CN216837530U - Recycling and regenerating treatment system for aquatic product industrial circulating aquaculture - Google Patents

Abstract

The utility model discloses an aquatic product factory circulating water culture recycling and regenerating treatment system, which comprises a fishpond, a micro-filter, an aerobic biological pond, a pump pond, a constant temperature unit and a circulating sewage treatment device; the device comprises a fish pond, a micro-filter, a pump pond, a constant temperature unit and a fish pond, wherein the fish pond is communicated with the micro-filter through a fish pond discharge pipe; the fish pond discharge pipe is communicated with the circulating sewage treatment device through a third three-way pipe, the micro-filter is communicated with the circulating sewage treatment device through a micro-filtration blow-off pipe, and the circulating sewage treatment device is communicated with the micro-filtration discharge pipe through a return discharge pipe. The recycling and regenerating treatment system for the aquatic product industrial circulating aquaculture has the effects of reducing the discharge of sewage, improving the sewage utilization rate and improving the oxygen content of the aquaculture water body.

Description

Recycling and regenerating treatment system for industrial aquaculture circulating water

Technical Field

The utility model relates to an aquaculture system's technical field, concretely relates to regeneration processing system is retrieved in aquatic products batch production recirculating water aquaculture.

Background

In the process of aquaculture, water in the aquaculture pond needs to be purified continuously, so that the water quality in the aquaculture pond is kept clean, and meanwhile, the water in the aquaculture pond needs to be guaranteed to contain enough oxygen for various aquatic products to live.

The aquaculture water circulation purification system in the related art discharges more sewage, the recovery rate of the sewage is not high, the environment is easily polluted, the oxygen content of the circulating aquaculture water is low, the aquatic products are easily killed, and the aquaculture cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aquatic products batch production recirculating water aquaculture retrieves regeneration treatment system to prior art's weak point to reach and reduce the outer row of sewage, promote sewage utilization and improve the purpose of aquaculture water oxygen content.

The utility model discloses a technical scheme do: an aquatic product factory circulating aquaculture recycling and regeneration treatment system comprises a fishpond, a micro-filter, an aerobic biological pond, a pump pond, a constant temperature unit and a circulating sewage treatment device; the device comprises a fish pond, a micro-filter, a pump pond, a constant temperature unit and a fish pond, wherein the fish pond is communicated with the micro-filter through a fish pond discharge pipe; the fish pond discharge pipe is communicated with the circulating sewage treatment device through a third pipe, the micro-filter is communicated with the circulating sewage treatment device through a micro-filtration blow-off pipe, and the circulating sewage treatment device is communicated with the micro-filtration discharge pipe through a return discharge pipe.

Further, the circulating sewage treatment device comprises a circulating sewage concentration pool, a fish manure collecting barrel, a first protein separator and a sewage collecting pool, wherein a fish pond discharge pipe is communicated with the fish manure collecting barrel through a third pipe, the fish manure collecting barrel is communicated with the circulating sewage concentration pool through a collecting barrel discharge pipe, and the circulating sewage concentration pool is communicated with the first protein separator through a fourth pipe; the first protein separator is communicated with the microfiltration discharge pipe through a reflux discharge pipe, and is communicated with the sewage collection pool through a first sewage discharge pipe; the micro-filter is communicated with the circulating sewage centralized pool through a micro-filtration blow-off pipe.

Further, still include the second protein separator, the microstrainer passes through the microfiltration delivery pipe and communicates the second protein separator, the second protein separator passes through the aerobic biological pond of fifth siphunculus intercommunication, and the second protein separator passes through second blow off pipe intercommunication collection dirty pond.

Further, the ultraviolet sterilization lamp device further comprises two ultraviolet sterilization lamps, and the two ultraviolet sterilization lamps are respectively arranged in the backflow discharge pipe and the fifth through pipe.

Further, the device also comprises an ozone generator which is respectively communicated with the first protein separator and the second protein separator through two ozone pipes.

Further, the device also comprises a trickle pool, the second protein separator is communicated with the trickle pool through a fifth through pipe, and the trickle pool is communicated with the aerobic biological pool through a sixth through pipe.

