CN111056667A - Water disinfection processing system - Google Patents
Water disinfection processing system Download PDFInfo
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- CN111056667A CN111056667A CN201911195900.5A CN201911195900A CN111056667A CN 111056667 A CN111056667 A CN 111056667A CN 201911195900 A CN201911195900 A CN 201911195900A CN 111056667 A CN111056667 A CN 111056667A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The application discloses water disinfection processing system includes: the system comprises a pretreatment system for performing primary filtration treatment on raw water, an advanced treatment system for performing adsorption and oxidation treatment on the raw water, and a chlorine dioxide dosing unit and a clean water tank which are respectively used for performing pre-chlorination on water treated by the pretreatment system and post-chlorination on water treated by the advanced treatment system; and the flocculation tank and the sedimentation tank are respectively provided with an overrunning pipe leading to the ozone contact filter column. This application carries out the prefiltering processing through pretreatment systems to the raw water, can realize simplifying partial filtration process through the pipeline that sets up and surmount the pipe and directly access to the advanced treatment system and carry out the advanced treatment to the raw water, adopt chlorine dioxide to add medicine unit and carry out preceding chlorination technology to the raw water system and carry out filtration disinfection, adopt the postchlorination technology to supply chlorine content, reach and quote the water standard, can be used to promptly to handle unable timely water supply behind the water source pollution, lead to appearing the technical problem that the resident cuts off the water supply.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of sewage treatment, in particular to a water disinfection treatment system.
[ background of the invention ]
In recent years, sudden water supply accidents of water supply sources in China frequently occur, serious threats are caused to urban water supply safety, the traditional water works generally do not have emergency treatment capacity for dealing with sudden water supply accidents at present, particularly, water works in villages and towns have single water supply source, effective countermeasures for the sudden water supply pollution are lacked at present, water cannot be supplied in time after the water sources are polluted, and accordingly the condition that residents cut off water is caused, and once the serious sudden water pollution accidents occur, emergency water demands of the residents can be guaranteed.
[ summary of the invention ]
This application will solve present tradition water works and generally do not possess the emergency treatment ability of coping with the unexpected pollution incident in water source, especially the water works in villages and towns, and the water supply water source is more single, and lacks effective coping with unexpected water source pollution countermeasure at present, can't supply water in time after the water source pollutes, leads to the technical problem who appears the condition of resident's disconnected water, provides water disinfection processing system.
In order to solve the technical problem, the method is realized by the following technical scheme:
the present invention provides a water disinfection treatment system, comprising: the system comprises a pretreatment system for performing primary filtration treatment on raw water, an advanced treatment system for performing adsorption and oxidation treatment on the raw water, and a chlorine dioxide dosing unit and a clean water tank which are respectively used for performing pre-chlorination on water treated by the pretreatment system and post-chlorination on water treated by the advanced treatment system;
the pretreatment system comprises: a raw water storage tank, a raw water lift pump, a reaction tank, a flocculation tank, a sedimentation tank, a quartz sand filter column and an intermediate water tank which are communicated with each other are sequentially connected through pipelines;
the raw water storage tank is provided with a raw water inlet pipe for guiding raw water to be treated to enter the reaction tank, a water pressure difference is formed between a water outlet of the raw water storage tank and a water inlet of the reaction tank, so that the water pressure difference of the raw water enters the reaction tank from the raw water storage tank, the bottom of the quartz sand filter column is provided with a quartz sand filter column water outlet which is connected with a drainage pipe and discharges the water, a pipeline communicated with the first intermediate water tank is arranged between the quartz sand filter column water outlet and the drainage pipe, and the intermediate water tank is provided with a plurality of first water outlets for draining water;
the depth processing system comprises: a plurality of ozone contact filtering columns and activated carbon filtering columns which are communicated are sequentially connected through pipelines;
an ozone contact tank lifting pump is arranged on one of the first water outlets, a gas-liquid mixing pump is connected behind the ozone contact tank lifting pump, a first check valve is arranged between the ozone contact tank lift pump and the gas-liquid mixing pump, a water inlet of the gas-liquid mixing pump is connected with a water outlet of the ozone contact tank lift pump, the air inlet of the gas-liquid mixing pump is connected with an ozone generator, the water outlet of the gas-liquid mixing pump is respectively connected with the ozone contact filter column water inlet of each ozone contact filter column, the ozone contact filter column water outlet of each ozone contact filter column is connected with the active carbon filter column water inlet of the active carbon filter column through a pipeline, the activated carbon filter column is also provided with an activated carbon filter column water outlet for draining water, and the activated carbon filter column water outlet is respectively connected with the clear water tank and a drain pipe for draining the water outwards through pipelines;
