CN115124149A - Tail water treatment system combining pool bottom sewage discharge and ecological purification pool - Google Patents
Tail water treatment system combining pool bottom sewage discharge and ecological purification pool Download PDFInfo
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- CN115124149A CN115124149A CN202211068222.8A CN202211068222A CN115124149A CN 115124149 A CN115124149 A CN 115124149A CN 202211068222 A CN202211068222 A CN 202211068222A CN 115124149 A CN115124149 A CN 115124149A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 202
- 239000010865 sewage Substances 0.000 title claims abstract description 98
- 238000000746 purification Methods 0.000 title claims abstract description 91
- 238000009360 aquaculture Methods 0.000 claims abstract description 78
- 244000144974 aquaculture Species 0.000 claims abstract description 78
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- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 239000008213 purified water Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 5
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- 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
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- Biotechnology (AREA)
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- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention provides a tail water treatment system combining bottom sewage disposal and an ecological purification tank, belonging to the technical field of sewage and sludge treatment, and comprising an ecological purification tank system and a bottom sewage disposal system, wherein the ecological purification tank system is used for communicating with a tail water discharge end of an aquaculture pond and is used for treating and purifying the discharged aquaculture tail water in an ecological mode; bottom of pool sewage disposal system is close to aquaculture pond setting, have the blow off pipe that is used for communicateing aquaculture pond bottom of pool, bottom of pool sewage disposal system is used for handling from aquaculture pond exhaust aquaculture tail water, bottom of pool sewage disposal system can be with the water transport after handling to aquaculture pond in with ecological purification pond system after to tail water treatment, bottom of pool sewage disposal system and ecological purification pond system mutually support or alternate operation, realized handling through ecological technology means and purifying aquaculture pond tail water, and can handle tail water system with the bottom of pool sewage treatment and combine the use, improve and handle aquaculture tail water treatment efficiency and reduce environmental pollution.
Description
Technical Field
The invention belongs to the technical field of sewage and sludge treatment, and particularly relates to a tail water treatment system combining bottom sewage discharge and an ecological purification tank.
Background
In the prior art, if the tail water or the sewage generated by industrial aquaculture is not treated or the water quality after treatment is not up to the standard, the tail water or the sewage is discharged outside, so that water resource waste and environmental pollution are caused, sewage treatment equipment is needed for treatment, various sewage treatment equipment are provided, the sewage is treated mainly by adopting a physical method or a chemical method or a combination method of the physical method and the chemical method, and sometimes, a medicament is required to be added into the sewage treatment equipment, and the use of the medicament or the treatment of the sewage by the chemical method is not beneficial to ecological protection. Aiming at the current treatment situation of the culture tail water, a system for treating the culture tail water by using an ecological mode or a technical means is needed to be researched, the system can be used together with a pond bottom pollution discharge treatment tail water system, the culture tail water is treated together, and the treated tail water can be recycled into a culture pond.
Disclosure of Invention
The invention aims to provide a tail water treatment system combining pool bottom sewage discharge and an ecological purification pool, which aims to realize treatment and purification of tail water of a culture pool by an ecological technical means and can be combined with a pool bottom sewage discharge and treatment tail water system for use, so that the treatment efficiency of treating the culture tail water is improved and the environmental pollution is reduced.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a tail water treatment system combining bottom sewage discharge and an ecological purification tank, comprising:
the ecological purification pond system is used for communicating with the tail water discharge end of the aquaculture pond and comprehensively treating and purifying the discharged aquaculture tail water in an ecological mode;
the bottom of pool sewage disposal system is close to the setting of aquaculture pond, has the blow off pipe that is used for communicateing the aquaculture pond bottom of pool, the bottom of pool sewage disposal system is used for handling from aquaculture pond exhaust cultivation tail water, the bottom of pool sewage disposal system with ecological purification pond system can be defeated to aquaculture pond in with the water after handling after tail water treatment, the bottom of pool sewage disposal system with ecological purification pond system mutually supports or alternate operation.