The aerobic biological tank is communicated with the aeration tank through a biological tank discharge pipe, and the aeration tank is communicated with the pump tank through an aeration discharge pipe; the air oxygenation pump is respectively communicated with the oxygenation tank, the aerobic biological tank, the circulating sewage concentration tank and the fish pond through a plurality of oxygen pipes.

Further, the device also comprises an aeration tank, wherein the second protein separator is communicated with the aeration tank through a fifth through pipe, and the aeration tank is communicated with the aerobic biological tank through an aeration discharge pipe; the air oxygenation pump is respectively communicated with the oxygenation tank, the aerobic biological tank, the circulating sewage concentration tank, the aeration tank and the fish pond through a plurality of oxygen pipes.

To sum up, the utility model discloses following beneficial effect has: sewage discharged from the fishpond flows into the micro-filter through a fishpond discharge pipe; part of water flowing through the fish pond discharge pipe flows into the circulating sewage treatment device through the third tee pipe, the circulating sewage treatment device purifies the inflowing water, and then the part of water flows back to the microfiltration discharge pipe through the reflux discharge pipe and flows into the aerobic biological pond through the microfiltration discharge pipe; after the sewage is filtered by a micro-filter, the filtered water flows into an aerobic biological pool through a micro-filtration discharge pipe; sewage generated in the filtering operation of the micro-filter is discharged into the circulating sewage treatment device through the micro-filtering discharge pipe, purified by the circulating sewage treatment device and then flows back into the micro-filtering discharge pipe; the aerobic biological pond decomposes organic sludge in the inflowing water body, then the purified water body is discharged into the pump pond through a biological pond discharge pipe, the water body inflowing into the pump pond flows into the constant temperature unit through the first through pipe, so that the water temperature is kept to be suitable for cultivating aquatic products, the water body with the suitable temperature flows back into the fish pond through the second through pipe, and thus primary circulation is completed; in this application, the sewage that the aquarium was discharged is through purifying many times and decontaminating, finally circulates back the aquarium and recycles, has saved a large amount of water resources, and simultaneously, sewage is at the in-process that the circulation purified, and its oxygen content has obtained the increase for the circulating water that flows back to the aquarium is more suitable for breeding the aquatic products.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Wherein, 1, a fishpond; 2. a micro-filter; 3. an aerobic biological tank; 4. a pump pool; 5. a constant temperature unit; 6. a circulating sewage treatment device; 61. a circulating sewage concentration tank; 62. a fish dung collecting barrel; 63. a first protein separator; 64. a sewage collecting tank; 65. a collection barrel discharge pipe; 66. a fourth through pipe; 67. a first drain pipe; 7. a fish pond discharge pipe; 8. a microfiltration discharge pipe; 9. a biological pond discharge pipe; 10. a first through pipe; 11. a second pipe; 12. a third pipe; 13. a microfiltration blow-off pipe; 14. a reflux discharge pipe; 15. a second protein separator; 16. a fifth through pipe; 17. A second sewage draining pipe; 18. an ultraviolet germicidal lamp; 19. an ozone generator; 20. an ozone tube; 21. A trickle pool; 22. a sixth pipe; 23. an air oxygenation pump; 24. an oxygenation pool; 25. an oxygenation discharge pipe; 26. an oxygen pipe; 27. an aeration tank; 28. an aeration discharge pipe.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The present invention will be further explained with reference to the embodiments of the drawings.

As shown in figure 1, the utility model provides an aquatic product industrial circulating water culture recycling and regenerating treatment system, which comprises a fishpond 1, a micro-filter 2, an aerobic biological pond 3, a pump pond 4, a constant temperature unit 5 and a circulating sewage treatment device 6; the fishpond 1 is communicated with the micro-filter 2 through a fishpond discharge pipe 7, the micro-filter 2 is communicated with the aerobic biological pond 3 through a micro-filter discharge pipe 8, the aerobic biological pond 3 is communicated with the pump pond 4 through a biological pond discharge pipe 9, the pump pond 4 is communicated with the constant temperature unit 5 through a first through pipe 10, and the constant temperature unit 5 is communicated with the fishpond 1 through a second through pipe 11; the fish pond discharge pipe 7 is communicated with the circulating sewage treatment device 6 through a third three-way pipe 12, the micro-filter 2 is communicated with the circulating sewage treatment device 6 through a micro-filtration blow-off pipe 13, and the circulating sewage treatment device 6 is communicated with the micro-filtration discharge pipe 8 through a return discharge pipe 14.

