CN110720420A - Take water farming systems of anaerobism denitrification facility - Google Patents
Take water farming systems of anaerobism denitrification facility Download PDFInfo
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- CN110720420A CN110720420A CN201911209770.6A CN201911209770A CN110720420A CN 110720420 A CN110720420 A CN 110720420A CN 201911209770 A CN201911209770 A CN 201911209770A CN 110720420 A CN110720420 A CN 110720420A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000009313 farming Methods 0.000 title description 2
- 239000010865 sewage Substances 0.000 claims abstract description 48
- 238000009360 aquaculture Methods 0.000 claims abstract description 26
- 244000144974 aquaculture Species 0.000 claims abstract description 26
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 16
- 230000003134 recirculating effect Effects 0.000 claims abstract description 14
- 230000001954 sterilising effect Effects 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 8
- 241000251468 Actinopterygii Species 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 6
- 235000013311 vegetables Nutrition 0.000 claims abstract description 6
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 5
- 239000006228 supernatant Substances 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 17
- 239000013049 sediment Substances 0.000 claims description 11
- 229910002651 NO3 Inorganic materials 0.000 claims description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 8
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 244000052616 bacterial pathogen Species 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 3
- 238000006065 biodegradation reaction Methods 0.000 abstract description 2
- 239000013505 freshwater Substances 0.000 abstract description 2
- 239000013535 sea water Substances 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a water culture system with an anaerobic denitrification device, which comprises a circulating water culture pond, a micro-filter, a water pump, a denitrification device and CO2Removing a trickling biofilter, a movable biofilter bed, an ultraviolet sterilization disinfection machine, a high-efficiency pure oxygen mixer and a sedimentation tank; the anaerobic denitrification device is cylindrical or cuboid, utilizes the carbon source released by solid denitrification as biological filler and a carrier of anaerobic denitrifying bacteria, and can provide the carbon source and transfer electrons for denitrification through biodegradation; the sedimentation tank sewage collection system is used for collecting periodical sewage drainage liquid of the vortex solid-liquid separator, the micro-filter and the biological filter, supernatant of the sedimentation tank sewage collection system can be used in the circulating water culture system again, and the sedimentation liquid can be used for squeezing to be used as vegetable organic fertilizer; the invention realizes zero discharge of the industrial recirculating aquaculture system in a real sense and is suitable for high-density industrial recirculating aquaculture of various freshwater and seawater high-quality fish species.
Description
Technical Field
The invention relates to the field of aquaculture, in particular to a aquaculture system with an anaerobic denitrification device.
Background
With the environmental and environmental protection pressure, the net cages of the fishrows cultured in lakes and offshore are dismantled, the culture ponds in the direct discharging mode are closed, and the pressure of aquaculture is increased. The closed factory circulating water culture is a sustainable development mode which can realize water body recycling and has no sewage discharge.
At present, factory circulating water culture systems researched and applied at home and abroad are various, but the zero emission standard is almost zero in a real sense; firstly, the system design is not mature enough, the equipment stability is poor, the ammonia nitrogen, nitrite nitrogen and the like in the water body exceed standards, and the problem that a large amount of aquaculture sewage is directly discharged due to the fact that a large amount of water is changed is solved; secondly, the problem of nitrate accumulation generated by nitration reaction due to lack of a mature anaerobic denitrification system device is solved by changing a large amount of water, and the poisoning influence on the fish caused by the accumulation of a certain amount of nitrate; at present, the problem of nitrate accumulation in a water body is solved by using a fish-vegetable symbiotic system and is solved by vegetable absorption, firstly, the absorption rate is low due to more influence factors, secondly, the occupied area is large, and the operation difficulty is higher in actual production.
In conclusion, the current situation severely restricts the popularization and application of domestic recirculating aquaculture. Therefore, it is necessary to enhance and improve the design and application of the recirculating aquaculture system and increase the competitiveness of recirculating aquaculture.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the water culture system with the anaerobic denitrification device, which has the advantages of simple structure, convenience in operation and practicability.