the chlorine dioxide dosing unit comprises a hydrochloric acid unloading pump, a hydrochloric acid storage tank, a plurality of chlorine dioxide generators, a sodium chlorate dissolver and a sodium chlorate solution storage tank;
the inlet of the hydrochloric acid unloading pump is connected with a container for containing hydrochloric acid raw materials through a pipeline, the outlet of the hydrochloric acid unloading pump is connected with the hydrochloric acid storage tank through a pipeline, the outlet end of the hydrochloric acid storage tank is respectively connected with hydrochloric acid solution inlets arranged on the chlorine dioxide generators through pipelines, the inlet end of the sodium chlorate dissolver is respectively connected with a domestic water pipe and a container for containing sodium chlorate raw materials through pipelines, the sodium chlorate dissolver is provided with a stirring pump, the outlet end of the sodium chlorate dissolver is respectively connected with a sodium chlorate solution inlet arranged on each chlorine dioxide generator through a pipeline, the water outlet of each chlorine dioxide generator is provided with an ejector, each ejector is also provided with a raw water inlet communicated with a raw water pipe through a pipeline, one ejector in the ejectors is communicated with the water inlet of the flocculation tank through a pipeline, another one of the plurality of injectors is communicated with the water inlet of the clean water tank through a pipeline;
and the flocculation tank and the sedimentation tank are respectively provided with an overrunning pipe leading to the ozone contact filter column.
The quartz sand filter column comprises: the device comprises a cylinder body, a cylinder cavity is arranged in the cylinder body, a detachable first filter plate is arranged on the cylinder body, the cylinder cavity is divided into a filtering cavity and a drainage cavity which are arranged up and down by the first filter plate, a bearing layer placed on the first filter plate is arranged at the bottom of the filtering cavity, and a quartz sand filtering layer for filtering is arranged above the bearing layer; the upper part of the column body is provided with a quartz sand filter column water inlet communicated with the filter cavity, the bottom of the column body is provided with a first backwashing air inlet, a first backwashing water inlet and a quartz sand filter column water outlet which are communicated with the drainage cavity, and the first filter plate is provided with a plurality of first filter elements so as to lead water filtered by the quartz sand filter layer into the drainage cavity.
Ozone contact filter column includes the casing, be equipped with inclosed casing cavity in the casing, the bottom of casing is equipped with ozone contact filter column water inlet, be connected with the blow-down pipe on the water inlet, the bottom of casing cavity is equipped with pall ring filler district, the upper portion of casing is equipped with ozone contact filter column delivery port, just the top of ozone contact filter column is equipped with the first tail gas discharge port who is used for discharging reaction back gas.
The activated carbon filter column comprises a filter column body, a body cavity is arranged in the filter column body, a detachable second filter plate is arranged on the body cavity, the body cavity is divided into a water filtering cavity and a water outlet cavity which are arranged up and down by the second filter plate, a sand cushion layer placed on the second filter plate is arranged at the bottom of the water filtering cavity, an activated carbon filter layer used for filtering is arranged above the sand cushion layer, an activated carbon filter column water inlet communicated with the water filtering cavity is arranged at the upper part of the activated carbon filter column body, and a second tail gas discharge port used for discharging filtered gas is further arranged at the top of the activated carbon filter column body; the bottom of the active carbon filter column body is provided with a second backwashing air inlet, a second backwashing water inlet and an active carbon filter column water outlet which are communicated with the water outlet cavity, and the first filter plate is provided with a plurality of second filter elements so as to lead water filtered by the active carbon filter layer into the water outlet cavity.
The backwashing system comprises an air compressor, an air storage tank and a first backwashing pump, an air outlet of the air compressor is connected with the air storage tank through an air pipe, an air outlet of the air storage tank is respectively communicated with the quartz sand filter column and the active carbon filter column, an air inlet of the first backwashing pump is connected with the clean water tank through a pipeline, and an air outlet of the first backwashing pump is connected with the active carbon filter column through a pipeline;
the backwashing system further comprises a second backwashing pump arranged on one of the first water outlets, the water outlet of the second backwashing pump is communicated with the quartz sand filter column through a pipeline, and a second check valve is arranged on the pipeline.
The pipeline between the hydrochloric acid unloading pump and the hydrochloric acid storage tank is sequentially connected with a reducing pipe for adjusting the caliber of the pipe orifice, a sight glass for observing the flow direction of the hydrochloric acid raw material and a third check valve for preventing the hydrochloric acid raw material from flowing back.
