CN209882835U - Ecological circulating purification system for seawater culture of Penaeus vannamei Boone - Google Patents
Ecological circulating purification system for seawater culture of Penaeus vannamei Boone Download PDFInfo
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- CN209882835U CN209882835U CN201822085324.6U CN201822085324U CN209882835U CN 209882835 U CN209882835 U CN 209882835U CN 201822085324 U CN201822085324 U CN 201822085324U CN 209882835 U CN209882835 U CN 209882835U
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Abstract
The utility model discloses a south America white prawn mariculture ecological cycle purification system, the technical scheme main points of which are that the system comprises a water system and a purification system, the system comprises a prawn intensive culture pond, a primary precipitation unit, a contact oxidation unit, a shellfish ecological pond unit and a plug-flow type constructed wetland unit, a three-way valve is arranged between the prawn intensive culture pond and the contact oxidation unit, one end of the three-way valve is connected with the prawn intensive culture pond, the other end is connected with the primary precipitation unit, the other end is used for sludge discharge, the primary precipitation unit is connected with the contact oxidation unit, the contact oxidation unit is connected with the shellfish ecological pond unit, the shellfish ecological pond unit is connected with the plug-flow type constructed wetland unit, the plug-flow type constructed wetland unit adopts a lifting pump to convey water back to the prawn intensive culture pond to form a closed loop, the system can fully play the advantages of three technologies through coupling integration biological treatment technology, ecological restoration technology, achieves the composite purification effect and promotes the maximization of comprehensive benefits.
Description
Technical Field
The utility model relates to a compound ecological purification technical field of quality of water, more specifically the saying so relates to a south america white prawn mariculture ecological cycle clean system.
Background
The wave of the penaeus vannamei boone cultivation is raised in various places of China, and the cultivation mode is upgraded from an extensive cultivation mode to an intensive modern cultivation mode. However, the factors that restrict mariculture and the problems of the conventional culture modes are also becoming more and more prominent: the marine environment pollution seriously restricts the water for mariculture, and the culture risk is relatively high. The mariculture losses due to disease problems are severe every year: taking prawns as an example, only 11 viral sources are discovered at present, wherein the morbidity and mortality rate of white spot syndrome viruses (WSSV and taura syndrome virus TSV) is as high as 80-100%, and various marine zooplankton prove to be carriers and propagators of the WSSV, and the risk of introducing the source of the disease into the traditional high-throughput water-changing cultivation is large.
In recent years, the technology of ecological seawater treatment has also been introduced into mariculture systems, and many studies have been made on the purification effect of microalgae or macroalgae, such as reducing the concentration of nutrients by controlling the biomass of algae, maintaining dissolved oxygen in water, and reducing the risk of suffocation and water quality deterioration of the culture objects in the water in which macroalgae and the culture objects are co-cultured. However, the method has the defects that the macroalgae are relatively influenced by various factors such as illumination, water flow, seasonality and the like in the culture wastewater treatment process, the unicellular algae have limited treatment capacity, and the fluctuation of dissolved oxygen in the water body is easily caused. The research that salt-tolerant plants and aquatic ferns are also used in the treatment of aquaculture wastewater has also been reported, plants are used as a ring in an intensive or closed aquaculture system to absorb and filter nutrient salts so as to achieve the purpose of purifying water quality, and some plants have economic values and can improve the aquaculture economic benefits. However, the plants in the system are still limited by seasons and the economic output value is limited.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a south america white shrimp mariculture ecological cycle clean system, this system can realize circulating purification waste water, and economic output is worth highly.
