CN114956467A - Method for treating freshwater shrimp culture wastewater - Google Patents
Method for treating freshwater shrimp culture wastewater Download PDFInfo
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- CN114956467A CN114956467A CN202210627212.7A CN202210627212A CN114956467A CN 114956467 A CN114956467 A CN 114956467A CN 202210627212 A CN202210627212 A CN 202210627212A CN 114956467 A CN114956467 A CN 114956467A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a method for treating freshwater shrimp aquaculture wastewater, which comprises the following steps: (1) pumping the freshwater shrimp culture wastewater into a wastewater tank, treating the wastewater in a sedimentation tank, and filtering; (2) the filtered wastewater enters a disinfection tank again, and a sodium hypochlorite generator in the disinfection tank is started; (3) enabling the wastewater after the disinfection treatment to enter a volatilization pool, and starting an aerator in the volatilization pool; treating with protein separator, and filtering; (4) the treated wastewater enters a biochemical tank, and nitrobacteria are inoculated into the biochemical tank; (5) and (3) feeding the biochemically treated wastewater into a culture pond, and inoculating the gracilaria subconfigus and the gulfweed into the culture pond. By adopting the method, germs and pathogens in the wastewater are killed, ammonia nitrogen and the like in the wastewater are fully decomposed, the water quality is improved through the gracilaria and the gulfweed, diseases such as black gill disease, vibriosis, white spot syndrome and the like are effectively reduced or avoided, the circulating utilization of the water for culturing the green lobsters is effectively realized, and the yield of the green lobsters is improved.
Description
Technical Field
The invention relates to the field of freshwater shrimp culture, in particular to a method for treating freshwater shrimp culture wastewater.
Background
The market demand for the freshwater shrimps is increasing day by day, and the breeding of the freshwater shrimps is gradually scaled. The large-scale cultivation of the freshwater shrimps easily causes the serious eutrophication of the cultivation water body and even the deterioration of the surrounding water ecological environment. The water recycling of the freshwater shrimp scale farm plays an important role in improving the utilization rate of water resources and improving the water ecological environment. However, the water circulation of the freshwater shrimp farm faces the problem of improving water quality, and the water quality problem causes diseases of the freshwater shrimps, including black gill disease, vibriosis, white spot syndrome and the like. Therefore, the method effectively treats the freshwater shrimp aquaculture wastewater, improves the water quality, prevents diseases and can effectively realize the purpose of circulating water.
Disclosure of Invention
In view of the above, the invention provides a method for treating freshwater shrimp aquaculture wastewater, which effectively treats freshwater shrimp aquaculture wastewater, improves water quality, prevents diseases of freshwater shrimps and effectively achieves the purpose of circulating water.
The technical scheme of the invention is realized as follows:
a method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater tank, treating the wastewater in a sedimentation tank, and filtering to remove physical residues;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator in the disinfection tank is started to carry out thorough disinfection, and germs and pathogens are killed;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator in the volatilization pool is started to volatilize and remove gas and the like generated in the disinfection process; then the waste water is treated by a protein separator, filtered and stripped of partial organic matters in the waste water;
(4) the treated wastewater enters a biochemical tank, nitrifying bacteria are inoculated into the biochemical tank, and organic matters such as ammonia nitrogen and the like in the wastewater are decomposed;
(5) and (3) feeding the wastewater after biochemical treatment into a freshwater shrimp culture pond, inoculating Gracilaria (Gracilaria salicifolia) and gulfweed (Scagassum) into the culture pond, decomposing organic matters such as ammonia nitrogen and the like newly generated in the culture process, and adsorbing heavy metals in water.
The further processing scheme is that gulfweed is inoculated in the culture pond, and the gracilaria subconfiguata is inoculated after 3-4 days, wherein the initial inoculation mass ratio of the gracilaria subconfiguata to the gulfweed is 1: 0.8 to 1.2, and controlling the coverage area of the gracilaria subconfigus and the gulfweed in the culture pond to be 40 to 50 percent, better exerting the cooperation effect of the gracilaria subconfigus and the gulfweed, being beneficial to improving the water quality, being beneficial to the growth of the freshwater shrimps and avoiding excessive adverse effects.