Each pipeline is provided with a control valve for controlling opening and closing, and the control valve is one of a butterfly valve, a plug valve, a gate valve and a ball valve.
The sedimentation tank comprises a water distribution area and an inclined tube sedimentation area which are arranged on the left and right sides, the water distribution area is communicated with the flocculation tank through a pipeline, a single-row mud bucket is arranged at the bottom of the inclined tube sedimentation area, an inclined tube sedimentation device for filtering is arranged in the middle of the inclined tube sedimentation area, a third baffle is arranged between the water distribution area and the inclined tube sedimentation area, a plurality of through holes for throttling are formed in the bottom of the third baffle, the included angle between the third baffle and the horizontal plane is 60 degrees, a water collection overflow groove is further formed in the right side of the inclined tube sedimentation area, and the water collection overflow groove is communicated with the quartz sand filter column through a pipeline.
A mixing reactor for stirring is arranged in the reaction tank, the mixing reactor comprises a rotating motor, an output shaft of the rotating motor is provided with a rotating shaft, the rotating shaft extends into the reaction zone, the bottom of the rotating shaft is provided with a stirrer, and the stirrer is a double-blade impeller; and a first pipeline communicated with the first flocculation tank is arranged at the bottom of the reaction tank.
The flocculation tank comprises a first flocculation tank and a second flocculation tank which are communicated through a pipeline, and a first reaction stirrer and a second reaction stirrer for accelerating stirring are respectively arranged in the first flocculation tank and the second flocculation tank;
the first reaction stirrer comprises a first rotating motor, a first rotating shaft arranged on an output shaft of the first rotating motor and a plurality of first impeller paddles arranged on the first rotating shaft, the first rotating shaft extends into the first flocculation tank, the first impeller paddles are arranged at intervals up and down, first baffles are arranged on four inner side surfaces of the first flocculation tank, and a second pipeline and a third pipeline which are used for being communicated with the second flocculation area are further arranged at the upper part of the first flocculation tank;
still be equipped with the second reaction agitator that is used for the stirring in the second flocculation basin, the second reaction agitator includes the second and rotates the motor, locates second rotation axis on the output shaft of second rotation motor, and locate a plurality of second impeller paddles in the second rotation axis, the second rotation axis stretches into in the second flocculation basin, the interval sets up from top to bottom between the second impeller paddle, all be equipped with the second baffle on four medial surfaces in second flocculation basin, the bottom in second flocculation basin still be equipped with be used for with fourth pipeline and the fifth pipeline of sedimentation tank intercommunication.
Compared with the prior art, the application has the following advantages:
based on the technical scheme, the embodiment of the invention designs the pretreatment system to carry out primary filtration treatment on the raw water, can simplify part of the filtration process through the arranged pipeline and the overtaking pipe and directly lead to the advanced treatment system to carry out advanced treatment on the raw water, can remove the pollutants such as chromaticity, bacteria, partial soluble salt, partial organic matters and the like in the raw water, can be used as emergency identification after water source pollution, adopts the chlorine dioxide dosing unit to carry out pre-chlorination process on the raw water system for filtration and disinfection, adopts the post-chlorination process to supplement the chlorine content to reach the water reference standard, and realizes the movable characteristic of the system through the detachable quartz sand filter column, the ozone contact filter column, the raw water storage tank, the active carbon filter column, the hydrochloric acid discharge pump, the hydrochloric acid storage tank, a plurality of chlorine dioxide generators, the sodium chlorate dissolver, the sodium chlorate solution storage tank and the like, the system has the advantages of compact equipment structure, high automation degree, good water outlet quality, stable and reliable operation effect, convenient disassembly, movable function and no discharge of any pollutant, solves the technical problems that the prior water plant belongs to the water plant in the villages and the towns, has single water supply source, is lack of effective coping measures for sudden water source pollution, cannot supply water in time after the water source pollution and leads to the water cut-off of residents.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a chlorine dioxide dosing unit of the water disinfection treatment system of the present application.
FIG. 2 is a schematic view of a pretreatment system of the water disinfection treatment system of the present application.
FIG. 3 is a schematic view of an advanced treatment system of the present water disinfection treatment system.
FIG. 4 is a schematic view of an ozone generator of the water disinfecting treatment system of the present application.
FIG. 5 is a cross-sectional view of a quartz sand filter column of the water disinfection treatment system of the present application.