In order to achieve the above purpose, the utility model provides a following technical scheme: a seawater culture ecological circulation purification system for Penaeus vannamei Boone is characterized in that a circulation system comprises a water utilization system and a purification system, the seawater culture ecological circulation purification system comprises a shrimp intensive culture pond, a primary sedimentation pond unit, a contact oxidation unit, a shellfish ecological pond unit and a plug-flow type constructed wetland unit, a three-way valve is arranged between the shrimp intensive culture pond and the contact oxidation unit, one end of the three-way valve is connected with the shrimp intensive culture pond, the other end of the three-way valve is connected with the primary sedimentation pond unit, the other end of the three-way valve is used for sludge discharge, the effluent of the primary sedimentation pond unit is connected with the contact oxidation unit, the contact oxidation unit is connected with the shellfish ecological pond unit, the shellfish ecological pond unit is connected with the plug-flow type constructed wetland unit, and the plug-flow type constructed.
Further, after the seawater culture effluent enters a primary sedimentation tank unit, a large amount of suspended matters are removed through sedimentation, and meanwhile, part of granular total nitrogen and total phosphorus are removed; the effluent of the primary sedimentation tank unit enters a contact oxidation unit, and the contact oxidation unit realizes ammoniation and nitration reactions through the action of microorganisms to convert ammonia nitrogen and nitrite nitrogen into nitrate nitrogen which is relatively harmless to mariculture; and the effluent of the contact oxidation unit enters a shellfish ecological pond unit to condition the contact oxidation effluent, shellfish in the shellfish ecological pond unit ingest suspended substances, floating island plants and phytoplankton absorb nitrogen and phosphorus pollutants, the effluent of the shellfish ecological pond unit enters a plug-flow type constructed wetland unit, and a substrate filled in the plug-flow type constructed wetland unit can absorb and enrich nitrogen and phosphorus pollutants in water.
Furthermore, the primary sedimentation tank unit is composed of sedimentation inclined pipes.
Further, be provided with the holding tank in the contact oxidation unit, be provided with biological biofilm culturing in the holding tank, biological biofilm culturing one end holding tank lateral wall fixed connection, biological biofilm culturing adopts the three-dimensional filler of elasticity, and this filler alternates with the strand silk that polyolefine and polyamide are the material to fix on corrosion-resistant, high strength central rope, and the strand silk is three-dimensional align to grid and is the radiation state.
Further, a right-side ecological floating island is arranged in the shellfish ecological pond unit, floating island plants can be picked and planted in the floating island, and the ratio of the coverage area of the ecological floating island plants to the area of the shellfish ecological pond unit is 1: 5-1: 10.
Furthermore, the plug-flow type artificial wetland unit comprises an undercurrent artificial wetland consisting of oyster shells and gravels, the thickness of a wetland filler layer is 0.1-0.9 m, the thickness of a surface soil layer is 0.05-0.15 m, the selected plants can adopt Kandelia candel and China wood flowers, and the planting density is 10 plants/m2About 50 strains/m2。
Furthermore, the purification device comprises a filter layer and an electrolytic layer, the filter layer is communicated with the electrolytic layer, a plurality of drainage areas and an accommodating cavity are arranged in the filter layer, the drainage areas are connected in an S-shaped manner, a filter plate for filtering impurities is arranged at the joint of any two adjacent drainage areas, the drainage areas are connected with a water inlet, and the side wall of the accommodating cavity is connected with a water outlet.
Furthermore, an electrolytic cell is arranged in the electrolytic layer, a water inlet pipeline and a water outlet pipeline are arranged on the electrolytic cell, the water outlet is connected with the water inlet pipeline, and a one-way valve is arranged between the water outlet and the water inlet pipeline.
Furthermore, the working voltage in the electrolytic cell is 2V-18V, the current intensity is 1-5000A, and the strong oxide generated by electrolysis of the electrolytic cell can kill plankton, microorganisms and viruses in the raw water and dissolve the plankton in the water under the action of an electric field, so that colloidal substances, charged particles, algae, killed bacteria and the like are prevented from forming larger particles.