Specifically, the aerobic biological tank 3 is an air flotation tumbling type aerobic biological tank 3.

Optionally, the circulating sewage treatment device 6 comprises a circulating sewage concentration tank 61, a fish dung collection tank 62, a first protein separator 63 and a sewage collection tank 64, the fish pond discharge pipe 7 is communicated with the fish dung collection tank 62 through a third pipe 12, the fish dung collection tank 62 is communicated with the circulating sewage concentration tank 61 through a collection tank discharge pipe 65, and the circulating sewage concentration tank 61 is communicated with the first protein separator 63 through a fourth pipe 66; the first protein separator 63 is communicated with the microfiltration discharge pipe 8 through the return discharge pipe 14, and the first protein separator 63 is communicated with the sewage collecting tank 64 through a first sewage discharge pipe 67; the micro-filter 2 is communicated with the circulating sewage centralized pool 61 through a micro-filtration sewage discharge pipe 13.

Specifically, a filter screen, preferably a 200 mesh filter screen, is disposed in the circulating wastewater collecting tank 61, and wastewater flowing into the circulating wastewater collecting tank 61 passes through the filter screen, and the filter screen blocks large-sized contaminants in wastewater passing through the filter screen. The first protein separator 63 is a built-in variable frequency protein separator.

According to the arrangement, part of water discharged from the fish pond discharge pipe 7 flows into the fish manure collecting barrel 62 through the first short-circuit pipe, and sewage generated by the fish manure collecting barrel 62 is discharged into the circulating sewage concentration pond 61 through the collecting barrel discharge pipe for purification treatment; meanwhile, sewage discharged by the micro-filter 2 enters the circulating sewage concentration tank 61 through the micro-filtration sewage discharge pipe 13, then the circulating sewage concentration tank 61 filters and aerates the inflowing sewage, and the sewage is discharged into the first protein separator 63 through the fourth pipe 66, the first protein separator 63 purifies the inflowing sewage and then discharges the sewage into the micro-filtration discharge pipe 8 through the backflow discharge pipe 14, so that most of sewage generated by the micro-filter 2 can be recycled, the sewage generated by the first protein separator 63 is discharged into the sewage collection tank 64 through the first sewage discharge pipe 67, and sewage discharge is further reduced.

Optionally, the device further comprises a second protein separator 15, the microfiltration machine 2 is communicated with the second protein separator 15 through a microfiltration discharge pipe 8, the second protein separator 15 is communicated with the aerobic biological tank 3 through a fifth through pipe 16, and the second protein separator 15 is communicated with the sewage collecting tank 64 through a second sewage discharge pipe 17.

In particular, the second protein separator 15 is a built-in variable frequency protein separator.

So arranged, the water body flowing out of the microfiltration discharge pipe 8 can be further purified.

Optionally, two ultraviolet germicidal lamps 18 are further included, and the two ultraviolet germicidal lamps 18 are respectively disposed in the backflow discharge pipe 14 and the fifth pipe 16.

So arranged, the sewage flowing through the backflow discharge pipe 14 and the fifth pipe 16 can be uniformly irradiated and sterilized by the ultraviolet lamp, so that the sewage flowing through the backflow discharge pipe 14 and the fifth pipe 16 is cleaner.

Optionally, the device further comprises an ozone generator 19, and the ozone generator 19 is respectively communicated with the first protein separator 63 and the second protein separator 15 through two ozone tubes 20.

