, myristylamine, palmitylamine, oleylamine, stearylamine, or hydrocarbon chains thereof. Secondary amines such as diamines and triamines, and tertiary amines, or their picrates, various salts (for example, salts of hydrochloric acid, sulfuric acid, phosphoric acid, carbonic acid, acetic acid, etc.), and these hydrocarbon chains Examples include primary amines, secondary amine acid amides, amidines, ureas, thioureas, and primary amine Schiff bases.

  Furthermore, as the amide, sulfonamides such as p-toluenesulfonyl-N-stearylamide and N-stearylacetamide are preferable. Moreover, the quaternary ammonium salt, betaine, etc. which have these hydrocarbon chains are mentioned. For example, polyvalent amines such as stearyl propylene diamine and semi-cured beef tallow diamine can be used. Furthermore, it is also possible to use a mixture of amines having hydrocarbon chains having different carbon numbers such as hardened beef tallow amine and coconut amine.

  Now, what is said to be effective with respect to the amine compound used in the present invention has a structure having a hydrophobic hydrocarbon chain and a hydrophilic group in the molecule. This is because the balance with the hydrophilic portion preferably acts on the emulsion particles. In this case, since the amine compound having a relatively low HLB value acts effectively, generally the organic compound having less than 6 carbon atoms has a small proportion of the hydrophobic portion and is suitable for emulsion particles. It is considered that a good balance between hydrophobicity and hydrophilicity cannot be obtained. On the other hand, when the number of carbon atoms exceeds 60, the ratio of the hydrophobic portion is too high, so that it is considered that the hydrophilic property cannot be imparted to the emulsion particles.

  And as the emulsified oil treating agent 341 generally supplied in the market, it can be said that the emulsified oil treating agent 341 is an irregular mixture including large ones. Therefore, in order to make it small, an electric mixer, an electric mill mill, an electric or manual sieve is used alone or in combination as a pulverizing means.

  At that time, the size of the emulsified oil treating agent 341 after pulverization is preferably 0.001 to 1.5 mm, and more preferably 0.001 to 1.2 mm. Most preferably, the size is 0.001 to 1.0 mm. In this case, as an example, the description of 0.001 to 1.5 mm can have various meanings, but the emulsified oil has a size limited to the vicinity of a specific dimension between 0.001 and 1.5 mm. Rather than using only the treatment agent 341 as the center, it is desirable that various types of dimensions in the range of 0.001 to 1.5 mm are mixed.

  That is, it is confirmed that if all the particles are collected into small particles, the durability is inferior, and if all the particles are collected in large particles, the emulsion breaking point is inferior. By the way, the reason why the numerical values are different among desirable, more desirable, and most desirable is that when the function of the emulsified oil treating agent 341 of breaking the emulsified oil is considered together with durability, the emulsified oil treating agent 341 is used. Larger particles are also necessary, but there are limits, and the above values were the confirmed limits.

  Moreover, as an adsorbent used for the oil adsorbents 342 and 344, an adsorbent made of fibers including a nonwoven fabric such as polypropylene or polystyrene can be considered. However, the adsorbents used for the oil adsorbents 342 and 344 need not be limited to those described above, and activated carbon and sawdust are also considered if they have an oil adsorbing function and are insoluble in water. Or any other one.

  On the other hand, the oil adsorbent 342 preferably has a size of (1 to 15 mm) × (1 to 15 mm) × (3 to 50 mm), and (1 to 5 mm) × (3 to 10 mm) × (3 to 30 mm). ), And more preferably (2-4 mm) × (3-7 mm) × (5-20 mm). By the way, the reason why the numerical values in desirable, more desirable, and most desirable are different is that, when considering the function of the oil adsorbent 342 called oil adsorption together with durability, the size is generally uniform. Is desirable, but the aforementioned value was the confirmed limit.

