CN108439700B - Membrane filter-containing water circulation purification device for cultivation - Google Patents

Membrane filter-containing water circulation purification device for cultivation Download PDF

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CN108439700B
CN108439700B CN201810218283.5A CN201810218283A CN108439700B CN 108439700 B CN108439700 B CN 108439700B CN 201810218283 A CN201810218283 A CN 201810218283A CN 108439700 B CN108439700 B CN 108439700B
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water
pipe
membrane filter
equipment
water outlet
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CN108439700A (en
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牛晓君
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South China University of Technology SCUT
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South China University of Technology SCUT
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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
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/007—Modular design
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • 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
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a circulating purification device for aquaculture water containing a membrane filter, which mainly comprises a clean water tank, an aquaculture water tank, a waste residue tank, the membrane filter, UV (ultraviolet) illumination sterilization equipment, dosing equipment, a controller, a water inlet pipe, a siphon, a first valve, a second valve, a third valve, a back flushing pipe, a lift pump, a blow-off pipe, a water outlet pipe and a water quality PH (potential of Hydrogen) regulator, wherein the clean water tank, the aquaculture water tank and the waste residue tank are sequentially and horizontally arranged, the dosing equipment is arranged in the aquaculture water tank, and the controller is respectively connected with the membrane filter, the UV illumination sterilization equipment and the dosing equipment; the invention realizes the purification and recycling of the culture water through three-layer treatment, has low cost after all, and can work in semi-automation. This device can realize breeding the purification cycle recycle of water, belongs to the quality of water purification technical field of breeding the water.

Description

Membrane filter-containing water circulation purification device for cultivation
Technical Field
The invention relates to the technical field of water quality purification of aquaculture water, in particular to a membrane filter-containing aquaculture water circulation purification device.
Background
At present, the total culture quantity and consumption of livestock and poultry in China are at the top of the world, the aquaculture yield in China is continuously rising, but the aquaculture in China is at the cost of consuming a large amount of resources and sacrificing environmental benefits, the water pollution is serious, and the economic loss and the environmental pollution caused by the deterioration of water quality are very serious. In order to save water resources and energy, the development direction of aquatic product cultivation is to adopt circulating water for cultivation.
Industrialized culture is generally considered to be an effective way for solving environmental pollution and improving product quality. The breeding enterprises also hope to realize sustainable development by developing industrialized breeding, especially to meet the requirements of global open markets and further reduce the production cost. The existing industrial culture in China basically adopts open flow production and is in the primary stage of industrial culture. The problems of old and crude facilities, immature production process, low production rate, poor production stability, frequent diseases in the culture process, serious pollution to culture production environment, reduced quality of cultured products and the like generally exist. The method is characterized in that the water consumption is too large, the pretreatment of water quality is simple, the yield is difficult to improve, most breeding units do not set post-treatment, and breeding wastewater is directly discharged, thereby causing regional pollution and endangering the lasting survival of enterprises. Therefore, the way of closed circulating water industrial cultivation is taken from the global aspects of environment protection and continuous resource utilization, the current production situation is changed, the uncoordinated relation between cultivation production and environment protection is thoroughly improved, and the best way is to be taken.
The biological aquaculture water circulation purification equipment is an effective technical means for reducing agricultural water pollution, and is an important way for realizing healthy, safe, efficient and environment-friendly sustainable development of the aquaculture industry. However, at present, the technical level of water treatment facilities in the aquaculture industry in China is low, the equipment is simple and crude, most of the water treatment facilities only stay at the stages of simple precipitation, filtration, air floatation and disinfection, no high-efficiency treatment facilities exist, and the circulating water aquaculture cannot be realized.