In one possible implementation, the ecological purification pond system includes:
one end of the ecological ditch is communicated with the tail water discharge end of the aquaculture pond and is used for discharging aquaculture tail water;
the ecological purification pool is provided with a water inlet end and a water outlet end, the water inlet end is used for being communicated with the other end of the ecological ditch, and the ecological purification pool is used for treating and purifying culture tail water;
the return water irrigation canals and ditches, one end intercommunication ecological purification pond play water end, other end intercommunication aquaculture pond for to carrying the water after the processing purifies in the aquaculture pond, aquaculture pond ecological irrigation canals and ditches ecological purification pond with the return water irrigation canals and ditches form tail water circulation treatment clean system altogether.
In one possible implementation, filter feeding organisms are cultivated in the ecological purification tank, submerged, emerged and floating-leaf aquatic plants are planted, and the area of the ecological purification tank covered by the aquatic plants is more than 80%.
In a possible implementation manner, a water quality monitoring device is installed at the water outlet end of the ecological purification tank and used for monitoring the water quality of the water body after treatment and purification.
In one possible implementation, the bottom-of-pool sewage system includes:
the sewage draining well is excavated beside the aquaculture pond and is of a vertical well structure, one end of the sewage draining pipe is communicated with the bottom of the aquaculture pond, the inner bottom of the sewage draining well is communicated with the other end of the sewage draining pipe, and the sewage draining pipe is used for draining tail water in the aquaculture pond to the sewage draining well;
the water pumping assembly is arranged at the inner bottom of the sewage well, the water outlet end of the water pumping assembly is communicated with a drain pipe, and the drain pipe extends out of the upper end of the sewage well;
the sedimentation tank is located subaerially, the blow off pipe extends to in the sedimentation tank, pump water subassembly is used for the extraction tail water in the blow off well and to the pump sending in the sedimentation tank, the sedimentation tank is used for deposiing tail water, sedimentation tank lateral part intercommunication has the wet return, wet return one end intercommunication sedimentation tank, other end intercommunication breed pond, process water after the sedimentation tank deposits passes through the wet return is defeated to breed pond.
In a possible implementation mode, the pool bottom sewage discharge system further comprises a fish-vegetable symbiotic artificial wetland system, the fish-vegetable symbiotic artificial wetland system is communicated with the sedimentation tank through a pipeline, and water precipitated in the sedimentation tank is conveyed to the fish-vegetable symbiotic artificial wetland system through the pipeline.
In a possible implementation manner, the pool bottom sewage system further comprises an outer discharge channel, the outer discharge channel is communicated with the fish-vegetable symbiotic artificial wetland system, and tail water discharged by the fish-vegetable symbiotic artificial wetland system can be conveyed to the outer discharge channel.
In a possible implementation mode, the water return pipe is further arranged between the fish and vegetable symbiotic artificial wetland system and the culture pond, and tail water discharged by the fish and vegetable symbiotic artificial wetland system can be conveyed to the culture pond.
In a possible implementation mode, a drain outlet is arranged at the bottom of the aquaculture pond, an anti-escape net is arranged at the upper end of the drain outlet, and one end of a drain pipe is communicated with the drain outlet and is positioned below the anti-escape net.
In one possible implementation manner, a water pump for pumping tail water is installed in the ecological ditch and/or the water return ditch.
The tail water treatment system combining the pool bottom pollution discharge and the ecological purification pool has the beneficial effects that: compared with the prior art, the tail water treatment system combining the pool bottom sewage disposal and the ecological purification pool comprises an ecological purification pool system and a pool bottom sewage disposal system, wherein the ecological purification pool system is used for communicating with a tail water discharge end of an aquaculture pool and is used for comprehensively treating and purifying the discharged aquaculture tail water in an ecological mode; bottom of pool sewage disposal system is close to aquaculture pond and sets up, have the blow off pipe that is used for communicateing aquaculture pond bottom of pool, bottom of pool sewage disposal system is used for handling from aquaculture pond exhaust breed tail water, bottom of pool sewage disposal system can be defeated to aquaculture pond in with the water after handling after tail water treatment with ecological purification pond system, bottom of pool sewage disposal system and ecological purification pond system mutually support or alternate operation, realized handling through ecological technology means and purifying aquaculture pond tail water, and can use with bottom of pool blowdown treatment tail water system combination, improve and handle aquaculture tail water treatment efficiency and reduce environmental pollution.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an ecological purification pond system of a tail water treatment system combining bottom sewage disposal and an ecological purification pond according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a bottom sewage disposal system of a tail water treatment system combining bottom sewage disposal and an ecological purification tank according to an embodiment of the present invention.