The utility model has the advantages that:
1. the seawater culture effluent enters a primary sedimentation tank unit to remove a large amount of suspended matters and part of granular total nitrogen and total phosphorus, a contact oxidation unit realizes ammoniation and nitration reaction through microbial action to convert ammonia nitrogen and nitrite nitrogen into nitrate nitrogen which is relatively harmless to seawater culture, harmful substances in a water body are reduced, shellfish in a shellfish ecological pond unit ingest suspended substances, floating island plants and phytoplankton can absorb nitrogen and phosphorus pollutants, a substrate filled in a plug-flow type artificial wetland unit can absorb the nitrogen and phosphorus pollutants in the enriched water, the wetland plants absorb the enriched nitrogen and phosphorus pollutants, dissolved oxygen in the water is further increased through root system oxygen secretion action and wetland internal pipeline aeration action, and the water after the circular treatment flows back to a shrimp fine culture pond again to complete the purification of the water body.
2. The inclined pipe has an inclined angle, and water flow can flow downwards along the length direction of the inclined pipe to flow into the contact oxidation unit by virtue of gravity.
3. The shellfish ecological pond unit is mainly used for culturing filter-feeding marine economic shellfish, floating island plants are also planted in the shellfish filter-feeding pond and used as supplement of shellfish filter-feeding utilization culture wastewater, and the shellfish filter-feeding utilization culture wastewater and the floating island plants supplement each other and can jointly degrade nutritive salt in a water body.
4. The plug-flow type artificial wetland unit is an undercurrent artificial wetland consisting of oyster shells, gravels and the like, plants such as Kandelia candel and Tung flower are planted in the wetland, and rich nutrient substances in seawater flowing through the salt-tolerant plant wetland can be absorbed and settled to achieve the purpose of purifying water quality.
5. The filter layer can carry out preliminary filtration with rivers, separates some impurity and rivers, and the electrolysis cell can go out strong oxidizing substance through the method electrolysis of microelectrolysis, can kill plankton, microorganism and virus in the former aquatic.
Drawings
FIG. 1 is a schematic view of a circulation system;
FIG. 2 is a schematic view of a purification apparatus;
FIG. 3 is a top view of a filter layer;
FIG. 4 is a graph showing the variation of the effluent quality of the treatment unit;
FIG. 5 is a graph showing biofilm formation within the housing chamber.
Reference numerals: 1. a shrimp intensive culture pond; 12. a primary sedimentation tank unit; 121. a settling inclined tube; 13. a contact oxidation unit; 131. accommodating grooves; 132. biofilm formation; 14. a shellfish ecological pond unit; 15. a plug flow type constructed wetland unit; 2. a three-way valve; 3. a purification device; 31. a filter layer; 311. a diversion area; 312. an accommodating chamber; 32. an electrolytic layer; 33. an electrolytic cell; 4. a filter plate; 5. a water inlet; 6. a water outlet; 7. a water inlet pipe; 8. a water outlet pipeline; 9. a one-way valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1 to 5, the seawater culture ecological cycle purification system for penaeus vannamei boone in this embodiment includes a water utilization system and a purification system, the seawater culture ecological cycle purification system includes a shrimp intensive culture pond 1, a primary sedimentation pond unit 12, a contact oxidation unit 13, a shellfish ecological pond unit 14 and a plug-flow type artificial wetland unit 15, a three-way valve 2 is disposed between the shrimp intensive culture pond 1 and the contact oxidation unit 13, one end of the three-way valve 2 is connected to the shrimp intensive culture pond 1, the other end is connected to the primary sedimentation pond unit, and the other end is used for sludge discharge, the water output of the primary sedimentation pond unit 12 is connected to the contact oxidation unit 13, the contact oxidation unit 13 is connected to the shellfish ecological pond unit 14, the shellfish ecological pond unit 14 is connected to the plug-flow type artificial wetland unit, and the plug-flow type artificial wetland unit 15 uses a lift pump to deliver water back to the shrimp intensive culture.