The circulating water purification equipment establishes an aquatic ecological self-purification capacity system on the basis of the natural water purification principle, and adopts the biochemical filtration technology to control the water quality change, so that the aquaculture sewage is recycled after being treated, the sewage discharge in the aquaculture process is reduced, and the green ecological aquaculture is realized.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: provided is a membrane filter-containing water circulation purification device for aquaculture, which can realize the purification and recycling of aquaculture water.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water circulation purification device containing a membrane filter for cultivation comprises a clean water tank, a water tank for cultivation, a waste residue tank, the membrane filter, UV (ultraviolet) illumination sterilization equipment, dosing equipment, a water inlet pipe, a siphon device, a blow-off pipe, a water outlet pipe and a water quality PH regulator; the dosing equipment is arranged at the position of the culture water pool, and a culture water outlet is formed in the bottom of the side surface of the culture water pool;
the membrane filter comprises an upper shell and a lower shell which are arranged together, a filtering area and a clear water area are formed in an inner space defined by the upper shell and the lower shell, a filter bag, a porous plate and a microorganism treatment layer are sequentially arranged between the filtering area and the clear water area, and a filter element is arranged in the porous plate; the inner wall of the lower shell is provided with a pressure difference device, the bottom of the lower shell is provided with a sewage discharge outlet, the side surface of the lower shell is provided with a water inlet, and the side surface of the upper shell is provided with a water outlet;
one end of the water inlet pipe is connected with the culture water outlet, the other end of the water inlet pipe is connected with the siphon, the siphon is connected to the water inlet of the lower shell through a pipeline, and the drain pipe above the waste residue pool is connected to the drain outlet of the lower shell;
one end of the water outlet pipe is connected to the water outlet of the upper shell, and the other end of the water outlet pipe is connected to the water inlet of the UV light sterilization equipment; the water quality PH regulator is connected with the UV illumination sterilization equipment;
the UV illumination sterilization equipment comprises a lamp tube, a water inlet pipe, a water outlet pipe and an end cover; the lamp tube is positioned inside the UV illumination sterilization equipment, the water inlet pipe is positioned in the UV illumination sterilization equipment and is connected with the water outlet pipe, one end of the water outlet pipe is positioned in the UV illumination sterilization equipment, the other end of the water outlet pipe extends into the clean water tank, and the end cover is positioned above the UV illumination sterilization equipment;
the dosing device comprises a motor, a dosing tank, a dosing pipe, a support and an impeller, wherein the dosing tank is arranged at the output end of the motor, the support is connected with the dosing tank, the dosing pipe is positioned in the support, the impeller is arranged at the lower end of the support, and the impeller is positioned in the culture water tank.
Further, the method comprises the following steps: the purification device also comprises a controller, a first valve, a second valve and a third valve; the differential pressure equipment, the dosing equipment and the water quality PH regulator in the membrane filter are in signal connection with the controller; the first valve is arranged on a pipeline between the siphon device and the water inlet of the lower shell, the second valve is arranged on the sewage discharge pipe, and the third valve is arranged on the water outlet pipe.
Further, the method comprises the following steps: purifier still includes backwash water pipe and elevator pump, and the delivery port of pipe connection to the epitheca is passed through to the one end of elevator pump, and the other end of elevator pump is connected to the drain pipe through backwash water pipe.
Further, the method comprises the following steps: the UV light sterilization equipment also comprises a power supply, and the power supply is positioned in a space formed by the end cover and the UV light sterilization equipment.
Further, the method comprises the following steps: the feeding box 602 is internally provided with an LX181 corrosion and scale inhibitor, an LX301 non-oxidizing biocide and an LX401 non-oxidizing biocide.
Further, the method comprises the following steps: the filter bag is made by compounding a bulked polytetrafluoroethylene film with the aperture of 0.5 mu m, and 2-3 mm polypropylene and polyester non-woven fabrics.
Further, the method comprises the following steps: the microorganism treatment layer adopts microorganism preparations of photosynthetic bacteria, bacillus, EM bacteria or nitrobacteria.
When breeding the pond internal water and need purifying, carry out the primary treatment through controller control medicine equipment to the breed water of breeding in the pond, then open first valve, the membrane type filter is sent into with the breed water of primary treatment in siphon ware work, and rethread controller control membrane type filter work is carried out further filtration treatment to breeding water, handles the back again and handles and carry out sterilization treatment with UV illumination sterilizing equipment through quality of water PH value regulator, sends into the clean water basin at last and realizes cyclic utilization.
In summary, the present invention has the following advantages:
the device is applied to the circulating purification treatment of the aquaculture water, firstly, the LX181 corrosion and scale inhibitor, the LX301 non-oxidizing biocide and the LX401 non-oxidizing biocide are added into the aquaculture water through the dosing equipment for primary treatment, then, the water is filtered through the membrane filter, finally, the purification and cyclic utilization of the aquaculture water are realized through three-layer treatment through the UV illumination sterilization equipment, and the semi-automatic operation is realized by adopting the controller to control the device.