Figure 6 is a cross-sectional view of an ozone contact filter cartridge of the water disinfecting treatment system of the present application.
FIG. 7 is a cross-sectional view of an activated carbon filter column of the water disinfection treatment system of the present application.
FIG. 8 is a cross-sectional view of a portion of the water disinfection treatment system of the present application.
Fig. 9 is a sectional view taken in the direction of a-a in fig. 8.
FIG. 10 is a schematic view of the water disinfection treatment system of the present application.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.
Referring to fig. 1 to 10, the present example provides a pretreatment system 10 for performing a primary filtration treatment on raw water, an advanced treatment system 20 for performing adsorption and oxidation treatment on raw water, and a chlorine dioxide dosing unit 30 and a clean water tank 40 for pre-chlorinating water treated by the pretreatment system 10 and post-chlorinating water treated by the advanced treatment system 20, respectively; the pretreatment system 10 includes: the raw water storage tank 110, the reaction tank 130, the flocculation tank 140, the sedimentation tank 150, the quartz sand filter column 160 and the intermediate water tank 120 are sequentially connected and communicated through pipelines; a raw water inlet pipe for guiding raw water to be treated to enter the reaction tank 130 is arranged on the raw water storage tank 110, a water pressure difference is formed between a water outlet of the raw water storage tank 110 and a water inlet of the reaction tank 130, so that the raw water enters the reaction tank 130 from the raw water storage tank 110, a quartz sand filter column water outlet 1690 for connecting a drainage pipe to discharge water outside is arranged at the bottom of the quartz sand filter column 160, a pipeline communicated with the first intermediate water tank 120 is further arranged between the quartz sand filter column water outlet 1690 and the drainage pipe, and a plurality of first water outlets 1210 for draining water are arranged on the intermediate water tank 120; the depth processing system 20 comprises: a plurality of ozone contact filter columns 210 and activated carbon filter columns 220 which are communicated with each other are sequentially connected through a pipeline; a plurality of first delivery port 1710 is provided with ozone contact tank lift pump 230 on first delivery port 1710, be connected with gas-liquid mixture pump 240 behind the ozone contact tank lift pump 230, just ozone contact tank lift pump 230 with be equipped with first check valve 250 between the gas-liquid mixture pump 240, the water inlet of gas-liquid mixture pump 240 with the delivery port of ozone contact tank lift pump 230 is connected, the air inlet of gas-liquid mixture pump 240 is connected with ozone generator 50, the delivery port of gas-liquid mixture pump 240 is connected respectively each ozone contact filter column 210's ozone contact filter column water inlet 2160, each ozone contact filter column 210's ozone contact filter column water outlet 2170 is connected to activated carbon filter column water inlet 2211 of activated carbon filter column 220 through the pipeline, still be equipped with activated carbon filter column delivery port 2212 that is used for the drainage on the activated carbon filter column 220, activated carbon filter column delivery port 2 respectively with clear water tank 22140 and the drain pipe that discharges water through the pipeline connection Connecting; the chlorine dioxide dosing unit 30 comprises a hydrochloric acid unloading pump 310, a hydrochloric acid storage tank 320, a plurality of chlorine dioxide generators 330, a sodium chlorate dissolver 340 and a sodium chlorate solution storage tank 350; the inlet of the hydrochloric acid unloading pump 310 is connected with a container for containing hydrochloric acid raw materials through a pipeline, the outlet of the hydrochloric acid unloading pump 310 is connected with the hydrochloric acid storage tank 320 through a pipeline, the outlet of the hydrochloric acid storage tank 320 is respectively connected with the hydrochloric acid solution inlet arranged on each chlorine dioxide generator 330 through a pipeline, the inlet of the sodium chlorate device 340 is respectively connected with a domestic water pipe and a container for containing sodium chlorate raw materials through a pipeline, a stirring pump is arranged on the sodium chlorate device 340, the outlet of the sodium chlorate device 340 is respectively connected with the sodium chlorate solution inlet arranged on each chlorine dioxide generator 330 through a pipeline, the water outlet of each chlorine dioxide generator 330 is provided with an ejector 360, each ejector 360 is also provided with a raw water inlet communicated with a raw water pipe through a pipeline, one ejector 360 in the plurality of ejectors 360 is communicated with the water inlet of the flocculation tank 140 through a pipeline, another one of the injectors 360 of the plurality of injectors 360 communicates with the water inlet of the clean water tank 40 through a pipe; wherein, the flocculation tank 140 and the sedimentation tank 150 are respectively provided with an overrunning pipe leading to the ozone contact filter column 210. The invention carries out primary filtration treatment on raw water by designing a pretreatment system 10, can simplify part of the filtration process through a set pipeline and an overtaking pipe and directly leads to an advanced treatment system 20 to carry out advanced treatment on the raw water, can remove the chroma, bacteria, partial soluble salt, partial organic matters and other pollutants in the raw water, can be used as emergency identification after water source pollution, adopts a chlorine dioxide dosing unit 30 to carry out pre-chlorination process on the raw water system for filtration and disinfection, adopts a post-chlorination process to supplement the chlorine content to reach the water reference standard, and realizes the movable characteristic of the system through a detachable quartz sand filter column 160, an ozone contact filter column 210, a raw water storage tank 110, an active carbon filter column 220, a hydrochloric acid discharge pump 310, a hydrochloric acid storage tank 320, a plurality of chlorine dioxide generators 330, a sodium chlorate dissolver 340 and a sodium chlorate solution storage tank 350, the system has the advantages of compact equipment structure, high automation degree, good water outlet quality, stable and reliable operation effect, convenient disassembly, movable function and no discharge of any pollutant, solves the technical problems that the prior water plant belongs to the water plant in the villages and the towns, has single water supply source, is lack of effective coping measures for sudden water source pollution, cannot supply water in time after the water source pollution and leads to the water cut-off of residents.