The system has been operated for 2 years so far, and experiences a Penaeus vannamei Boone breeding test of 4 periods, and the operation effect shows that: the water circulation rate of the system can reach more than 95 percent, the system has obvious removal effect on ammonia nitrogen, nitrite nitrogen, nitrate salt, COD and SS, the maximum yield of the penaeus vannamei boone reaches 3277.8 kg/mu, meanwhile, the survival rate of the scapharca subcrenata in the shellfish pool reaches 96.1 percent, and the weight growth rate is 60.1 percent; taking the later period (70-100 d) of the breeding with the largest pollution load as an example, under the condition that the treated water amount is 1.5m3/h, the treated effluent ammonia nitrogen is less than 0.3mg/L, the nitrite is less than 0.2mg/L, the nitrate nitrogen is less than 1.2mg/L, and the SS is less than 15mg/L, so that the water quality safety of the prawn intensive culture pond is ensured, the water flows from prawn intensive culture sugar through a three-way valve to flow into a primary sedimentation tank unit, part of sludge is precipitated and discharged through another valve port, the water in the primary sedimentation tank unit 12 enters a contact oxidation unit 13 and then enters a shellfish ecological pond unit, the water in the shellfish ecological pond unit respectively flows into a plug flow type artificial wetland unit I, a plug flow type artificial wetland unit II and a plug flow type artificial wetland unit III, the water in the plug flow type artificial wetland unit 15 flows along a certain direction, and the sewage is purified under the combined action of water-resistant plants and soil, and the water after the evolution is finished flows into the shrimp intensive culture pond 1 again by using a lifting pump to finish the reutilization of the water flow.
As a specific embodiment of improvement, the seawater culture effluent enters the primary sedimentation tank unit 12 to be precipitated and removed with a large amount of suspended matters, and meanwhile, part of granular total nitrogen and total phosphorus are removed; the effluent of the primary sedimentation tank unit 12 enters a contact oxidation unit 13, and the contact oxidation unit 13 realizes ammoniation and nitration reactions through the action of microorganisms to convert ammonia nitrogen and nitrite nitrogen into nitrate nitrogen which is relatively harmless to mariculture; the effluent of the contact oxidation unit 13 enters the shellfish ecological pond unit 14 to condition the contact oxidation effluent, shellfish in the shellfish ecological pond unit 14 ingest suspended substances, floating island plants and phytoplankton absorb nitrogen and phosphorus pollutants, the effluent of the shellfish ecological pond unit 14 enters the plug-flow type artificial wetland unit 15, and the substrate filled in the plug-flow type artificial wetland unit 15 can absorb nitrogen and phosphorus pollutants in the enriched water.
In the embodiment, the floor area of the shrimp intensive culture pond 1 can be set to 30m2, the floor area of the primary sedimentation pond unit 12 can be set to 1m2, the floor area of the contact oxidation unit 13 can be set to 4m2, the floor area of the shellfish ecological pond unit 14 can be set to 25m2, the floor area of the plug-flow type artificial wetland unit 15 can be set to 15m2, the effluent of the contact oxidation unit 13 enters the shellfish ecological pond unit 14 to condition the contact oxidation effluent, shellfish in the shellfish ecological pond unit 14 ingests suspended substances, floating island plants and phytoplankton absorb nitrogen and phosphorus pollutants, and meanwhile, the oxygen-increasing machine reoxyfies the water body; the substrate filled in the plug-flow type artificial wetland unit 15 can absorb nitrogen and phosphorus pollutants in the enriched water, and the wetland plants absorb the enriched nitrogen and phosphorus pollutants, and further increase the dissolved oxygen in the water through the root system oxygen secretion effect and the pipeline aeration effect in the wetland; the water after the circular treatment flows back to the shrimp intensive culture pond 1 again, four indexes of ammonia nitrogen, nitrite nitrogen, nitrate, active phosphate and the like of the circulating water of the system are monitored, an obvious removal effect is found, the circulating rate of the system water reaches more than 95 percent, and the treated water amount is 1.5m3And h, ensuring the water quality safety of the prawn intensive culture pond, and the test data is as follows: .