Thus, the ozone generator 19 introduces ozone into the first protein separator 63 and the second protein separator 15 through the ozone pipe 20, so that the ozone can be fully dissolved in the water flowing through the first protein separator 63 and the second protein separator 15, and further, germs and parasites in the water flowing through the first protein separator 63 and the second protein separator 15 can be efficiently killed.

Optionally, the device further comprises a trickle pool 21, the second protein separator 15 is communicated with the trickle pool 21 through a fifth pipe 16, and the trickle pool 21 is communicated with the aerobic biological pool 3 through a sixth pipe 22.

Specifically, the trickle pool 21 is an air-draft trickle pool 21.

So configured, the water body wrapped with ozone flowing out of the second protein separator 15 will flow into the trickling pool 21 through the fifth pipe 16, the trickling pool 21 can discharge excessive carbon dioxide in the inflowing water body and degrade excessive ozone in the water body, and then the trickling pool 21 discharges the treated water body into the aerobic biological tank 3 through the sixth pipe 22.

Optionally, the system further comprises an air oxygenation pump 23 and an oxygenation pool 24, wherein the aerobic biological pool 3 is communicated with the oxygenation pool 24 through a biological pool discharge pipe 9, and the oxygenation pool 24 is communicated with the pump pool 4 through an oxygenation discharge pipe 25; the air oxygenation pump 23 is respectively communicated with the oxygenation tank 24, the aerobic biological tank 3, the circulating sewage concentration tank 61 and the fishpond 1 through a plurality of oxygen pipes 26.

So set up, the body of aerobic biological pond 3 outflow flows into oxygenation pond 24 through biological pond discharge pipe 9, and air oxygenation pump 23 is through leading to oxygen pipe 26 with oxygen pump income oxygenation pond 24 in, make the water of oxygenation pond 24 of flowing through dissolve a large amount of oxygen, and simultaneously, air oxygenation pump 23 leads to oxygen pipe 26 to aerobic biological pond 3, circulation sewage concentrates pond 61, logical oxygen in the aquarium 1, make the water flow through aerobic biological pond 3, circulation sewage concentrates pond 61, oxygen can all be dissolved into when aquarium 1, the oxygen content of the water in aquarium 1 has further been guaranteed.

Optionally, an aeration tank 27 is further included, the second protein separator 15 is communicated with the aeration tank 27 through a fifth pipe 16, and the aeration tank 27 is communicated with the aerobic biological tank 3 through an aeration discharge pipe 28; the air oxygenation pump 23 is respectively communicated with the oxygenation tank 24, the aerobic biological tank 3, the circulating sewage concentration tank 61, the aeration tank 27 and the fish pond 1 through a plurality of oxygen pipes 26.

So set up, when the water that wraps up with a large amount of ozone from second protein separator 15 through fifth pipe 16 and flows into aeration tank 27, air oxygenation pump 23 lets in oxygen aeration tank 27 for the ozone in the water in aeration tank 27 can be diluted by preliminary.

The implementation principle of the embodiment is as follows: sewage discharged from the fishpond 1 flows into the micro-filter 2 through a fishpond discharge pipe 7; part of the water flowing through the fishpond discharge pipe 7 will flow through the third pipe 12 into the circulating sewage treatment unit 6.

Part of water discharged from the fish pond discharge pipe 7 flows into the fish manure collecting barrel 62 through the third tee pipe 12, and sewage generated by the fish manure collecting barrel 62 is discharged into the circulating sewage collecting pond 61 through the collecting barrel discharge pipe for purification treatment; meanwhile, sewage discharged by the micro-filter 2 enters the circulating sewage concentration tank 61 through the micro-filtration sewage discharge pipe 13, then the circulating sewage concentration tank 61 filters and aerates the inflowing sewage, and the sewage is discharged into the first protein separator 63 through the fourth pipe 66, the first protein separator 63 purifies the inflowing sewage and then discharges the sewage into the micro-filtration discharge pipe 8 through the backflow discharge pipe 14, so that most of sewage generated by the micro-filter 2 can be recycled, the sewage generated by the first protein separator 63 is discharged into the sewage collection tank 64 through the first sewage discharge pipe 67, and sewage discharge is further reduced.