  In this case, in view of the size, the gap formed by the oil adsorbing material 342 is too small and does not obstruct the flow of drain water, and is too large to store the oil in a small amount. The oil adsorbent 342 is not excessively bent and does not force the oil adsorbent 342 to be compressed, so that an appropriate size can be secured. The function regarding destruction and coarsening became high, and this function can be maintained for a long time. In this case, the oil adsorbent 342 having a certain size is obtained by cutting the size of the oil adsorbent 342 or the like. As for the oil adsorbing material 342, the same material is used for both the oil adsorbing portion 61x and the emulsion breaking oil adsorbing portion 61y. However, different materials and shapes may be used. Absent. In addition, although the two parts described above and the emulsified oil treatment agent outflow prevention part 61z are described as being different from each other, the same thing including the material and shape may be used.

  Here, with respect to the cylinder 301 constituting the tank 61, a transparent material made of glass or acrylic plastic such as acrylic resin is used for the purpose of making the inside situation visible from the outside, or from the outside to the inside. It is also conceivable to insert a transparent material such as glass or plastic so that the situation can be visually confirmed.

  The function of the emulsified oil treating agent 341 in the emulsion breaking oil adsorbing part 61y will be specifically described. Water in a state in which a minute oil is combined with water to be emulsified is destroyed by emulsion breaking. The released oil gathers and coarsens, and then the coarsened oil is adsorbed by the oil adsorbing material 342. Therefore, the emulsified oil treating agent 341 and the oil adsorbing material 342 are scattered, so that the oil can be removed by completely separating and adsorbing the oil from the emulsified water. Among them, when activated carbon is present, pigments and off-flavors can be adsorbed and removed.

  Incidentally, in FIG. 1, as the configuration of the oil / water separation device 210, in addition to the configuration of the oil / water separation tank 50 and the two sets of oil adsorption tanks 60 described so far, the oil / water separation tank 50 and the two sets of oil adsorption tanks. 70, oil / water separation tank 50, oil adsorption tank 70 and oil adsorption tank oil 60, oil / water separation tank 50 and two sets of oil adsorption tank 80, oil / water separation tank 50 and oil adsorption tank 70, The configuration of the oil adsorption tank 80 is described.

  In this case, the tank 71 constituting the oil adsorption tank 70 includes a space portion 71a for the purpose of preventing the formation of a specific flow path and an oil of a certain size, as shown in FIG. The oil adsorbing part 71x, which is a part 71x that adsorbs the oil containing the adsorbent 342, and the space 71a are formed in a divided form so that drain water flows in the order described. Therefore, in the oil adsorption tank 70, oil is mainly adsorbed.

  Moreover, the tank 81 which comprises the oil adsorption tank 80 is the space part 81a for the purpose of preventing forming a specific flow path, and the oil adsorption of a fixed magnitude | size, as FIG. 4 shows. An oil adsorbing portion 81x that is a portion 81x that adsorbs oil containing the material 342 and an oil adsorbing material 345 with an emulsified oil treating agent in which an emulsified oil treating agent 341 that breaks the emulsified oil is attached to the oil adsorbing material 342. The emulsion breaking oil adsorbing part 81y which is the housed part 81y and the two parts 81x and 81y are repeated, and the activated carbon containing part 81v which is the part 81v containing the activated carbon 346 is positioned in the middle, and further the oil which is the part 81x The adsorbing part 81x and the space part 81a are formed so as to be divided so that drain water flows in the order described. In this case, in FIG. 4, the portions 81x and 81y are repeated three times in total, but may be one time, two times, or four times or more.

  It should be noted that the contents stored in the emulsion breaking oil adsorption portion 61y of the oil adsorption tank 60 and the emulsion breaking oil adsorption portion 81y of the oil adsorption tank 80 have the same function and can be replaced. That is, an emulsion adsorbent 345 with an emulsified oil treatment agent in which an emulsified oil treatment agent 341 that breaks the emulsified oil is attached to the oil adsorbent 342 is stored in the emulsion breaking oil adsorption portion 61y of the oil adsorption tank 60, It is also conceivable to store the emulsified oil treatment agent 341 for breaking the emulsified oil and the oil adsorbent 342 in the emulsion breaking oil adsorbing portion 81y of the adsorption tank 80 in a dispersed state.