Description of the reference numerals:
1. an ecological purification pond system; 11. an ecological ditch; 12. an ecological purification tank; 13. a backwater ditch; 2. a pool bottom sewage system; 21. a sewage discharge pipe; 22. a sewage well; 23. a water pumping assembly; 24. a sedimentation tank; 25. a drain pipe; 26. a fish-vegetable symbiotic artificial wetland system; 27. an outward discharge ditch; 3. a culture pond; 31. a sewage draining outlet; 32. an escape-proof net; 4. a water quality monitoring device.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 2, a tail water treatment system combining bottom sewage disposal and an ecological purification tank according to the present invention will now be described. The tail water treatment system combining the pool bottom sewage disposal and the ecological purification pool comprises an ecological purification pool system 1 and a pool bottom sewage disposal system 2, wherein the ecological purification pool system 1 is used for communicating with a tail water discharge end of an aquaculture pool 3 and is used for comprehensively treating and purifying the discharged aquaculture tail water in an ecological mode; the bottom of the pool drainage system 2 is close to the aquaculture pond 3 and is arranged, the drainage pipe 21 used for communicating the bottom of the aquaculture pond 3 is arranged, the bottom of the pool drainage system 2 is used for treating aquaculture tail water discharged from the aquaculture pond 3, the bottom of the pool drainage system 2 and the ecological purification pond system 1 can convey treated water into the aquaculture pond 3 after treating the tail water, and the bottom of the pool drainage system 2 and the ecological purification pond system 1 are mutually matched or run alternately.
Compared with the prior art, the tail water treatment system combining the pool bottom pollution discharge and the ecological purification pool provided by the invention belongs to a sewage treatment system related to seawater utilization, and the ecological purification pool system 1 is used for being communicated with a tail water discharge end of an aquaculture pool 3 and used for comprehensively treating and purifying the discharged aquaculture tail water in an ecological mode; bottom of pool drainage 2 is close to aquaculture pond 3 and sets up, have the blow off pipe 21 that is used for communicateing 3 bottoms of aquaculture pond, bottom of pool drainage 2 is used for handling 3 exhaust breed tail waters from aquaculture pond, bottom of pool drainage 2 can be defeated to aquaculture pond 3 with the water after handling after ecological purification pond system 1 is handled to the tail water in, bottom of pool drainage 2 and ecological purification pond system 1 mutually support or alternate operation, 3 tail waters in aquaculture pond have been realized handling and purifying through ecological technological means, and can handle tail water system with the bottom of pool blowdown and combine the use, improve and handle breed tail water treatment efficiency and reduce environmental pollution.
The ecological purification pool system 1 is internally provided with aquatic animals, aquatic plants and aquatic microorganisms, wherein the aquatic animals are used for filtering and removing solid particles, the aquatic microorganisms are used for promoting the conversion and circulation of nutrient elements such as nitrogen and phosphorus, and the aquatic plants are used for slowing down the water flow speed and absorbing nutrient-rich substances in tail water.
The ecological purification pond system 1 and the pond bottom sewage system 2 can be used simultaneously, independently or alternatively, in short, the culture tail water is treated and purified by the technical means of ecological environment, and the pond bottom sewage system 2 is also subjected to purification treatment by the technical means of ecological purification, precipitation, filtration and the like, so that the pollution to the environment can be reduced, the use of chemical agents can be reduced, the quality of the treated tail water can meet the design requirement, and the technical effect of recycling the culture pond 3 can be achieved.
In some embodiments, referring to fig. 1 to 2, the ecological purification pond system 1 includes an ecological ditch 11, an ecological purification pond 12 and a water return ditch 13, wherein one end of the ecological ditch 11 is communicated with a tail water discharge end of the aquaculture pond 3 for discharging aquaculture tail water; the ecological purification tank 12 is provided with a water inlet end and a water outlet end, the water inlet end is used for being communicated with the other end of the ecological ditch 11, and the ecological purification tank 12 is used for treating and purifying culture tail water; one end of the return water channel 13 is communicated with the water outlet end of the ecological purification tank 12, the other end is communicated with the aquaculture pond 3 and used for conveying the treated and purified water into the aquaculture pond 3, and the aquaculture pond 3, the ecological channel 11, the ecological purification tank 12 and the return water channel 13 form a tail water circulating treatment and purification system. Through ecological technology means purification treatment tail water, reduce and produce the pollution to the environment, ecological purification tank 12's area is great, can satisfy normal use, or one or more aquaculture pond 3 use, realizes breeding the cyclic utilization of tail water, forms the system of cyclic treatment tail water, can also guarantee tail water treatment quality and effect simultaneously.