The invention is realized by the following modes:
the utility model provides a take aquaculture system of anaerobic denitrification device which characterized in that: comprises a circulating water culture pond, a micro-filter, a large-flow low-lift circulating water pump and CO2A removal trickling biofilter, a movable biofilter, an ultraviolet sterilization disinfector and a high-efficiency pure oxygen mixer,
the CO is2The planing trickling biofilter is positioned right above the front end of the mobile biofilter bed; the CO is2A cotton-free biological filter ball is arranged in the planing trickling biological filter; suspended particle biological fillers are filled in the mobile biological filter bed;
the circulating water culture pond is of a three-way sewage discharge structure, the bottom of the circulating water culture pond is provided with a double-pipeline sewage discharge structure, and a main water discharge pipeline is communicated with the micro-filter; the bottom sewage collecting pipeline firstly flows into a vortex solid-liquid separator, and the upper-layer filtrate of the vortex solid-liquid separator flows into a micro-filter through a main drainage pipeline; the surface sewage of the recirculating aquaculture pond flows into a main drainage pipeline through a water level control sewage collection tank and finally flows into a micro-filter; then flows into a pump pool; then the water body is lifted to CO by a large-flow low-lift circulating water pump2Removing trickling biofilter by planing, passing through CO2The water body after the trickling biofilter is planed enters a mobile biofilter bed;
the pump pool is connected with an anaerobic denitrification device;
the water purified by the movable biological filter bed enters an ultraviolet sterilization disinfection machine, the water flowing out of the ultraviolet sterilization disinfection machine enters a high-efficiency pure oxygen mixer, and after pure oxygen mixing, the water automatically flows back to the recirculating aquaculture pond, so that a fully-closed recirculating aquaculture system is formed.
The sewage treatment system further comprises a sediment sewage collection tank which is respectively connected with a sewage discharge outlet of the micro-filter, a regular sewage discharge outlet of the mobile biological filter and a sewage discharge outlet of a vortex solid-liquid separator connected with the circulating water culture tank through pipelines; the supernatant fluid of the sedimentation dirt collection tank flows into the micro-filter through the circulating water pump and then enters the circulating water culture system again; and the lower layer of the precipitation liquid in the precipitation and sewage collection tank is used for squeezing the lower layer of the precipitation liquid into the vegetable organic fertilizer through periodic sewage discharge.
Furthermore, the anaerobic denitrification device comprises a device body, a water inlet is arranged below the device body, and the water inlet is connected with the pump pool through a circulating denitrification water pump; a water outlet is arranged above the device body and is connected with the pump pool through a pipeline; an upper partition plate and a lower partition plate are arranged in the device body, a filter cap is arranged on the partition plates, and a solid denitrification carbon source release biological filler is filled between the two partition plates.
Furthermore, the filter caps on the upper partition plate and the lower partition plate in the device body are fixed in opposite directions.
Further, the anaerobic denitrification device is a cylinder or a cuboid.
Furthermore, an observation port is arranged right in front of the device body and is used as a feeding port for releasing the carbon source biological filler by solid denitrification; the device body is provided with a middle filler cleaning port and a bottom drain outlet; the top of the device body is provided with a sealing cover plate, and the cover plate is provided with an air outlet.
Compared with the prior art, the invention has the beneficial effects that: 1. the anaerobic denitrification device is additionally arranged, so that the problem of accumulation of nitrate and nitrite in the aquaculture water body can be solved, and the water change amount and direct discharge amount are reduced.
2. In the anaerobic denitrification device, a carbon source released by solid denitrification is used as a biological filler, is insoluble in water and is used as a carrier of anaerobic denitrifying bacteria, and meanwhile, the carbon source and transfer electrons can be provided for denitrification through biodegradation without additionally supplementing the carbon source required by denitrification.
3. The sediment sewage collecting system is additionally arranged and used for collecting the periodic sewage discharge of the vortex solid-liquid separator, the micro-filter and the biological filter, the supernatant of the sediment sewage collecting system can be used in the circulating water culture system again, the sediment liquid can be used for squeezing to be used as vegetable organic fertilizer, and the environmental pollution caused by direct sewage discharge is greatly reduced.
4. The invention truly realizes zero discharge of the factory circulating water culture system, belongs to the initiative at home and abroad and has obvious innovation; the industrial circulating water system is suitable for high-density industrial circulating water culture of various high-quality fresh water and seawater fish species.
Drawings
FIG. 1 is a top view of the inventive structure;
FIG. 2 is a schematic structural diagram of the anaerobic denitrification apparatus of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the embodiments of the present invention are not limited to the following examples, and that any changes and/or modifications made thereto will fall within the scope of the present invention.