The combination of various processes is realized through the control valves arranged on the pipelines and the surpassing pipes, so that the flocculated effluent or the settled effluent directly enters the advanced treatment process. Specific possible implementations are: 1. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 160, and is subjected to a chlorination process before the chlorine dioxide dosing unit 30 is subjected to the flocculation tank 140, the water filtered by the quartz sand filter column 160 is conveyed to the clean water tank 40, is subjected to a chlorination process after the clean water tank 40 is subjected to chlorination process, and is discharged as drinking water for residents after the water in the clean water tank 40 is detected to reach the standard; 2. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140, the sedimentation tank 150 and the quartz sand filter column 1 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, the chlorine dioxide dosing unit 30 performs a pre-chlorination process on the flocculation tank 140, the filtered water in the activated carbon filter column 220 is conveyed to the clean water tank 40 and performs a post-chlorination process on the clean water tank 40, and after the water detection in the clean water tank 40 reaches the standard, the outlet water is used as drinking water for residents; 3. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130, the flocculation tank 140 and the sedimentation tank 150 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, and after the filtered water reaches the standard, the outlet water is used as drinking water for residents; 4. raw water enters the raw water storage tank 110, is filtered by the reaction tank 130 and the flocculation tank 140 and then is conveyed to the advanced treatment system 20 for treatment, is filtered by the ozone contact filter column 210 and the activated carbon filter column 220, and after the filtered water reaches the standard, the outlet water is used as drinking water for residents.
The silica sand filter column 160 includes: the device comprises a cylinder 1610, wherein a cylinder cavity 1620 is arranged in the cylinder 1610, a detachable first filter plate 1630 is arranged on the cylinder 1610, the cylinder cavity 1620 is divided into a filtering cavity 1621 and a drainage cavity 1622 which are arranged up and down by the first filter plate 1630, a bearing layer 1640 is arranged at the bottom of the filtering cavity 1621 and is placed on the first filter plate 1630, and a quartz sand filtering layer 1650 for filtering is arranged above the bearing layer 1640; the upper portion of cylinder 1610 be equipped with the communicating quartz sand filter column water inlet 1660 of filter cavity 1621, the bottom of cylinder 1610 is equipped with first back flush air inlet 1670, first back flush water inlet 1680 and the quartz sand filter column delivery port 1690 of drainage cavity 1622 intercommunication, be equipped with a plurality of first filter element 1631 on the first filter plate 1630 to will pass through water after the quartz sand filter layer 1650 filters lets in the drainage cavity 1622. The quartz sand filter layer 1650 adopts the particle size of
The quartz sand fill, fill height is 750mm moreover, quartz sand filter layer 1650 can effectually hold back suspended solid, organic matter, colloidal particle, microorganism, chlorine, smell flavor and partial heavy metal ion etc. of detaching aquatic, finally reaches and reduces water turbidity, purification quality of water effect.