  And when it comprises two sets of oil adsorption tanks 60, 70, and 80 in series, it is as shown in FIG. 1, but when it comprises more oil adsorption tanks 60, 70, and 80 including three sets, The case where only the same oil adsorption tank 60, only the oil adsorption tank 70, or only the oil adsorption tank 80 is located is an extension of FIG. 1 and there is no problem, but the case where the oil adsorption tanks 70, 60 are positioned together. The oil adsorbing tanks 70 and 70 are positioned alternately in the state where the oil adsorbing tanks 70 are positioned in the uppermost stream, the most downstream, or both, and the oil adsorbing tanks 70 are not overlapped in the upstream and downstream otherwise. It is conceivable that the adsorption tank 60 is positioned, and when the oil adsorption tanks 70 and 80 are positioned together, the oil adsorption tank 70 is positioned in the most upstream or the most downstream, or both, and the other is upstream or downstream. Oil adsorption tank 70 with no overlap 70 and 80 is conceivable to position the or oil adsorption vessel 80 is positioned alternately.

  Further, when the oil adsorption tanks 60, 70, 80 constituting the oil / water separator 220 are arranged in parallel, as shown in FIG. 5, only the same oil adsorption tank 60, only the oil adsorption tank 70, and the oil The premise is that only the adsorption tank 80 is positioned in parallel. However, there are different ones including one set, two sets, three sets or more related to the oil adsorption tanks 60, 70, 80 described in series as shown in FIG. It can be considered that it can be used as long as all the cases including the case where they are used in a mixed manner are arranged in one column and each column is positioned in the same configuration. In this case, the meaning of the same configuration in each row is due to consideration that drain water flows evenly in each row.

  On the other hand, as shown in FIG. 6, the tank 351 constituting the oil adsorption tank 350 is emulsified into a space 351a for daily use that prevents the formation of a specific flow path, and the granules 347. An emulsion breaking part 351y that is a part 351y that contains an emulsion oil treatment agent 348 that breaks the oil that has been destroyed, and an oil adsorbing part that is a part 351x that adsorbs oil that contains an oil adsorbent 342 of a certain size After repeating 351x and the two parts 351y and 351x, the space 351a is formed in a form that is divided so that drain water flows in the order described. In this case, in FIG. 6, the portions 81x and 81y are repeated four times in total, but may be one time, two times, three times, five times or more.

  In addition, as the particles 347, inorganic or organic powders or particles having a particle size of 0.1 to 3 mm can be used. For example, activated carbon, zeolite, diatomaceous earth, activated clay, anthracite, It is possible to use inorganic particles of bentonite, alumina, activated alumina, sand, organic polymer particles such as vinyl chloride, polypropylene, polyethylene, and polyester, and cloth.

  Further, as the emulsified oil treatment agent 348, inorganic gel agents such as aluminum hydroxide and ferric hydroxide that can suck various oils and break the emulsion can be used. It is also possible to use a polymer type. And about an inorganic type gel agent, the electrolyte solution obtained by electrolyzing an aluminum plate, an iron plate, etc. as an electrode in water or thin salt solution can be used.

  When an aluminum plate is used as an electrode, this electrolytic solution contains eluted aluminum hydroxide. And the aluminum hydroxide in electrolyte solution turns into a white gel-like deposit. Moreover, when an iron plate is used as an electrode, the eluted iron hydroxide is contained. And the ferric hydroxide in electrolyte solution turns into a brown gel-like precipitate. Furthermore, the aqueous solution of aluminum sulfate or polyaluminum chloride is neutralized with an alkali such as sodium hydroxide to precipitate aluminum hydroxide, which is an insoluble gel-like precipitate, and the solution is used as an inorganic gel. You can also. In addition, by neutralizing ferric sulfate aqueous solution or polyferric chloride aqueous solution with alkali such as sodium hydroxide, ferric hydroxide, which is an insoluble gel-like precipitate, is precipitated, and the solution is inorganic. It can also be used as a system gel.

  Here, in the oil adsorbing tank 350, the emulsion breaking part 351y is formed by attaching an emulsified oil treatment agent 348 that breaks the emulsified oil to the surface of the particles 347 and integrating them. Further, a part of the emulsified oil treatment agent 348 that breaks the emulsified oil stored in the emulsion breaking part 351y penetrates the surface of the oil adsorbing part 351x to partially form one layer. And while the liquid containing oil passes the layer of the surface of the emulsion breaking part 351y and the oil adsorption | suction part 351x, the emulsified oil coarsens and is adsorbed and removed by the oil adsorption part 351x.