Example (b):
a water culture system with an anaerobic denitrification device is shown in figure 1 and comprises a circulating water culture pond 1, a micro-filter 2, a large-flow low-lift circulating water pump 3 and CO2A removal trickling biofilter 5, a movable biofilter 6, an ultraviolet sterilization disinfector 7 and a high-efficiency pure oxygen mixer 8, wherein the CO is2The planed trickling biofilter 5 is positioned right above the front end of the moving biofilter bed 6; the CO is2A cotton-free biological filter ball is arranged in the planing trickling biological filter 5; the movable biological filter bed 6 is filled with suspended particlesBiological fillers; the recirculating aquaculture pond 1 is of a three-way sewage discharge structure, the bottom of the recirculating aquaculture pond is provided with a double-pipeline sewage discharge structure, and a main water discharge pipeline 11 is communicated with the micro-filter 2; the bottom sewage collecting pipeline 12 firstly flows into the vortex solid-liquid separator 10, and the upper-layer filtrate of the vortex solid-liquid separator 10 flows into the micro-filter 2 through the main drainage pipeline 11; the surface sewage discharged from the circulating water culture pond 1 flows into the main drainage pipeline 11 through the water level control sewage collecting tank 13 and finally flows into the micro-filter 2; the micro-filter 2 filters the residual bait, feces and other particulate matters in the water body, and then flows into the pump pool 31; then the water body is lifted to CO by a large-flow low-lift circulating water pump 32Shaving off the trickling filter 5, passing through the CO2The water body after the trickling biofilter 5 is planed enters a mobile biofilter 6; the pump pool 31 is connected with an anaerobic denitrification device 4, and harmful substances including ammonia nitrogen, nitrite, nitrate and hydrogen sulfide are removed through the nitrification reaction of microorganisms; the water purified by the movable biological filter bed 6 enters an ultraviolet sterilization disinfection machine 7, and the ultraviolet sterilization disinfection machine 7 sterilizes the water to remove microorganisms of pathogenic bacteria harmful to fishes in the water; the water flowing out of the ultraviolet sterilization disinfection machine 7 enters a high-efficiency pure oxygen mixer 8, is mixed with pure oxygen and then automatically flows back to the circulating water culture pond 1 to form a fully-closed circulating water culture system.
In the embodiment, the device also comprises a precipitation sewage collection tank 9, wherein the precipitation sewage collection tank 9 is respectively connected with a sewage discharge outlet of the micro-filter 2, a regular sewage discharge outlet of the mobile biological filter 6 and a sewage discharge outlet of a vortex solid-liquid separator 10 connected with the circulating water culture tank 1 through pipelines; the supernatant of the precipitation sewage collection tank 9 flows into the micro-filter 2 through the circulating water pump 91, and enters the recirculating aquaculture system again after separation and filtration, biological nitration reaction and ultraviolet disinfection; the lower layer of the sediment liquid of the sediment sewage collection tank 9 is used for squeezing into the vegetable organic fertilizer through periodical sewage discharge.
In this embodiment, as shown in fig. 2, the anaerobic denitrification device 4 comprises a device body, a water inlet 41 is arranged below the device body, and the water inlet 41 is connected with the pump pool 31 through a circulating denitrification water pump 42; a water outlet 43 is arranged above the device body, and the water outlet 43 is connected with the pump pool 31 through a pipeline; an upper partition plate 44 and a lower partition plate 44 are arranged in the device body, a filter cap 441 is arranged on each partition plate 44, and a solid denitrification carbon source release biological filler is filled between the two partition plates 44.
In this embodiment, the filter caps 441 on the upper and lower partition plates 44 in the device body are fixed in opposite directions, allowing water to pass through without loss of biological filler.
In this embodiment, the anaerobic denitrification apparatus 4 is a cylinder or a cuboid.
In this embodiment, the front of the apparatus body is provided with an observation port 46, which is used as a feeding port for releasing the carbon source biological filler by solid denitrification; the device body is provided with a middle filler cleaning port 47 and a bottom sewage draining port 48; a sealing cover plate 49 is arranged at the top of the device body, and an air outlet 50 is formed in the cover plate 49; the flow or flow rate entering the anaerobic denitrification device 4 is controlled by the circulating denitrification water pump 42, so that the interior of the anaerobic denitrification device 4 is in a low-oxygen or anaerobic state, nitrite and nitrate are converted into nitrogen by denitrifying bacteria and released into the air through the air outlet 50, and the harm of the accumulation of the nitrite and the nitrate in the water body to the fish body is greatly reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a take aquaculture system of anaerobic denitrification device which characterized in that: comprises a circulating water culture pond (1), a micro-filter (2), a large-flow low-lift circulating water pump (3), and CO2A planing trickling biofilter (5), a movable biofilter (6), an ultraviolet sterilization disinfector (7) and a high-efficiency pure oxygen mixer (8),
the CO is2The planed trickling biofilter (5) is positioned right above the front end of the movable biofilter bed (6); the CO is2A cotton-free biological filter ball is arranged in the planing trickling biological filter (5); suspended particle biological fillers are filled in the mobile biological filter bed (6);
the recirculating aquaculture pond (1) is of a three-way sewage discharge structure, the bottom of the recirculating aquaculture pond is provided with a double-pipeline sewage discharge structure, and a main water discharge pipeline (11) is communicated with the micro-filter (2); the bottom sewage collecting pipeline (12) firstly flows into the vortex solid-liquid separator (10), and the upper-layer filtrate of the vortex solid-liquid separator (10) flows into the micro-filter (2) through the main drainage pipeline (11); the surface sewage of the recirculating aquaculture pond (1) flows into a main drainage pipeline (11) through a water level control sewage collecting tank (13) and finally flows into a micro-filter (2); the micro-filter (2) filters the residual bait, excrement and other particulate matters in the water body, and then flows into the pump pool (31); then the water body is lifted to CO by a large-flow low-lift circulating water pump (3)2Planing off the trickling biofilter (5), passing through CO2The water body after the trickling biofilter (5) is planed enters a mobile biofilter (6);
the pump pool (31) is connected with an anaerobic denitrification device (4) which removes harmful substances including nitrite and nitrate through the anaerobic denitrification reaction of microorganisms;
the water purified by the movable biological filter bed (6) enters an ultraviolet sterilization disinfection machine (7), and the ultraviolet sterilization disinfection machine (7) sterilizes the water to remove microorganisms of pathogenic bacteria harmful to fishes in the water; the water flowing out of the ultraviolet sterilization disinfection machine (7) enters a high-efficiency pure oxygen mixer (8) to be mixed with pure oxygen and then automatically flows back to the circulating water culture pond (1) to form a fully-closed circulating water culture system.