The further processing proposal is that vermiculite with the grain size of 2-4mm is put into the biochemical pond, and the density of the vermiculite is 80-90kg/m 3 The input amount of vermiculite is 1.3-1.8% of the mass of the wastewater, which is not only beneficial to the propagation of nitrobacteria, but also improves the treatment effect of the biochemical pool.
The further treatment proposal is that the adding amount of the nitrobacteria is 0.2-0.3 percent of the mass of the wastewater.
The further treatment scheme is that the settling time of the wastewater in the settling tank is 10-12 h.
The further treatment proposal is that the disinfection time of the wastewater in the disinfection tank is 6-8 h.
The further treatment scheme is that the retention time of the wastewater in the biochemical pond is 18-24 h.
Compared with the prior art, the invention has the beneficial effects that:
the method is adopted to treat the crayfish breeding wastewater, remove physical residues in the wastewater, kill germs and pathogens in the wastewater, fully decompose organic matters such as ammonia nitrogen and the like in the wastewater, improve the water quality through the gracilaria and the gulfweed in the breeding pond, effectively reduce or avoid diseases such as black gill disease, vibriosis, white spot syndrome and the like of the crayfish, effectively realize the cyclic utilization of the crayfish breeding water, improve the utilization rate of water resources, contribute to improving the aquatic ecological environment and contribute to improving the yield of the crayfish.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1
A method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater pond, treating the wastewater in a sedimentation tank for 12 hours, and filtering;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator is arranged in the disinfection tank, and the sodium hypochlorite generator is started to disinfect for 6 hours;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator is arranged in the volatilization pool, and the aerator is started to perform volatilization treatment; treating with protein separator, and filtering;
(4) enabling the wastewater treated in the step (3) to enter a biochemical pond, inoculating nitrobacteria in the biochemical pond, enabling the adding amount of the nitrobacteria to be about 0.2% of the mass of the wastewater, staying in the biochemical pond for 24 hours, and obtaining culture water after treatment;
(5) and (3) allowing the culture water treated in the step (4) to enter a freshwater shrimp culture pond, inoculating gulfweed in the culture pond, and then inoculating the gracilaria subconfigus after 3 days, wherein the initial inoculation mass ratio of the gracilaria subconfigus to the gulfweed is 1: 1, controlling the coverage area of the gracilaria verrucosa and the gulfweed in the culture pond to be 40-50%.
Example 2
A method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater pond, treating the wastewater in a sedimentation tank for 10 hours, and filtering;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator is arranged in the disinfection tank, and the sodium hypochlorite generator is started to disinfect for 8 hours;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator is arranged in the volatilization pool, and the aerator is started to perform volatilization treatment; treating with protein separator, and filtering;
(4) enabling the wastewater treated in the step (3) to enter a biochemical pond, inoculating nitrobacteria in the biochemical pond, enabling the adding amount of the nitrobacteria to be about 0.3% of the mass of the wastewater, staying the wastewater in the biochemical pond for 18h, and obtaining culture water after treatment;
(5) and (3) allowing the culture water treated in the step (4) to enter a culture pond, inoculating the gulfweed in the culture pond, and then inoculating the gracilaria subconfiguata after 4 days, wherein the initial inoculation mass ratio of the gracilaria subconfiguata to the gulfweed is 1: 1, controlling the coverage area of the gracilaria verrucosa and the gulfweed in the culture pond to be 40-50%.
Example 3
A method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater pond, treating the wastewater in a sedimentation tank for 12 hours, and filtering;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator is arranged in the disinfection tank, and the sodium hypochlorite generator is started to disinfect for 6 hours;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator is arranged in the volatilization pool, and the aerator is started to perform volatilization treatment; treating with protein separator, and filtering;
(4) the wastewater treated in the step (3) enters a biochemical pool, vermiculite with the particle size of 2-4mm is put into the biochemical pool, and the density of the vermiculite is 80-90kg/m 3 The input amount of vermiculite is 1.5 percent of the mass of the wastewater; inoculating nitrobacteria into the biochemical pond, wherein the adding amount of the nitrobacteria is about 0.2 percent of the mass of the wastewater, staying for 24 hours in the biochemical pond, and obtaining culture water after treatment;
(5) and (3) allowing the culture water treated in the step (4) to enter a freshwater shrimp culture pond, inoculating gulfweed in the culture pond, and then inoculating the gracilaria subconfigus after 3 days, wherein the initial inoculation mass ratio of the gracilaria subconfigus to the gulfweed is 1: 1, controlling the coverage area of the gracilaria verrucosa and the gulfweed in the culture pond to be 40-50%.