Drawings
Fig. 1 is a schematic view of the purification apparatus.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
To facilitate a uniform view of the various reference numbers within the drawings, reference numbers appearing in the drawings are now described collectively as follows:
1-clean water tank, 2-water tank for cultivation, 3-waste residue tank, 4-membrane filter, 5-UV light sterilization equipment, 6-dosing equipment, 7-controller, 8-water inlet pipe, 9-siphon, 10-first valve, 11-second valve, 12-third valve, 13-backwashing pipe, 14-lift pump, 15-blow-off pipe, 16-water outlet pipe, 17-water quality PH regulator, 201-cultivation water outlet, 401-clean water zone, 402-filtering zone, 403-upper shell, 404-lower shell, 405-pressure difference equipment, 406-blow-off port, 407-water inlet, 408-water outlet, 409-porous plate, 410-filter bag, 411-filter element, 412-microorganism processing layer, 501-lamp tube, 502-water inlet pipe, 503-water outlet pipe, 504-end cover, 505-power supply, 601-motor, 602-dosing tank, 603-dosing pipe, 604-bracket and 605-impeller.
As shown in fig. 1, a circulating purification device for aquaculture water containing a membrane filter mainly comprises a clean water tank 1, an aquaculture water tank 2, a waste residue tank 3, a membrane filter 4, a UV light sterilization device 5, a dosing device 6, a controller 7, a water inlet pipe 8, a siphon 9, a first valve 10, a second valve 11, a third valve 12, a backwash water pipe 13, a lift pump 14, a drain pipe 15, a water outlet pipe 16 and a water quality PH regulator 17. The dosing device 6 is arranged at the position of the culture water pool 2, and a culture water outlet 201 is arranged at the bottom of the side surface of the culture water pool 2.
As shown in fig. 1, the membrane filter 4 further comprises an upper shell 403 and a lower shell 404 which are installed together, the upper shell 403 and the lower shell 404 are connected together, a filtering zone 402 and a clean water zone 401 are formed in an inner space enclosed by the upper shell 403 and the lower shell 404, namely, two zones, namely, the filtering zone 402 and the clean water zone 401 are divided in the shell, the filtering zone 402 is arranged below, and the clean water zone 401 is arranged above. A filter bag 410, a perforated plate 409 and a microorganism processing layer 412 are sequentially arranged between the filtering area 402 and the clear water area 401, and the filter bag 410, the perforated plate 409 and the microorganism processing layer 412 are sequentially distributed from bottom to top. A filter element 411 is arranged in the perforated plate 409. The inner wall of the lower shell is provided with a differential pressure device 405, the bottom of the lower shell is provided with a sewage outlet 406, the side of the lower shell is provided with a water inlet 407, the side of the upper shell is provided with a water outlet 408, the water inlet 407 is positioned at the left end of the outer surface of the membrane filter 4, the water outlet 408 is also positioned at the left end of the outer surface of the membrane filter 4, and the waste residue pool 3 is arranged below the sewage discharge pipe 15.
The one end of inlet tube 8 is connected with breed delivery port 201, and the other end of inlet tube 8 is connected with siphon 9, and siphon 9 is connected to the water inlet 407 of inferior valve through the pipe connection, and the blow off pipe 15 that is located 3 tops in waste residue pond is connected to the drain 406 of inferior valve, and the drain 406 at the inferior valve is connected to the upper end of blow off pipe 15.
One end of a water outlet pipe 16 is connected to the water outlet 408 of the upper shell, and the other end of the water outlet pipe 16 is connected to the water inlet of the UV light sterilization device 5; the water quality pH regulator 17 is connected with the UV light sterilization equipment 5, and the water quality pH regulator 17 can regulate the pH value of water in the UV light sterilization equipment 5.
The UV light sterilization equipment 5 comprises a lamp tube 501, a water inlet pipe 502, a water outlet pipe 503 and an end cover 504; the fluorescent tube 501 is located the inside of UV illumination sterilizing installation 5, and oral siphon 502 is located UV illumination sterilizing installation 5 and is connected with outlet pipe 16, and oral siphon 502 is connected at the water inlet of UV illumination sterilizing installation 5, and drain pipe 503 one end is located UV illumination sterilizing installation 5, and the other end of drain pipe 503 stretches into clean water basin 1, and end cover 504 is located the top of UV illumination sterilizing installation 5. The UV light sterilizing apparatus 5 further includes a power source 505, the power source 505 is provided in a space formed by the end cap 504 and the UV light sterilizing apparatus 5, and the power source 505 may be disposed at a suitable place.