The ozone contact filter column 210 comprises a housing 2110, a closed housing cavity 2120 is arranged in the housing 2110, a water inlet 2160 of the ozone contact filter column is arranged at the bottom of the housing 2110, a vent pipe 2130 is connected to the water inlet, a pall ring packing area 2140 is arranged at the bottom of the housing cavity 2120, a water outlet 2170 of the ozone contact filter column is arranged at the upper part of the housing 2110, and a first exhaust gas discharge port 2150 for discharging reacted gas is arranged at the top of the ozone contact filter column 210. The ozone contact filter column 210 is used for sterilizing bacteria in raw water, strong oxidation is carried out on the bacteria and pathogens in waste water through ozone, and the pall ring packing area 2140 is internally provided with a material adopting the mode of
The pall ring packing has the height of 300mm, has the advantages of large flux, small resistance, high separation efficiency, large operation elasticity and the like, and the treatment capacity can be more than 50 percent of that of the Raschig ring under the same pressure reduction. When the treatment capacity is the same, the pressure reduction can be reduced by half, the mass transfer efficiency can be improved by about 20 percent, and the reaction rate of raw water and ozone is improved.
The activated carbon filter column 220 comprises a filter column body 2210, wherein a body cavity 2220 is arranged in the filter column body 2210, a detachable second filter plate 2230 is arranged on the body cavity 2220, the body cavity 2220 is divided into a water filtering cavity 2221 and a water outlet cavity 2222 which are arranged up and down by the second filter plate 2230, a sand cushion layer 2240 which is placed on the second filter plate 2230 is arranged at the bottom of the water filtering cavity 2221, and the activated carbon filter column 220 comprises a filter column body 2210, wherein a body cavity 2220 is arranged in the filter column body 2210An active carbon filter layer 2250 for filtering is arranged above the sand cushion layer 2240, an active carbon filter column water inlet 2211 communicated with the water filtering cavity 2221 is arranged at the upper part of the active carbon filter column body 2210, and a second tail gas discharge port 2260 for discharging filtered gas is further arranged at the top of the active carbon filter column body 2210; the bottom of the activated carbon filter column body 2210 is provided with a second back-washing air inlet 2270, a second back-washing water inlet 2280 and an activated carbon filter column water outlet 2212 which are communicated with the water outlet cavity 2222, and the first filter plate 1630 is provided with a plurality of second filter elements 2231 so as to introduce the water filtered by the activated carbon filter layer 2250 into the water outlet cavity 2222. The second filter sheet 2230 is an organic glass filter sheet, the second filter element 2231 is a filter head with a long handle, and has a good filtering function, and the active carbon filter layer 2250 adopts a particle size of
The biological carbon is filled, the filling height is 600mm, and the sand cushion layer 2240 adopts the particle size of
The filling height of the quartz sand is 200mm, and the activated carbon has the advantages of high adsorption speed, high purification degree, difficult powder removal and long service life, and can effectively remove harmful substances such as odor, chlorine, cyanogen and various heavy metal ions and decolor. Has effects of purifying water, removing odor and odor, and improving water purity. The method has the advantages that various impurities in water such as chlorine, phenol, arsenic, lead, cyanide, pesticides and other harmful substances are removed, the content of bromate is controlled, quartz sand is used for filtering the activated carbon or suspended matters attached to raw water, the cleanliness of the raw water is kept, and large particles are avoided.
The backwashing system comprises an air compressor 610, an air storage tank 620 and a first backwashing pump 630, wherein an air outlet of the air compressor 610 is connected with the air storage tank 620 through an air pipe, an air outlet of the air storage tank 620 is respectively communicated with the quartz sand filter column 160 and the active carbon filter column 220, an air inlet of the first backwashing pump 630 is connected with the clean water tank 40 through a pipeline, and an air outlet of the first backwashing pump is connected with the active carbon filter column 220 through a pipeline; the backwashing system further comprises a second backwashing pump 710 arranged on one of the first water outlets 1210, the water outlet of the second backwashing pump 710 is communicated with the quartz sand filter column 160 through a pipeline, and a second check valve 720 is arranged on the pipeline. The air compressor 610 compresses air and then conveys the compressed air to the air storage tank 620 through a pipeline, an air outlet which is respectively connected with the quartz sand filter column 160 and the activated carbon filter column 220 through pipelines is arranged on the air storage tank 620, the compressed air blows particles and suspended matters attached to the quartz sand filter layer 1650 and the activated carbon filter layer 2250, and the first backwashing pump 630 pumps water in the clean water tank 40 back to the activated carbon filter column 220 for backwashing, so that the number of repeated use is increased, and the cost is saved; a second backwashing pump 710 is arranged between the first water outlet 1710 and the quartz sand filter column 160, the second backwashing pump 710 pumps water in the first intermediate water tank 170 to the quartz sand filter column 160, and high-pressure air conveyed to the quartz sand filter column 160 by the gas storage tank 720 is matched to perform backwashing on a quartz sand filter layer 1650 in the quartz sand filter column 160, so that the number of times of reuse is increased, the cost is saved, and the second check valve 720 avoids the problem of uncleanness caused by backflow of water conveyed by the second backwashing pump 710.