After the sewage is filtered by the micro-filter 2, the filtered water flows into the second protein separator 15 through the micro-filtration discharge pipe 8, the second protein separator 15 purifies the inflowing water and discharges the purified water into the aeration tank 27 through the fifth pipe 16, and the air oxygenation pump 23 pumps oxygen into the aeration tank 27, so that ozone in the water in the aeration tank 27 can be primarily diluted. The aeration tank 27 discharges the water body into the trickle tank 21 through the aeration discharge pipe 28, and the trickle tank 21 discharges the water body into the aerobic biological tank 3 through the sixth pipe 22.

The aerobic biological tank 3 decomposes organic sludge in the inflowing water body, then the purified water body flows into the oxygen increasing tank 24 through the biological tank discharge pipe 9, and the air oxygen increasing pump 23 pumps oxygen into the oxygen increasing tank 24 through the oxygen introducing pipe 26, so that a large amount of oxygen can be dissolved in the water body flowing through the oxygen increasing tank 24.

The water body is discharged into the pump pool 4 through the oxygen increasing discharge pipe 25 by the oxygen increasing pool 24, the water body flowing into the pump pool 4 flows into the constant temperature unit 5 through the first through pipe 10, so that the water temperature is kept to be suitable for cultivating aquatic products, and the water body with the suitable temperature flows back into the fish pond 1 through the second through pipe 11, so that one circulation is completed; in this application, the sewage of aquarium 1 exhaust is through purifying and decontaminating many times, finally circulates back aquarium 1 and recycles, has saved a large amount of water resources, and simultaneously, sewage is at the in-process that the circulation purified, and its oxygen content has obtained the increase for the circulating water that flows back aquarium 1 is more suitable for breeding the aquatic products.

The above is only the preferred embodiment of the present invention, the present invention is not limited to the above embodiment, there may be local minor structural modification in the implementation process, if it is right that various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and belong to the claims and the equivalent technical scope of the present invention, then the present invention is also intended to include these modifications and variations.

Claims (8)

1. An aquatic product factory circulating aquaculture recycling and regeneration treatment system is characterized by comprising a fish pond, a micro-filter, an aerobic biological pond, a pump pond, a thermostatic unit, a circulating sewage treatment device, a fish pond discharge pipe, a micro-filtration blow-off pipe, a biological pond discharge pipe, a first through pipe, a second through pipe, a third through pipe and a backflow discharge pipe; the first end of the fish pond discharge pipe is communicated with the output end of the fish pond, and the second end of the fish pond discharge pipe is communicated with the input end of the micro-filter; the first end of the microfiltration discharge pipe is communicated with the output end of the microfiltration machine, and the second end of the microfiltration discharge pipe is communicated with the input end of the aerobic biological tank; one end of the biological pond discharge pipe is communicated with the output end of the aerobic biological pond, and the other end of the biological pond discharge pipe is communicated with the input end of the pump pond; one end of the first through pipe is communicated with the output end of the pump pool, and the other end of the first through pipe is communicated with the input end of the constant temperature unit; one end of the second through pipe is communicated with the output end of the constant temperature unit, and the other end of the second through pipe is communicated with the input end of the fish pond; one end of the third three-way pipe is communicated with the third end of the fish pond discharge pipe, and the other end of the third three-way pipe is communicated with the input end of the circulating sewage treatment device; one end of the microfiltration blow-off pipe is communicated with the blow-off end of the microfiltration machine, and the other end of the microfiltration blow-off pipe is communicated with the input end of the circulating sewage treatment device; one end of the backflow discharge pipe is communicated with the output end of the circulating sewage treatment device, and the other end of the backflow discharge pipe is communicated with the third end of the microfiltration discharge pipe.