  Furthermore, as shown in FIG. 7, the tank 361 constituting the oil adsorption tank 360 includes a space 361a for preventing the formation of a specific flow path, and an oil adsorption of a certain size. An emulsified oil treating agent 341 for breaking the emulsified oil 342 and the emulsified oil treating agent-attached oil adsorbing material 345 in which the emulsified oil treating agent 345 is attached to the oil adsorbing material 342, and an activated carbon 346 The activated carbon storage part 81v that is the part 81v storing the water, the emulsion breaking oil adsorbing part 361y that is the part 361y, and the space part 351b are formed in such a manner that the drain water flows in the order described. In this case, the major feature of the oil adsorption tank 360 is the shape in which the inner cylinder 325 is formed. When compared with the other oil adsorption tanks 60, 70, 80, 350, the stored oil adsorbent 342 and the emulsified oil treatment The distance (in other words, time) in contact with the agent-attached oil adsorbent 345 is expected to be long and bring about an appropriate effect.

  In addition, if various kinds of stored items are described, in the oil adsorption tanks 60, 70, 80, 350, and 360, each of the parts 61x, 61y, 61z, 71x, 81x, 81y, 81v, 351y, and 351x is independent. Are stored in a mixed form in the part 361y, but if the functions of oil adsorption, emulsion breakage, etc. are the same, each stored item is appropriately stored in each oil adsorption tank 60, 70, It is possible to store as an alternative between the 80, 350 and 360. Further, regarding the concept of the packing density of the oil adsorbing material 342 in the oil adsorbing tanks 70, 80, 350, and 360, the weight stored in the oil adsorbing material 342 with respect to the internal volume of the oil adsorbing tanks 70, 80, 350, and 360 It can be considered that the contents shown in the oil adsorption tank 60 are applicable as they are.

  The oil adsorption tanks 350 and 360 can be used in place of the oil adsorption tanks 60 and 80 shown in FIGS. 1 and 5.

  The oil adsorption tank for sewage and the method for replacing the oil treatment material according to the present invention are configured as described above, and the contents thereof will be described below.

  In general, sewage containing oil includes water that has recovered oil that has flowed into the river due to some trouble, and oil that has flowed out of the ship into the sea due to sinking or other problems. The recovered seawater, various waste liquids generated at the factory, drain water generated by decomposing compressed air, water generated from an air conditioner, and the like can be considered. Here, various measures have been taken to separate the oil from these sewage waters into clean water, but the contents are being described.

  Here, as an example, a method for separating oil from drain water generated by decomposing compressed air is shown. Therefore, as for the treatment of sewage containing the other oil described above, it may be considered that the treatment of oil / water separation is performed by sending it to the oil / water separation devices 210 and 220 by some method such as sending by a pump.

  First, when the motor 11 constituting the air compressor 10 is operated, the rotational motion of the motor 11 is transmitted to the compressor 12 via the belt 14, thereby sucking the atmosphere to create compressed air and storing it in the air tank 13. Here, the stored compressed air includes compressed air piping 111, aftercooler 20 that cools compressed air, compressed air piping 112, dryer 30 that dries compressed air, compressed air piping 113, and compressed air. Dry and clean compressed air is sent to the compressed air piping 114 via the air filter 40 that removes various foreign substances. The dry and clean compressed air, which is not specifically shown in FIG. 1, can operate various actuators such as an air motor and an air cylinder.

  On the other hand, the drain water generated from the compressed air by the air tank 13, the aftercooler 20, the dryer 30, and the air filter 40 together with the compressed air, the drain pipes 121, 131, 141, 151, the valves 122, 132, 142, 152, the drain The pipes 123, 133, 143, 153, the drain traps 124, 134, 144, 154 and the drain pipes 125, 135, 145, 155 are all joined together in the drain collecting pipe 161, and the check valve 162 The oil / water separators 210 and 220 are sent to the oil / water separators 210 and 220 via the drain collecting pipe 163, and the oil / water separators 210 and 220 remove various foreign matters including oil and proceed to the downstream while sending them as fresh water. 173 so that it can be made clean water with no problem even if it is discharged into the river as it is You have me.