The pipeline between the hydrochloric acid discharging pump 310 and the hydrochloric acid storage tank 320 is sequentially connected with a reducing pipe 370 for adjusting the caliber of the pipe orifice, a sight glass 380 for observing the flow direction of the hydrochloric acid raw material, and a third check valve 390 for preventing the hydrochloric acid raw material from flowing back. The reducing pipe 370 is convenient to communicate with the pipeline and the sight glass 380, and since the hydrochloric acid solution has strong corrosivity, in order to avoid the problem that the hydrochloric acid solution flows back when the inlet end of the hydrochloric acid unloading pump 310 is empty, the third check valve 390 is arranged, and the flow direction of the hydrochloric acid solution is observed through the sight glass 380, so that the on-off control is convenient.
Each pipeline is provided with a control valve for controlling opening and closing, and the control valve is one of a butterfly valve, a plug valve, a gate valve and a ball valve. The pipeline is provided with a control valve for controlling the flowing direction of water in the system to realize the switching among ultrafiltration, nanofiltration, active carbon filtration and ozone filtration.
The bottoms of the raw water storage tank 110, the reaction tank 130, the flocculation tank 140, the sedimentation tank 150, the quartz sand filter column 160, the ozone contact filter column 210, the activated carbon filter column 220, the ozone generator 50 and the gas storage tank 620 are all connected with a sewage pipe network 80 leading to a plant area for discharging backwashing wastewater and filtered wastewater; the middle water tank 120, the quartz sand filter column 160, the activated carbon filter column 220 and the clean water tank 40 are further provided with a drain pipe 90 for supplying water to the outside.
The sedimentation tank 150 comprises a water distribution area 1510 and an inclined tube sedimentation area 1520 which are arranged on the left and right, the water distribution area 1510 is communicated with the flocculation tank 140 through a pipeline, a single-row mud bucket 1521 is arranged at the bottom of the inclined tube sedimentation area 1520, an inclined tube sedimentation device 1522 for filtering is arranged in the middle of the inclined tube sedimentation area 1520, a third baffle 1523 is arranged between the water distribution area 1510 and the inclined tube sedimentation area 1520, a plurality of through holes 1524 for throttling are arranged at the bottom of the third baffle 1523, the included angle between the third baffle 1523 and the horizontal plane is 60 degrees, a water collection overflow groove 1530 is further arranged on the right side of the inclined tube sedimentation area 1520, and the water collection overflow groove 1530 is communicated with the quartz sand filter column 160 through a pipeline. A water distribution area 1510 is arranged between the inclined tube settling area 1520 and the second flocculation tank 1420 and is used for buffering water flow between the second flocculation tank 1420 and the inclined tube settling area 1520, meanwhile, a third baffle 1523 is arranged between the water distribution area 1510 and the inclined tube settling area 1520, an included angle between the third baffle 1523 and the horizontal plane is 60 degrees, the third baffle 1523 faces the second flocculation tank 1420, a plurality of through holes 1524 are further arranged on the third baffle 1523, water discharged from the through holes 1524 faces the inclined tube settling device 1522, the water flowing into the water distribution area 1510 is prevented from impacting a single-row sludge bucket 1521, the sedimentation of sludge in the sludge bucket is influenced, and the problem that the sedimentation treatment effect is not ideal is solved; the third baffle 1523 is provided with 18 through holes 1524, the through holes 1524 are arranged in an upper row and a lower row, the number of the through holes 1524 in any row is 8, the diameter of each through hole 1524 is 3cm, and the through holes 1524 arranged in the upper row and the lower row are spaced by 4 cm. The third baffle 1523 is used for isolating the water distribution area 1510 from the inclined tube settling area 1520, and the through holes 1524 are used for controlling the water outlet rate, so that the situation that the sediment settled in the single-row mud bucket 1521 cannot be accumulated due to overlarge water flow is avoided; the pipe chute deposits the device 1522 and comprises a plurality of interconnect's pipe chute, the hexagonal honeycomb pipe that the pipe chute was formed for adopting the plastics suppression, has more mouth of pipe, can realize porous drainage, because the water in the pipe chute deposit district 1520 is carried to from bottom to top in the overflow launder 170 catchments, consequently silt in the pipe chute deposit district 1520 can collide with pipe chute deposits the device 1522 when water flows, and sink to through the wall of pipe chute deposits the device 1522 and the single row mud fill 1521 is discharged, the sedimentation tank 150 is used for doing the fourth filtration to the raw water.