The ecological purifying tank 12 is a multi-nutrition-level ecological purifying tank and is used for culturing various aquatic animals and plants, the plants comprise various plants such as submerged plants, emergent plants and floating plants and various microalgae and are used for absorbing and converting nitrogen and phosphorus and other multi-purpose nutrient elements, the animals comprise herbivorous fishes and filter-feeding shellfish and are used for ingesting the plants and filtering and eating the microalgae to further convert and remove the nutrient elements in the water body. The water surface of the multi-nutrition-level ecological purification tank is provided with a plurality of waterwheels, so that the internal circulation of the water in the tank is promoted, the growth of microalgae is promoted, and the purification efficiency is improved.
The ecological purification tank 12 constructs a tortuous water channel through the partition plates, and the artificial wetland is constructed by planting aquatic plants along the water channel, so that the wetland can fully treat the culture tail water, and the purification efficiency of the wetland is improved.
The bottom of the backwater ditch 13 is seeded with filter-feeding shellfish and saprophagous clamworm, an ecological purification floating bed is constructed on the water surface, the shellfish filters and feeds solid wastes, the clamworm is utilized to promote the disturbance of the ditch bottom, promote the exchange of dissolved oxygen and nutrient substances, and the ecological floating bed absorbs soluble nitrogen-phosphorus nutrient salt to comprehensively treat the culture tail water.
Specifically, by using the ecological purification pond system 1, the occupied area of the ecological purification pond system accounts for 3-5% of the total area of the culture site.
In some embodiments, referring to fig. 1-2, the ecological purification tank 12 is populated with filter feeding organisms and planted with submerged, emergent and leafy aquatic plants, wherein the aquatic plants cover more than 80% of the area of the ecological purification tank 12. The submerged aquatic plant can be herba Swertiae Dilutae, waterweed, Goldfish algae, Foliumet Sedum, herba Eupatorii, etc.; the emergent aquatic plant can be rhizoma Nelumbinis, rhizoma Typhae, herba Oenanthes Javanicae, canna indica, etc.; the aquatic plant can be herba Ipomoeae Aquaticae, herba Eichhorniae, flos Nymphaeae, rhizoma Acori Calami, etc.
In some embodiments, referring to fig. 1 to 2, a water quality monitoring device 4 is installed at the water outlet end of the ecological purification pool 12, the water quality monitoring device 4 is used for monitoring the water quality of the water body after being treated and purified, the treatment and purification quality of the tail water can be grasped in real time, and when the requirement of the treatment quality is not met, the transportation of the treated water body into the aquaculture pond 3 can be stopped; when the requirement of treatment quality is met, the treated water body can be continuously conveyed into the aquaculture pond 3, and the reuse of tail water is realized.
Specifically, the adopted water quality monitoring device 4 can select the equipment in the prior art and can monitor the water quality information in real time.
In some embodiments, referring to fig. 1 to 2, the pond bottom drainage system 2 includes a drainage well 22, a water pumping assembly 23 and a sedimentation pond 24, the drainage well 22 is excavated beside the aquaculture pond 3 and is of a vertical shaft structure, one end of a drainage pipe 21 is communicated with the bottom of the aquaculture pond 3, the bottom of the inner side of the drainage well 22 is communicated with the other end of the drainage pipe 21, and the drainage pipe 21 is used for draining tail water in the aquaculture pond 3 into the drainage well 22; the water pumping assembly 23 is arranged at the bottom of the inner side of the sewage well 22, the water outlet end of the water pumping assembly 23 is communicated with a drain pipe 25, and the drain pipe 25 extends out of the upper end of the sewage well 22; sedimentation tank 24 is located subaerially, and in blow off pipe 21 extended to sedimentation tank 24, pump water subassembly 23 was used for extracting tail water in the blowoff well 22 and to the pump sending in sedimentation tank 24, and sedimentation tank 24 is used for deposiing tail water, and 24 lateral parts of sedimentation tank intercommunication have the wet return, and wet return one end intercommunication sedimentation tank 24, other end intercommunication aquaculture pond 3, and the water after 24 precipitations of sedimentation tank passes through the wet return and is defeated to aquaculture pond 3. The water level of the aquaculture pond 3 is lower than the height of the upper end of the sewage well 22, the height of the sedimentation tank 24 can be flush with the height of the sewage well 22, and the water pumping assembly 23 can be a water pump capable of pumping tail water. The tail water after precipitation can be recycled and used for other purposes.