  Regarding the operation of the drain traps 124, 134, 144, and 154, the drain traps are opened at regular intervals for a certain period of time, or the presence of drain water is confirmed at a specific place (not specifically shown). Then, it may be possible to open for a certain period of time.

  In this case, in the oil / water separator 210, first, drain water or compressed air from the air tank 13 after cooler 20, the dryer 30, or the air filter 40 passes through the drain collecting pipe 161, the check valve 162, and the drain collecting pipe 163. Then, it is sent to the oil / water separation tank 50 that constitutes the oil / water separation device 210, and the drain water and the compressed air out of the drain water and the compressed air sent to the place higher than the liquid level through the joint 50h and the inlet pipe 50e. Is temporarily stored in the oil / water separation tank 50, and the compressed air stays above the liquid level.

  By the way, the drain water stored in the oil / water separation tank 50 floats oil lighter than water on the water surface and precipitates various foreign substances heavier than water on the bottom in the oil floating separation chamber 50b. A relatively clean drain water from which oil and various foreign substances are removed is fed into the water storage chamber 50c through the communicating portion at the bottom of the partition plate 50d located between the water storage chambers 50c. It has become.

  Here, when the relatively clean drain water fed into the water storage chamber 50c is accumulated above the pipe end 50g which is the end of the outlet pipe 50f disposed in the water storage chamber 50c, the upper portion of the oil / water separation tank 50 is collected. Is fed into the oil adsorption tank 60 through the outlet pipe 50f, the joint 50i, and the fresh water pipe 171 by the force of the compressed air staying in the tank. In this case, the force of the compressed air assists the movement of the drain water until the drain water is discharged from the fresh water pipe 173 because the oil adsorption tank 60 is in a sealed state.

  In this way, in the oil floating separation chamber 50b formed in the oil / water separation tank 50, most of the oil and various foreign matters separated from the water are separated, but dissolved in the emulsified water. Since the oil is in a state of being dissolved in a relatively clean drain water, the oil is sent to the oil adsorption tank 60 as it is. That is, drain water containing a very small amount of oil that has not been separated and removed in the oil floating separation chamber 50b and emulsified oil is fed into the oil adsorption tank 60.

  First, in the oil adsorbing part 61x formed in the oil adsorbing tank 60, the oil-water separation is performed via the inlet-side front oil adsorbing part 61xx, the flow path 343a of the cap 343, and the inlet-side rear oil adsorbing part 61xy. The oil adsorbent 342 adsorbs a small amount of oil separated from water that could not be removed in the oil / water separation tank 50 other than the emulsified oil in the drain water flowing from the tank 50. Then, in the emulsion breaking oil adsorbing portion 61 y formed in the oil adsorbing tank 60 after passing through the punching plate 331, the oil is compared by contacting the emulsified oil treatment agent 341 with the emulsified oil. The oil is separated from the clean drain water, and the oil that has been separated is further coarsened, and the coarse oil is adsorbed by the oil adsorbent 342 to improve the cleanliness of the relatively clean drain water. It goes.

  In this case, in the emulsion breaking oil adsorbing part 61y, in addition to the emulsified oil treating agent 341 and the oil adsorbing material 342 as necessary, activated carbon for adsorbing and removing pigments and off-flavors is also added and dispersed simultaneously. It is also possible. Finally, in the emulsified oil treatment agent outflow prevention unit 61z formed in the oil adsorption tank 60, the emulsified oil treatment agent 341 flowing out from the emulsion breaking oil adsorbing unit 61y is held by the oil adsorbent 344. The clean drain water is sent out through the space 61a.

  In this way, depending on how dirty the drain water is, such as relatively clean drain water or dirty drain water, the oil adsorption tank 60 is not limited to two as shown in FIG. However, it is also possible to construct a plurality of more groups in series, or to connect them in parallel as shown in FIG.