The medicine adding device 6 comprises a motor 601, a medicine adding box 602, a medicine adding pipe 603, a bracket 604 and an impeller 605. The dosing box 602 is installed on the output end of the motor 601, the bracket 604 is connected with the dosing box 602, the dosing pipe 603 is located in the bracket 604, the impeller 605 is installed at the lower end of the bracket 604, and the impeller 605 is located in the water pool 2 for cultivation. The medicine adding equipment 6 can add medicine into the culture water pool 2 and stir the culture water pool 2.
The purification device also comprises a controller 7, a first valve 10, a second valve 11 and a third valve 12; the differential pressure equipment 405, the dosing equipment 6 and the water quality pH value regulator 17 in the membrane filter 4 are in signal connection with the controller 7; the first valve 10 is disposed on the pipe between the siphon 9 and the lower case inlet 407, the second valve 11 is disposed on the sewage pipe 15, and the third valve 12 is disposed on the outlet pipe 16.
The purification apparatus further includes a backwash water pipe 13 and a lift pump 14, one end of the lift pump 14 is connected to the water outlet 408 of the upper case through a pipe, and the other end of the lift pump 14 is connected to the drain pipe 503 through the backwash water pipe 13. When the amount of water in the upper case 403 is excessive, the water flows through the lift pump 14 and is discharged into the clean water tank 1 through the backwash water pipe 13.
The working principle of the device is as follows: the invention is applied to the circulating purification treatment of the aquaculture water, firstly, flocculant, coagulant aid and redox agent are added into the aquaculture water through the dosing device 6 for primary treatment, the water quality is filtered through the membrane filter 4, so that the aquaculture water is further filtered, the water is sterilized through the UV light sterilization device after the treatment, and meanwhile, the pH value of the water can be adjusted through the water quality pH adjuster. Realize the purification cyclic utilization to the breed water through four layers of processing to adopt controller 7 to control this device, realize semi-automatization operation.
Wherein, the chemical adding device 6 is added with LX181 corrosion and scale inhibitor and two non-oxidizing biocides LX301 and LX401, each of the two non-oxidizing biocides LX301 and LX401 is added by 100ppm every two weeks, and then the LX181 corrosion and scale inhibitor is added by 20ppm according to the water supplement amount. The filter bag 410 of the membrane filter 4 is made by compounding a bulked polytetrafluoroethylene membrane with the thickness of micron order and the aperture of 0.5 mu m, 2-3 mm polypropylene and polyester non-woven fabrics, a PE filter element 411 is used for supporting in a porous plate, and as the aperture ratio is extremely high, the initial flow is very large, and the filtering speed is determined by the filtering performance of a filter cake formed on the filter bag, the membrane filter has good filtering performance on the common insoluble matters in saline water and the like with good rigidity; breed the medicine mixing stirring in the water through the medicine equipment 6 earlier, after filtering through membrane filter 4, discharge into clean water basin 1 after quality of water PH regulator treatment and UV illumination sterilizing equipment 5 sterilization treatment again, can effectively purify the breed water, realize recycling. The microorganism treatment layer 412 adopts common microorganism preparations such as photosynthetic bacteria, bacillus, EM bacteria and nitrobacteria; according to the species of the culture, the proper microorganisms are selected to effectively degrade organic matters, total nitrogen, total phosphorus, ammonia nitrogen, nitrite and COD of the culture water: the controller adopts a PCL controller; the membrane filter and the water quality PH regulator are commercial products.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (6)

1. The utility model provides a breed water circulation purifier who contains membrane filter which characterized in that: comprises a clean water tank (1), a water tank (2) for cultivation, a waste residue tank (3), a membrane filter (4), UV (ultraviolet) light sterilization equipment (5), dosing equipment (6), a water inlet pipe (8), a siphon (9), a blow-off pipe (15), a water outlet pipe (16) and a water quality PH regulator (17); the dosing equipment (6) is arranged at the position of the culture water pool (2), and a culture water outlet (201) is arranged at the bottom of the side surface of the culture water pool (2);