2. The aquaculture system with the anaerobic denitrification device of claim 1, wherein: the device also comprises a sediment and sewage collection tank (9), wherein the sediment and sewage collection tank (9) is respectively connected with a sewage discharge outlet of the micro-filter (2), a regular sewage discharge outlet of the mobile biological filter (6) and a sewage discharge outlet of a vortex solid-liquid separator (10) connected with the circulating water culture tank (1) through pipelines; supernatant fluid of the sedimentation dirt collection tank (9) flows into the micro-filter (2) through the circulating water pump (91) and enters the circulating water culture system again; the lower layer of the sediment liquid in the sediment and sewage collection tank (9) is used for squeezing the sediment liquid into the vegetable organic fertilizer through periodical sewage discharge.
3. The aquaculture system with the anaerobic denitrification device of claim 1, wherein: the anaerobic denitrification device (4) comprises a device body, a water inlet (41) is arranged below the device body, and the water inlet (41) is connected with the pump pool (31) through a circulating denitrification water pump (42); a water outlet (43) is arranged above the device body, and the water outlet (43) is connected with the pump pool (31) through a pipeline; an upper partition plate (44) and a lower partition plate (44) are arranged in the device body, a filter cap (441) is arranged on each partition plate (44), and a solid denitrification carbon source release biological filler is filled between the two partition plates (44).
4. A aquaculture system with an anaerobic denitrification facility according to claim 3 wherein: the filter caps (441) on the upper partition plate (44) and the lower partition plate (44) in the device body are fixed in the opposite direction, so that water is allowed to pass through, and the biological filler is not lost.
5. A aquaculture system with an anaerobic denitrification facility according to claim 3 wherein: the anaerobic denitrification device (4) is a cylinder or a cuboid.
6. A aquaculture system with an anaerobic denitrification facility according to claim 3 wherein: an observation port (46) is arranged right in front of the device body and is used as a feeding port for releasing the carbon source biological filler by solid denitrification; the device body is provided with a middle filler cleaning port (47) and a bottom sewage draining port (48); the top of the device body is provided with a sealing cover plate (49), and the cover plate (49) is provided with an air outlet (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911209770.6A CN110720420A (en) | 2019-12-01 | 2019-12-01 | Take water farming systems of anaerobism denitrification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911209770.6A CN110720420A (en) | 2019-12-01 | 2019-12-01 | Take water farming systems of anaerobism denitrification facility |
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| Publication Number | Publication Date |
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| CN110720420A true CN110720420A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911209770.6A Withdrawn CN110720420A (en) | 2019-12-01 | 2019-12-01 | Take water farming systems of anaerobism denitrification facility |
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| CN (1) | CN110720420A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111657207A (en) * | 2020-05-22 | 2020-09-15 | 太原市邦侬农业发展有限公司 | Fish and vegetable symbiotic system and special photosynthetic bacteria agent for aquaculture |
| CN113412810A (en) * | 2021-07-23 | 2021-09-21 | 山西省水产科学研究所 | Canvas culture pond water purifies cyclic utilization device |
| CN116267763A (en) * | 2023-04-04 | 2023-06-23 | 中集渔业科技有限公司 | Circulating water culture system |
-
2019
- 2019-12-01 CN CN201911209770.6A patent/CN110720420A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111657207A (en) * | 2020-05-22 | 2020-09-15 | 太原市邦侬农业发展有限公司 | Fish and vegetable symbiotic system and special photosynthetic bacteria agent for aquaculture |
| CN113412810A (en) * | 2021-07-23 | 2021-09-21 | 山西省水产科学研究所 | Canvas culture pond water purifies cyclic utilization device |
| CN116267763A (en) * | 2023-04-04 | 2023-06-23 | 中集渔业科技有限公司 | Circulating water culture system |
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