Test examples
1. The test method comprises the following steps:
3 months 2021, tested according to the method of examples 1-3, test groups 1-3, test culturesThe pond is positioned in Haikou city of Hainan province, and the area of each group of the macrobrachium nipponensis culture pond is 100m 2 The culture density is about 30 tails/m 2 Putting the freshwater shrimps with the specification of 4-5cm, culturing for 100 days according to a conventional culture method, and counting disease incidence rates of the freshwater shrimps, including black gill disease, vibriosis and white spot syndrome.
Control group: filtering and sterilizing seawater, pumping into freshwater shrimp culture pond with area of 100m 2 The culture density is about 30 tails/m 2 The freshwater shrimps with the specification of 4-5cm are thrown in the culture pond, the freshwater shrimps are cultured according to a conventional culture method, and the freshwater shrimps are used as a control group, and the culture conditions of the test group 1-3 are compared with the control group.
2, test results: no white spot syndrome and vibriosis disease appear in the test groups 1-3, and no black gill disease appears in the test group 3. The results are shown in Table 1.
TABLE 1 incidence of freshwater shrimp disease
| White spot syndrome | Vibriosis disease | Black cheek disease | |
| Example 1 | Is free of | Is free of | 0.5％ |
| Example 2 | Is free of | Is free of | 0.8％ |
| Example 3 | Is free of | Is free of | Is composed of |
| Control group | 1.2％ | 1.8％ | 2.3％ |
Comparative example 1
A method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater pond, treating the wastewater in a sedimentation tank for 12 hours, and filtering;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator is arranged in the disinfection tank, and the sodium hypochlorite generator is started to disinfect for 6 hours;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator is arranged in the volatilization pool, and the aerator is started to perform volatilization treatment; treating with protein separator, and filtering;
(4) enabling the wastewater treated in the step (3) to enter a biochemical pond, inoculating nitrobacteria in the biochemical pond, enabling the adding amount of the nitrobacteria to be about 0.2% of the mass of the wastewater, staying in the biochemical pond for 24 hours, and obtaining culture water after treatment;
(5) and (5) enabling the culture water treated in the step (4) to enter a freshwater shrimp culture pond, inoculating gulfweed in the culture pond, and controlling the coverage area of the gulfweed in the culture pond to be 40-50%. The area of the freshwater shrimp culture pond is 100m 2 The culture density is about 30 tails/m 2 And putting the freshwater shrimps with the specification of 4-5cm, and culturing for 100 days according to a conventional culture method. Statistics show that the incidence rate of black cheek disease of the crayfish during the culture period is 1.7%, the incidence rate of white spot syndrome is 0.5%, and the incidence rate of vibriosis is 0.9%.
Comparative example 2
A method for treating freshwater shrimp aquaculture wastewater comprises the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater pond, treating the wastewater in a sedimentation tank for 12 hours, and filtering;
(2) the filtered wastewater enters a disinfection tank, a sodium hypochlorite generator is arranged in the disinfection tank, and the sodium hypochlorite generator is started to disinfect for 6 hours;
(3) the wastewater after the disinfection treatment enters a volatilization pool, an aerator is arranged in the volatilization pool, and the aerator is started to perform volatilization treatment; treating with protein separator, and filtering;
(4) enabling the wastewater treated in the step (3) to enter a biochemical pond, inoculating nitrobacteria in the biochemical pond, enabling the adding amount of the nitrobacteria to be about 0.2% of the mass of the wastewater, staying in the biochemical pond for 24 hours, and obtaining culture water after treatment;
(5) and (4) feeding the culture water treated in the step (4) into a freshwater shrimp culture pond, inoculating the gracilaria subcontract into the culture pond, and controlling the coverage area of the gracilaria subcontract in the culture pond to be 40-50%. The area of the freshwater shrimp culture pond is 100m 2 The culture density is about 30 tails/m 2 And putting the freshwater shrimps with the specification of 4-5cm, and culturing for 100 days according to a conventional culture method. Statistics show that the incidence rate of black cheek disease of the crayfish during the culture period is 1.3 percent, the incidence rate of white spot syndrome is 0.3 percent, and the incidence rate of vibriosis is 0.6 percent.