the membrane filter (4) comprises an upper shell (403) and a lower shell (404) which are arranged together, a filtering area (402) and a clear water area (401) are formed in an inner space enclosed by the upper shell (403) and the lower shell (404), a filter bag (410), a porous plate (409) and a microorganism treatment layer (412) are sequentially arranged between the filtering area (402) and the clear water area (401), and a filter element (411) is arranged in the porous plate (409); the inner wall of the lower shell is provided with a differential pressure device (405), the bottom of the lower shell is provided with a sewage outlet (406), the side surface of the lower shell is provided with a water inlet (407), and the side surface of the upper shell is provided with a water outlet (408); the filter bag (410) of the membrane filter 4 is made by compounding a swelling polytetrafluoroethylene membrane with the thickness of micron order and the aperture of 0.5 mu m, polypropylene with the diameter of 2-3 mm and polyester non-woven fabrics, and a PE filter element (411) is used for supporting the inside of a porous plate (409);
one end of the water inlet pipe (8) is connected with the culture water outlet (201), the other end of the water inlet pipe (8) is connected with the siphon (9), the siphon (9) is connected to the water inlet (407) of the lower shell through a pipeline, and the drain pipe (15) positioned above the waste residue pool (3) is connected to the drain outlet (406) of the lower shell;
one end of a water outlet pipe (16) is connected to the water outlet (408) of the upper shell, and the other end of the water outlet pipe (16) is connected to the water inlet of the UV illumination sterilization equipment (5); the water quality PH regulator (17) is connected with the UV illumination sterilization equipment (5);
the UV light sterilization equipment (5) comprises a lamp tube (501), a water inlet pipe (502), a water outlet pipe (503) and an end cover (504); the lamp tube (501) is positioned inside the UV illumination sterilization equipment (5), the water inlet pipe (502) is positioned in the UV illumination sterilization equipment (5) and is connected with the water outlet pipe (16), one end of the water outlet pipe (503) is positioned in the UV illumination sterilization equipment (5), the other end of the water outlet pipe (503) extends into the clean water tank (1), and the end cover (504) is positioned above the UV illumination sterilization equipment (5);
medicine equipment (6) include motor (601), dosing tank (602), dosing pipe (603), support (604), impeller (605), and the dosing tank (602) is installed on the output of motor (601), and support (604) are connected with dosing tank (602), and dosing pipe (603) are located support (604), and the lower extreme at support (604) is installed in impeller (605), and impeller (605) are located to breed and use water pond (2).
2. The circulating purification device for aquaculture water containing membrane filter as claimed in claim 1, wherein: the purification device also comprises a controller (7), a first valve (10), a second valve (11) and a third valve (12); the differential pressure equipment (405), the dosing equipment (6) and the water quality PH regulator (17) in the membrane filter (4) are in signal connection with the controller (7); the first valve (10) is arranged on a pipeline between the siphon (9) and the lower shell water inlet (407), the second valve (11) is arranged on the sewage discharge pipe (15), and the third valve (12) is arranged on the water outlet pipe (16).
3. The circulating purification device for aquaculture water containing membrane filter as claimed in claim 1, wherein: the purification device further comprises a backwashing water pipe (13) and a lifting pump (14), one end of the lifting pump (14) is connected to the water outlet (408) of the upper shell through a pipeline, and the other end of the lifting pump (14) is connected to a water drain pipe (503) through the backwashing water pipe (13).
4. The circulating purification device for aquaculture water containing membrane filter as claimed in claim 1, wherein: the UV light sterilization device (5) further comprises a power supply (505), and the power supply (505) is positioned in a space formed by the end cover (504) and the UV light sterilization device (5).
5. The circulating purification device for aquaculture water containing membrane filter as claimed in claim 1, wherein: the feeding box (602) is internally provided with a corrosion and scale inhibitor and a non-oxidizing biocide.
6. The circulating purification device for aquaculture water containing membrane filter as claimed in claim 1, wherein: the microbial treatment layer (412) is prepared from microbial preparations including photosynthetic bacteria, bacillus, EM bacteria or nitrobacteria.
CN201810218283.5A 2018-03-16 2018-03-16 Membrane filter-containing water circulation purification device for cultivation Active CN108439700B (en)

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CN108439700B true CN108439700B (en) 2020-09-22

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