2. The recycling and regenerating treatment system for the industrial circulating aquaculture of aquatic products as claimed in claim 1, wherein said circulating sewage treatment device comprises a circulating sewage concentration tank, a fish feces collection tank, a first protein separator, a sewage collection tank, a collection tank discharge pipe, a fourth pipe and a first sewage discharge pipe; one end of the third three-way pipe is communicated with the third end of the fish pond discharge pipe, and the other end of the third three-way pipe is communicated with the input end of the fish manure collecting barrel; one end of the discharge pipe of the collecting barrel is communicated with the output end of the fish dung collecting barrel, and the other end of the discharge pipe of the collecting barrel is communicated with the input end of the circulating sewage collecting tank; one end of the fourth through pipe is communicated with the output end of the circulating sewage concentration tank, and the other end of the fourth through pipe is communicated with the input end of the first protein separator; one end of the backflow discharge pipe is communicated with the output end of the first protein separator, and the other end of the backflow discharge pipe is communicated with the third end of the microfiltration discharge pipe; the first sewage discharge pipe is communicated with a sewage discharge end of the first protein separator, and the other end of the first sewage discharge pipe is communicated with an input end of the sewage collection pool; one end of the microfiltration blow-off pipe is communicated with the blow-off end of the microfiltration machine, and the other end of the microfiltration blow-off pipe is communicated with the input end of the circulating sewage concentration pool.

3. The recycling and regenerating treatment system for the industrial circulating aquaculture of the aquatic products as claimed in claim 2, further comprising a second protein separator, a fifth pipe and a second blow-off pipe; one end of the microfiltration discharge pipe is communicated with the output end of the microfiltration machine, and the other end of the microfiltration discharge pipe is communicated with the input end of the second protein separator; one end of the fifth through pipe is communicated with the output end of the second protein separator, and the other end of the fifth through pipe is communicated with the input end of the aerobic biological tank; one end of the second sewage discharge pipe is communicated with the sewage discharge end of the second protein separator, and the other end of the second sewage discharge pipe is communicated with the input end of the sewage collection pool.

4. The recycling and regenerating system for the industrial circulating aquaculture water of claim 3, further comprising two ultraviolet germicidal lamps, wherein the two ultraviolet germicidal lamps are respectively disposed in the backflow discharge pipe and the fifth through pipe.

5. The recycling and regenerating system for the industrial circulating aquaculture water of claim 3, further comprising an ozone generator and an ozone pipe, wherein the ozone pipe has a first end connected to the output end of the ozone generator, a second end connected to the input end of the first protein separator, and a third end connected to the input end of the second protein separator.

6. The aquaculture factory circulating water culture recycling and regenerating treatment system as claimed in claim 5, further comprising a trickle pool and a sixth pipe; one end of the fifth through pipe is communicated with the output end of the second protein separator, and the other end of the fifth through pipe is communicated with the input end of the trickling pool; one end of the sixth through pipe is communicated with the output end of the trickling pool, and the other end of the sixth through pipe is communicated with the input end of the aerobic biological pool.

7. The recycling and regenerating system for the industrial circulating aquaculture water of claim 5, further comprising an air oxygenation pump, an oxygenation pool, an oxygenation discharge pipe, and an oxygen pipe; one end of the biological pond discharge pipe is communicated with the output end of the aerobic biological pond, and the other end of the biological pond discharge pipe is communicated with the input end of the oxygenation pond; one end of the oxygen increasing discharge pipe is communicated with the output end of the oxygen increasing pool, and the other end of the oxygen increasing discharge pipe is communicated with the input end of the pump pool; the air oxygenation pump is respectively communicated with the oxygenation tank, the aerobic biological tank, the circulating sewage concentration tank and the fish pond through a plurality of oxygen pipes.

8. The aquaculture factory circulating water culture recycling and regenerating treatment system according to claim 7, further comprising an aeration tank and an aeration discharge pipe; one end of the fifth through pipe is communicated with the output end of the second protein separator, and the other end of the fifth through pipe is communicated with the input end of the aeration tank; one end of the aeration discharge pipe is communicated with the output end of the aeration tank, and the other end of the aeration discharge pipe is communicated with the input end of the aerobic biological tank; the air oxygenation pump is respectively communicated with the oxygenation tank, the aerobic biological tank, the circulating sewage concentration tank, the aeration tank and the fish pond through a plurality of oxygen pipes.

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