A circulating system for treating aquaculture tail water can be formed between the pond bottom sewage discharging system 2 (the sewage discharging pipe 21, the sewage discharging well 22, the water pumping assembly 23 and the sedimentation tank 24) and the aquaculture pond 3. The bottom of the sedimentation basin 24 is sludge or other suspended matters, sediments and the like, and the water after sedimentation is water on the upper layer of the sludge, and the sludge can be discharged from the bottom of the sedimentation basin 24 after a period of use. A sludge outlet is arranged at the bottom of the sedimentation tank 24 and can be opened to discharge sludge.
In some embodiments, referring to fig. 1 to 2, the pond bottom sewage system 2 further includes a fish-vegetable symbiotic artificial wetland system 26, the fish-vegetable symbiotic artificial wetland system 26 is communicated with the sedimentation pond 24 through a pipeline, and the water precipitated in the sedimentation pond 24 is transported to the fish-vegetable symbiotic artificial wetland system 26 through a pipeline. A circulating system for treating the culture tail water can be formed between the pool bottom sewage discharging system 2 (the sewage discharging pipe 21, the sewage discharging well 22, the water pumping assembly 23, the sedimentation tank 24 and the fish and vegetable symbiotic artificial wetland system 26) and the culture pond 3. The fish-vegetable symbiotic artificial wetland system 26 adopts a system in the prior art, and is not described in detail herein.
In some embodiments, referring to fig. 1 to 2, the sewage system 2 further includes an external drainage channel 27, the external drainage channel 27 is communicated with the fish-vegetable symbiotic artificial wetland system 26, and tail water discharged from the fish-vegetable symbiotic artificial wetland system 26 can be transported to the external drainage channel 27. The water with the sludge can be discharged by arranging the outer discharge ditch 27.
In some embodiments, referring to fig. 1 to 2, the water return pipe is further disposed between the fish-vegetable symbiotic artificial wetland system 26 and the cultivation pond 3, and tail water discharged from the fish-vegetable symbiotic artificial wetland system 26 can be transported to the cultivation pond 3. The invention comprises a plurality of water return pipes which are arranged at different positions, so that tail water treated by the fish-vegetable symbiotic artificial wetland system 26 can be recycled for the culture pond 3.
In some embodiments, referring to fig. 1 to 2, a sewage outlet 31 is disposed at the bottom of the aquaculture pond 3, an escape-proof net 32 is disposed at the upper end of the sewage outlet 31, and one end of the sewage outlet 21 is communicated with the sewage outlet 31 and is located below the escape-proof net 32. The escape prevention net 32 may prevent fish, etc. from entering the inside of the soil outlet 31 or the soil pipe 21.
In some embodiments, referring to fig. 1 to 2, a water pump for pumping tail water is installed in the ecological ditch 11 and/or the water return ditch 13, and water can be delivered to the ecological purification tank 12 or the aquaculture pond 3 through the water pump, so that the problem of poor flow of tail water caused by a height difference is avoided.