Composite purification effect of circulation system
| Index (I) | Nitrate salt | Nitrite salt | Ammonia nitrogen | Active phosphate salt |
| Seawater inflow | 0.06±0.03 | 0.08±0.02 | 0.05±0.02 | 0.05±0.01 |
| Effluent of prawn pool | 4.83±1.67 | 5.59±2.14 | 3.09±1.27 | 1.47±0.63 |
| Effluent of contact oxidation unit | 2.28±0.87 | 1.59±0.41 | 1.07±0.39 | 0.34±0.15 |
| Shellfish ecological pond effluent | 0.44±0.20 | 0.25±0.14 | 0.16±0.06 | 0.09±0.03 |
| Effluent of constructed wetland | 0.05±0.02 | 0.06±0.02 | 0.03±0.01 | 0.02±0.01 |
According to the monitoring results, after the culture wastewater in the ecological circulating system is recycled, the water quality detection index is far lower than the seawater inflow water quality, and the requirement of seawater aquaculture recycling can be completely met.
As a modified specific embodiment, the primary sedimentation tank unit 12 is composed of a sedimentation inclined pipe 121.
The cross-sectional area of the inclined settling tube 121 is 1m2The material can be polypropylene honeycomb inclined tube, and the water flow can flow downwards along the length direction of the inclined tube to flow into the contact oxidation unit 13 by gravity.
As a modified specific embodiment, an accommodating tank 131 is arranged in the contact oxidation unit 13, a biological hanging film 132 is arranged in the accommodating tank 131, one end of the biological hanging film 132 is fixedly connected with the side wall of the accommodating tank 131, the biological hanging film 132 adopts an elastic three-dimensional filler, and the filler fixes strands made of polyolefins and polyamides on a corrosion-resistant and high-strength central rope in a penetrating manner, wherein the strands are arranged in a three-dimensional and uniform manner and in a radiation state.
The material hanging film combined filler is developed on the basis of soft filler and semi-soft filler, and has the structure that yarns made of polyolefin and polyamide are fixed on a ring loop and are uniformly distributed along a central rope; the inner ring is the snowflake-shaped plastic branch, which can be used for hanging the membrane and effectively cutting bubbles, improves the transfer rate and the utilization rate of oxygen, enables the water-gas biomembrane to be fully exchanged, enables organic matters in water to be efficiently treated, and enables the plastic branch to catch some large-volume impurities in water flow, thereby changing a water source to a certain extent.
As a specific embodiment of improvement, a positive side type ecological floating island is arranged in the shellfish ecological pond unit 14, floating island plants can be picked and planted in the floating island, and the ratio of the coverage area of the ecological floating island plants to the area of the shellfish ecological pond unit is 1: 5-1: 10.
The shellfish ecological pond unit 14 mainly carries out the breed of filter-feeding ocean economy shellfish, the breed kind can include the tegillarca granosa, the arca subcrenata, sea melon seed, the green clam, the meretrix, the crust clam, mussel razor clam etc. can also plant the chinampa plant in the shellfish filter-feeding pond, the ecological chinampa of hexagonal type, the length of side sets up to 30cm, the material is polystyrene plastics, form by the concatenation of the equal hexagon of 60 areas, place a basket of flowers plant in every hexagon, ecological chinampa plant coverage area accounts for the 10% of shellfish ecological pond to this utilizes the supplementary of aquaculture waste water as shellfish filter-feeding, play synergistic effect, degrade nutritive salt in the water body jointly. Filter-feeding or scrape-feeding fishes such as mullets and the like are cultured in the ecological purification pond in a proper amount, and the yield benefit is increased while the water quality is cleaned by filtering and feeding microalgae in the ecological purification area.
As a specific embodiment of improvement, the plug-flow type artificial wetland unit 15 comprises an undercurrent artificial wetland consisting of oyster shells and gravels, the thickness of a wetland filler layer is 0.1-0.9 m, the thickness of a topsoil layer is 0.05-0.15 m, selected plants can adopt Kandelia candel and Tung flowers, and the planting density is 10 plants/m2About 50 strains/m2。
The Kandelia candel and the Kalopanax pictus nakai can absorb and settle rich nutrient substances in seawater flowing through the salt-tolerant plant wetland, so that the aim of purifying water quality is fulfilled.