  To reiterate, in the oil adsorption tank 60, first, relatively clean drain water fed from the fresh water pipes 171 and 172 flows into the oil adsorption tank 60, particularly in the emulsion breaking oil adsorption section 61y. By storing the emulsified oil treating agent 341 that performs emulsion breaking and the oil adsorbing material 342 that adsorbs oil in a substantially uniformly mixed state, the emulsified oil treating agent 341 and the oil adsorbing material 342 are randomly passed through. In the emulsified oil treating agent 341, the emulsion is broken by releasing the relatively clean drain water and the oil in the emulsified oil, and the separated oil is further adsorbed to the oil adsorbing material 342 while being coarsened. By carrying out such a treatment repeatedly at random, the cleanliness of the relatively clean drain water is improved, and then it is fed into the fresh water pipes 172 and 173.

  Further, on the downstream side of the oil adsorption tank 60, an emulsion breaking oil adsorption portion formed on the upstream side thereof is provided by providing an emulsified oil treatment agent outflow prevention portion 61z containing only the oil adsorbent 344. The refined emulsified oil treating agent 341 housed in 61y (sometimes activated carbon intended to adsorb or remove pigments and off-flavors) prevents the water from flowing into the fresh water pipes 172 and 173.

  If the functions of the stored oil adsorbents 342 and 344 deteriorate, it is necessary to replace the oil adsorbents 342 and 344. At that time, it is one way for the customer to obtain and replace the oil adsorbents 342 and 344, the emulsified oil treatment agents 341 and 348, the granules 347 and the activated carbon 346, but from the viewpoint of ensuring quality and function. Also, it is best to send the entire tank 61, 71, 81, 351, 361 to the service base by Takkyubin etc., and perform the replacement process at the service base.

  In addition, regarding the explanation of the operation so far, the oil adsorption tank 60 constituting the oil / water separation apparatus 210 has been mainly described, but the oil adsorption tanks 70, 80, 350 and 360 including the oil / water separation apparatus 220 are described. Are partly described, and a surface similar to the oil / water separator 210 and the oil adsorption tank 60 is also seen, so the details are omitted. However, regarding the oil-water separator 220 in which the oil adsorption tanks 60, 70, 80 are positioned in parallel, it is natural that the same oil adsorption tanks 60, 70, 80 are positioned as seen in FIG. It is also important that the pressure loss after the branch fresh water pipe 175 branches becomes the same value.

(Emulsified oil) (Processed water)
(Color) (Oil concentration) (Color) (Oil concentration) (Treatment amount)
Milky and opaque 100ppm Colorless and transparent 1ppm 3000L
５００ 500ppm ２．５ 2.5ppm 1300L
Ｐｐｍ 3000ppm 〃 4ppm 900L
As a result, it is clear that the treated water has cleared 5 ppm which is the national wastewater standard of the Water Pollution Control Law.
In this case, stearylamine is used as the emulsified oil treatment agent 341, and the packing density of the oil adsorbents 342 and 344 is 130 g / liter. The weight ratio is 1: 3, the size of the emulsified oil treating agent 341 is 0.001 to 1.0 mm, and the size of the oil adsorbent 342 is 5 × 5 × 10 mm. .

  The present invention relates to an oil adsorption tank and a method for replacing an oil treatment material for sewage, and more specifically, an oil treatment material such as an oil adsorption material or an emulsified oil treatment agent is accommodated in the oil adsorption tank. At the time, it describes the technology that if it is stored based on what standard, it can have a higher function and can be maintained for a long period of time, and it is possible to replace the sewage oil adsorption tank and oil treatment material. And is very effective in treating sewage containing emulsified oil.