The invention also comprises a microorganism-plant-animal comprehensive purification wetland, wherein the tail water purification substrate is constructed by using gravels, ceramic granules and silt with different particle sizes, and is used for planting herbaceous plants, culturing saprophagous clamworms and culturing multifunctional microorganisms, so that the conversion and utilization of nutrient elements in the culture tail water are promoted, and the standard discharge of the culture tail water is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Tail water treatment system that bottom of pool blowdown and ecological purification pond combine, its characterized in that includes:
the ecological purification pond system is used for communicating with the tail water discharge end of the aquaculture pond and comprehensively treating and purifying the discharged aquaculture tail water in an ecological mode;
the pond bottom sewage discharging system is arranged close to the aquaculture pond and is provided with a sewage discharging pipe used for communicating the pond bottom of the aquaculture pond, the pond bottom sewage discharging system is used for treating aquaculture tail water discharged from the aquaculture pond, the pond bottom sewage discharging system and the ecological purification pond system can convey the treated water into the aquaculture pond after treating the tail water, and the pond bottom sewage discharging system and the ecological purification pond system are mutually matched or alternately operated;
the ecological purification pond system comprises:
one end of the ecological ditch is communicated with the tail water discharge end of the aquaculture pond and is used for discharging aquaculture tail water;
the ecological purification pool is provided with a water inlet end and a water outlet end, the water inlet end is used for being communicated with the other end of the ecological ditch, and the ecological purification pool is used for treating and purifying culture tail water;
the water return channel is used for conveying the treated and purified water into the culture pond, and the culture pond, the ecological channel, the ecological purification pond and the water return channel form a tail water circulating treatment and purification system;
filter feeding organisms are cultivated in the ecological purification tank, submerged aquatic plants, emergent aquatic plants and floating-leaf aquatic plants are planted in the ecological purification tank, and the area of the ecological purification tank covered by the aquatic plants is larger than 80%.
2. The tail water treatment system combining the bottom sewage disposal and the ecological purification tank as claimed in claim 1, wherein a water quality monitoring device is installed at the water outlet end of the ecological purification tank for monitoring the water quality of the water body after being treated and purified.
3. The bottom sewage treatment and ecological purification tank combined tail water treatment system as claimed in claim 1, wherein the bottom sewage treatment system comprises:
the sewage draining well is excavated beside the aquaculture pond and is of a vertical well structure, one end of the sewage draining pipe is communicated with the bottom of the aquaculture pond, the inner bottom of the sewage draining well is communicated with the other end of the sewage draining pipe, and the sewage draining pipe is used for draining tail water in the aquaculture pond to the sewage draining well;
the water pumping assembly is arranged at the inner bottom of the sewage well, the water outlet end of the water pumping assembly is communicated with a drain pipe, and the drain pipe extends out of the upper end of the sewage well;
the sedimentation tank is located subaerially, the blow off pipe extends to in the sedimentation tank, pump water subassembly is used for the extraction tail water in the blow off well and to the pump sending in the sedimentation tank, the sedimentation tank is used for deposiing tail water, sedimentation tank lateral part intercommunication has the wet return, wet return one end intercommunication sedimentation tank, other end intercommunication breed pond, process water after the sedimentation tank deposits passes through the wet return is defeated to breed pond.
4. The tail water treatment system combining the bottom sewage disposal and the ecological purification tank as claimed in claim 3, wherein the bottom sewage disposal system further comprises a fish-vegetable symbiotic artificial wetland system, the fish-vegetable symbiotic artificial wetland system is communicated with the sedimentation tank through a pipeline, and water precipitated in the sedimentation tank is transported to the fish-vegetable symbiotic artificial wetland system through the pipeline.
5. The tail water treatment system combining the bottom sewage disposal and the ecological purification tank as claimed in claim 4, wherein the bottom sewage disposal system further comprises an outer discharge channel, the outer discharge channel is communicated with the fish-vegetable symbiotic artificial wetland system, and tail water discharged through the fish-vegetable symbiotic artificial wetland system can be conveyed to the outer discharge channel.
6. The tail water treatment system combining the bottom sewage disposal and the ecological purification tank as claimed in claim 4, wherein the water return pipe is further arranged between the fish-vegetable symbiotic artificial wetland system and the culture pond, and tail water discharged by the fish-vegetable symbiotic artificial wetland system can be conveyed to the culture pond.
7. The tail water treatment system combining the pool bottom sewage discharge and the ecological purification pool according to claim 1, wherein a sewage discharge outlet is formed in the bottom of the aquaculture pool, an escape-proof net is arranged at the upper end of the sewage discharge outlet, and one end of a sewage discharge pipe is communicated with the sewage discharge outlet and is positioned below the escape-proof net.
8. The bottom sewage disposal and ecological purification tank combined tail water treatment system according to claim 1, wherein a water pump for pumping tail water is installed in the ecological ditch and/or the return water ditch.
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