As an improved specific embodiment, the purification device 3 comprises a filter layer 31 and an electrolyte layer 32, the filter layer 31 is communicated with the electrolyte layer 32, a plurality of flow guide regions 311 and an accommodating chamber 312 are arranged in the filter layer 31, the plurality of flow guide regions 311 are connected in an S-shaped arrangement, a filter plate 4 for filtering impurities is arranged at the joint of any two adjacent flow guide regions 311, the flow guide regions 311 are connected with a water inlet 5, and the side wall of the accommodating chamber 312 is connected with a water outlet 6.
Water flow enters the filter layer 31 through the water inlet 5 and sequentially flows through the diversion area 311, when the water flow flows through the diversion area 311, the water flow can flow into the containing cavity 312 through the filter plate 4, large-particle impurities are difficult to pass through the filter plate 4 and are left above the filter plate 4, the side wall of the containing cavity 312 is provided with the water outlet 6, the water flow flows out through the water outlet 6 and flows into the electrolytic layer 32, oxygen is electrolyzed by the electrolytic layer 32, and the water flow enters the shrimp intensive culture pond 1.
As a modified specific embodiment, an electrolytic cell 33 is arranged in the electrolytic layer 32, a water inlet pipe 7 and a water outlet pipe 8 are arranged on the electrolytic cell 33, the water outlet 6 is connected with the water inlet pipe 7, and a check valve 9 is arranged between the water outlet 6 and the water inlet pipe 7.
Water flows into the water inlet pipeline 7 from the water outlet 6, the one-way valve 9 is arranged between the water outlet 6 and the water inlet pipeline 7, so that the water cannot flow back into the water outlet 6 after entering the water inlet pipeline 7, and water can flow back through the one-way valve 9.
As an improved specific implementation mode, the working voltage in the electrolytic cell 33 is 2V-18V, the current intensity is 1-5000A, and the strong oxide generated by electrolysis in the electrolytic cell 33 can kill plankton, microorganisms and viruses in raw water, and dissolve plankton in water under the action of an electric field, so that colloidal substances, charged particles, algae, killed bacteria and the like are prevented from forming larger particles.
The working voltage of the electrolytic cell 33 is 8-10V, the current intensity is 130-135A, and the substances generated by the nano-catalysis micro-electrolysis are chlorine, and the chlorine can kill microorganisms in water and oxidize and decompose organic substances in the water.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a south america white shrimp mariculture ecological cycle clean system which characterized in that: the circulating system comprises a water using system and a purifying system, the purifying system comprises a shrimp intensive culture pond (1), a primary sedimentation pond unit (12), a contact oxidation unit (13), a shellfish ecological pond unit (14) and a plug-flow type artificial wetland unit (15), a three-way valve (2) is arranged between the shrimp intensive culture pond (1) and the contact oxidation unit (13), one end of the three-way valve (2) is connected with the shrimp intensive culture pond (1), the other end is connected with the primary sedimentation tank unit (12), and the other end is used for discharging sludge, the effluent of the primary sedimentation tank unit (12) is connected with a contact oxidation unit (13), the contact oxidation unit (13) is connected with a shellfish ecological pond unit (14), the shellfish ecological pond unit (14) is connected with a plug-flow type artificial wetland unit (15), the plug-flow type artificial wetland unit (15) adopts a lifting pump to convey water back to the shrimp fine-culture pond (1) to form a closed loop.
2. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 1, wherein: after the seawater culture effluent enters a primary sedimentation tank unit (12), a large amount of suspended matters are precipitated and removed, and meanwhile, partial granular total nitrogen and total phosphorus are removed; the effluent of the primary sedimentation tank unit (12) enters a contact oxidation unit (13), and the contact oxidation unit (13) realizes ammoniation and nitration reactions through the action of microorganisms to convert ammonia nitrogen and nitrite nitrogen into nitrate nitrogen which is relatively harmless to mariculture; the effluent of the contact oxidation unit (13) enters a shellfish ecological pond unit (14) to condition the contact oxidation effluent, shellfish in the shellfish ecological pond unit (14) ingests suspended substances, floating island plants and phytoplankton absorb nitrogen and phosphorus pollutants, the effluent of the shellfish ecological pond unit (14) enters a plug-flow type artificial wetland unit (15), and a substrate filled in the plug-flow type artificial wetland unit (15) can absorb and enrich nitrogen and phosphorus pollutants in water.
3. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 2, wherein: the primary sedimentation tank unit (12) is composed of sedimentation inclined pipes (121).
4. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 3, wherein: be provided with holding tank (131) in contact oxidation unit (13), be provided with biological biofilm carrier (132) in holding tank (131), biological biofilm carrier (132) one end holding tank (131) lateral wall fixed connection, biological biofilm carrier (132) adopt the three-dimensional filler of elasticity, and this filler is fixed with the silk strip interlude of polyolefine and polyamide as the material on corrosion resistant, high strength's central rope, and the silk strip is three-dimensional align to grid and is the radiation state.
5. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 4, wherein: a positive side type ecological floating island is arranged in the shellfish ecological pond unit (14), floating island plants can be picked and planted in the floating island, and the ratio of the coverage area of the ecological floating island plants to the area of the shellfish ecological pond unit (14) is 1: 5-1: 10.
6. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 5, wherein: the thickness of the wetland filler layer in the plug flow type artificial wetland unit (15) is 0.1-0.9 m, the thickness of the surface soil layer is 0.05-0.15 m, the selected plants can adopt Kandelia candel and Tung flowers, and the planting density is 10 plants/m2About 50 strains/m2。
7. The seawater culture ecological cycle purification system for the south America white prawns according to claim 1, 2, 3, 4, 5 or 6, wherein the ecological cycle purification system comprises: purifier (3) include filter layer (31) and electrolytic layer (32), purifier (3) set up in shrimp intensive culture pond (1) water injection department, communicate with each other between filter layer (31) and electrolytic layer (32), be provided with a plurality of drainage district (311) and one in filter layer (31) and hold chamber (312), a plurality of drainage district (311) are connected and are "S" type setting, and the junction setting of arbitrary two adjacent drainage districts (311) is used for filtering filter (4) of impurity, drainage district (311) is connected with water inlet (5) and delivery port.
8. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 7, wherein: be provided with electrolysis trough (33) in electrolysis layer (32), be provided with a inlet channel (7) and a outlet conduit (8) on electrolysis trough (33), delivery port (6) are connected with inlet channel (7), be provided with check valve (9) between delivery port (6) and inlet channel (7).
9. The seawater culture ecological cycle purification system for the Penaeus vannamei Boone as claimed in claim 8, wherein: the working voltage in the electrolytic cell (33) is 2V-18V, the current intensity is 1-5000A, and the strong oxide generated by electrolysis of the electrolytic cell (33) can kill plankton, microorganism and virus in the raw water, and dissolve the plankton in the water under the action of an electric field, so that colloidal substances, charged particles, algae, killed bacteria and the like are prevented from forming larger particles.
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| CN201822085324.6U CN209882835U (en) | 2018-12-12 | 2018-12-12 | Ecological circulating purification system for seawater culture of Penaeus vannamei Boone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109380171A (en) * | 2018-12-12 | 2019-02-26 | 浙江省海洋水产养殖研究所 | A kind of Penaeus Vannmei sea-farming ecological circulation purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109380171A (en) * | 2018-12-12 | 2019-02-26 | 浙江省海洋水产养殖研究所 | A kind of Penaeus Vannmei sea-farming ecological circulation purification system |
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