A mixing reactor 1310 for stirring is arranged in the reaction tank 130, the mixing reactor 1310 comprises a rotating motor 1311, an output shaft of the rotating motor 1311 is provided with a rotating shaft 1312, the rotating shaft 1312 extends into the reaction zone 130, the bottom of the rotating shaft 1312 is provided with a stirrer 1313, and the stirrer 1313 is a double-blade impeller; the bottom of the reaction tank 130 is provided with a first pipeline 1320 communicated with the first flocculation tank 140. When agitator 1310 stirs, the silt of aquatic is followed agitator 1310 is rotatory the back downward sediment extremely locate in the first bagger 180 of reaction tank 130 bottom, improved the efficiency of clearance aquatic silt, first pipeline 1320 be used for with the water after first stirring in the reaction tank 130 lets in first flocculation basin 141 carries out the secondary sedimentation, reaction tank 130 is used for doing the primary filtration to the raw water.
The flocculation tank 140 comprises a first flocculation tank 1410 and a second flocculation tank 1420 which are communicated through a pipeline, and a first reaction stirrer 1411 and a second reaction stirrer 1421 for accelerating stirring are respectively arranged in the first flocculation tank 1410 and the second flocculation tank 1420; the first reaction stirrer 1411 comprises a first rotating motor 1412, a first rotating shaft 1413 arranged on an output shaft of the first rotating motor 1412, and a plurality of first impeller paddles 1414 arranged on the first rotating shaft 1413, wherein the first rotating shaft 1413 extends into the first flocculation tank 1410, the first impeller paddles 1414 are arranged at intervals up and down, first baffles 1415 are arranged on four inner side surfaces of the first flocculation tank 1410, and a second pipeline 1416 and a third pipeline 1417 for communicating with the second flocculation area 1420 are further arranged on the upper portion of the first flocculation tank 1410; a second reaction stirrer 1421 for stirring is further arranged in the second flocculation tank 1420, the second reaction stirrer 1421 includes a second rotating motor 1422, a second rotating shaft 1423 arranged on an output shaft of the second rotating motor 1422, and a plurality of second impeller paddles 1424 arranged on the second rotating shaft 1423, the second rotating shaft 1425 extends into the second flocculation tank 1420, the second impeller paddles 1424 are arranged at intervals from top to bottom, second baffles 1425 are arranged on four inner side surfaces of the second flocculation tank 1420, and a fourth pipeline 1426 and a fifth pipeline 1427 for communicating with the sedimentation tank 150 are further arranged at the bottom of the second flocculation tank 1420. When the first reaction stirrer 1411 is used for stirring, silt in water moves and collides with the first baffle 1415, the silt is precipitated downwards into the second mud bucket 190 arranged at the bottom of the first flocculation tank 1410 through the path of the first baffle 1415, the second pipeline 1416 and the third pipeline 1417 are used for conveying the water subjected to stirring and precipitation to the second flocculation tank 1420, and the first reaction stirrer 1411 is provided with the two first impeller paddles 1413 which are arranged at intervals up and down, so that a better stirring and precipitation effect is achieved, a larger stirring range is achieved, and the stirring and precipitation efficiency is improved; when second reaction agitator 1421 stirs, the silt motion of aquatic and with second baffle 1425 collides, and the route that silt passes through second baffle 1425 is precipitated downwards to locate in the second hopper 190 of second flocculation basin 1420 bottom, fourth pipeline 1426 and fifth pipeline 1427 are used for sending the water after the stirring is depositd to sedimentation tank 160, set up two in this embodiment second impeller paddle 1424, and the interval sets up from top to bottom, have better stirring sedimentation effect, have improved the efficiency of stirring sediment, first flocculation basin 1410 and second flocculation basin 1420 are used for being the second and the third filtration to the raw water respectively.
As described above, the embodiments of the present application have been described in detail, but the present application is not limited to the above embodiments. Even if various changes are made in the present application, the protection scope of the present application is still included.
Claims (10)
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| CN201911195900.5A CN111056667A (en) | 2019-11-28 | 2019-11-28 | Water disinfection processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118929832A (en) * | 2024-08-19 | 2024-11-12 | 中冶华天工程技术有限公司 | A method and device for extending the operation cycle of an adsorption defluorination system |
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