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, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A method for treating freshwater shrimp aquaculture wastewater is characterized by comprising the following steps:
(1) pumping the freshwater shrimp culture wastewater into a wastewater tank, treating the wastewater in a sedimentation tank, and filtering;
(2) the filtered wastewater enters a disinfection tank again, and a sodium hypochlorite generator in the disinfection tank is started;
(3) enabling the wastewater after the disinfection treatment to enter a volatilization pool, and starting an aerator in the volatilization pool; treating with protein separator, and filtering;
(4) the treated wastewater enters a biochemical tank, and nitrobacteria are inoculated into the biochemical tank;
(5) and (3) feeding the biochemically treated wastewater into a culture pond, and inoculating the gracilaria subconfigus and the gulfweed into the culture pond.
2. The method for treating freshwater shrimp aquaculture wastewater as recited in claim 1, wherein the coverage area of the gracilaria subcontract and the gulfweed in the aquaculture pond is controlled to be 40-50%.
3. The method for treating the freshwater shrimp aquaculture wastewater as claimed in claim 1, wherein the gulfweed is inoculated in the aquaculture pond, and the gracilaria subconfigus is inoculated after 3-4 days.
4. The method for treating freshwater shrimp aquaculture wastewater as claimed in claim 1, wherein the initial inoculation mass ratio of the gracilaria salicornia to the gulfweed is 1: 0.8-1.2.
5. The method for treating freshwater shrimp aquaculture wastewater as claimed in any one of claims 1 to 4, wherein the biochemical pond is filled with vermiculite with a size fraction of 2-4mm and a density of 80-90kg/m 3 The input amount of vermiculite is 1.3-1.8% of the mass of the waste water.
6. The method for treating the freshwater shrimp aquaculture wastewater as claimed in claim 1, wherein the adding amount of the nitrifying bacteria is 0.2-0.3% of the mass of the wastewater.
7. The method for treating the freshwater shrimp aquaculture wastewater as recited in claim 1, wherein the settling time of the wastewater in the settling tank is 10-12 h.
8. The method for treating the freshwater shrimp aquaculture wastewater as recited in claim 1, wherein the disinfection time of the wastewater in the disinfection tank is 6-8 h.
9. The method for treating the freshwater shrimp aquaculture wastewater as recited in claim 1, wherein the retention time of the wastewater in the biochemical pond is 18-24 h.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204874195U (en) * | 2015-07-15 | 2015-12-16 | 天津市保农利生物技术有限公司 | Processing system of multi -functional mariculture waste water |
| CN106698820A (en) * | 2016-12-15 | 2017-05-24 | 雷州市海威水产养殖有限公司 | Water circulating treatment method for indoor prawn culture tank |
| CN208242614U (en) * | 2018-05-31 | 2018-12-18 | 杜丰 | Cultivation water recycles the circulatory system |
| CN111847793A (en) * | 2020-07-29 | 2020-10-30 | 北京天诚众合科技发展有限公司 | Tail water treatment integrated system, aquaculture tail water treatment integrated system and method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204874195U (en) * | 2015-07-15 | 2015-12-16 | 天津市保农利生物技术有限公司 | Processing system of multi -functional mariculture waste water |
| CN106698820A (en) * | 2016-12-15 | 2017-05-24 | 雷州市海威水产养殖有限公司 | Water circulating treatment method for indoor prawn culture tank |
| CN208242614U (en) * | 2018-05-31 | 2018-12-18 | 杜丰 | Cultivation water recycles the circulatory system |
| CN111847793A (en) * | 2020-07-29 | 2020-10-30 | 北京天诚众合科技发展有限公司 | Tail water treatment integrated system, aquaculture tail water treatment integrated system and method thereof |
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