10 .... Air compressor 11 .... Motor 12 .... Compressor 13 .... Air tank 14 .... Belt 20 ... After cooler 30 .... Dryer 40 ... Air filter 50 ... Oil / water separation tank 50a ... Oil / water separation tank body 50b ... Oil floating separation chamber 50c ... ... Water storage chamber 50d ... Partition plate 50e ... Inlet pipe 50f ... Outlet pipe 50g ... Pipe end 50h ... Fitting 50i ...・ Joint 60... Oil adsorbing tank 61... Tank 61 a.
61xx... Inlet side front oil adsorbing part 61xy... Inlet side rear oil adsorbing part 61y ... emulsion breaking oil adsorbing part (part)
61z: Emulsified oil treatment agent spill prevention part (part)
70... Oil adsorbing tank 71... Tank 71 a.
80... Oil adsorption tank 81... Tank 81 a.
81x: Oil adsorbing part (part)
81y: Emulsion breaking oil adsorbing part (part)
111 Compressed air piping 112 Compressed air piping 113 Compressed air piping 114 Compressed air piping 121 Drain piping 122 Valve 123 ... Drain pipe 124 ... Drain trap 125 ... Drain pipe 131 ... Drain pipe 132 ... Valve 133 ... Drain pipe 134 ... Drain trap 135 ... Drain pipe 141 ... Drain pipe 142 ... Valve 143 ... Drain pipe 144 ... Drain trap 145 ... · Drain piping 151 ··· Drain piping 152 ··· Valve 153 ··· Drain piping 154 ··· Drain trap 155 ··· Drain piping 161 ··· Drain assembly Pipe 162 ... Check valve 63 ... Drain collecting pipe 171 ... Fresh water pipe 172 ... Fresh water pipe 173 ... Fresh water pipe 175 ... Branch fresh water pipe 176 ... Fresh water pipe 177 ... Fresh water pipe 210 ... Oil / water separator 220 ... Oil / water separator 301 ... Tube 302g ... Upper lid 302h ... Lower lid 303 ... ... O-ring 304 ... Bolt 305 ... Nut 310 ... Hose joint 311 ... Fitting body 312 ... Nut 313 ... Sleeve 321 ······························································································································ Perforated plate 332 ..Intermediate porous plate (compression prevention means)
334 .. Holding cylinder (compression prevention means)
341... Emulsified oil treatment agent 342... Oil adsorbent 343... Cap 343 a. Oil adsorbent with treatment agent 346... Activated carbon 347... Granular material 348... Emulsified oil treatment agent 350... Oil adsorption tank 351. .... Space part 351x ... Oil adsorbing part (part)
351y ... Emulsion breaking part (part)
360... Oil adsorption tank 361... Tank 361 a... Space 361 b... Space 361 v.
361y ... Emulsion breaking oil adsorbing part (part)

Claims (7)

  At least the oil adsorbent that adsorbs oil is stored in a tank that prevents fluid from leaking from the inside and allows drain water to pass through, and the packing density when storing the oil adsorbent is 40 to 253 grams / liter. An oil treatment tank characterized by that.   In the tank, by storing only the oil adsorbent and the emulsified oil treatment agent that breaks the oil emulsified in the oil adsorbent, or by storing only the oil adsorbent, The oil processing tank according to claim 1, wherein a part is formed.   In the tank, an oil adsorbent with an emulsified oil treatment agent in which only the oil adsorbent and an emulsified oil treatment agent for breaking the emulsified oil are attached to the oil adsorbent is housed, or the oil adsorbent The oil processing tank according to claim 1, wherein a part is formed by storing the oil adsorbent with the emulsified oil treatment agent in a mixed state.   The oil processing tank according to claim 1, wherein a part is formed in the tank by storing only the oil adsorbing material and a granule added with an emulsified oil processing agent.   The oil processing tank according to any one of claims 1 to 3, wherein the emulsified oil treating agent is an amine compound having a hydrocarbon group having 6 to 60 carbon atoms or a derivative thereof.   Since the function deteriorates when a period in which the fluid flows inside, a tank filled with an oil adsorbent that needs to be replaced and adsorbs a replaceable oil at a packing density of 40 to 253 grams / liter. A method for exchanging an oil treatment material, wherein when the function of the oil adsorbent is reduced, at least the oil adsorbent with a reduced function is replaced with one having a predetermined function and used again.   In the tank, by storing only the oil adsorbent and the emulsified oil treatment agent that breaks the oil emulsified in the oil adsorbent, or by storing only the oil adsorbent, Alternatively, by storing an oil adsorbent with an emulsified oil treatment agent in which only the oil adsorbent and an emulsified oil treatment agent for breaking the emulsified oil are attached to the oil adsorbent, or the oil adsorbent and the emulsified oil 7. The method for replacing an oil treatment material according to claim 6, wherein the oil adsorption material with the treatment agent is stored in a mixed state to have different functions.

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