Aquaculture wastewater treatment method
By setting up ecological floating beds and separation purification facilities in aquaculture ponds, combining specific bacterial agents and biological reactions, the problem of low efficiency in aquaculture wastewater treatment is solved, efficient removal of nitrogen, phosphorus and nitrites is achieved, water quality is improved, and water quality is promoted. Restoration of water ecosystems.
Patent Information
- Application Number
- CN202411465104.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-27
AI Technical Summary
The existing aquaculture wastewater treatment efficiency is low, and the nitrogen and phosphorus removal rate and nitrite removal efficiency are poor, which limits the wastewater treatment efficiency, leads to eutrophication and water quality pollution, and affects the healthy development of the aquaculture industry.
Aquaculture wastewater treatment method is adopted, including setting up ecological floating beds in the pond to plant aquatic plants, using specific bacterial agents and filter feeding fish for biological purification, setting up sedimentation tanks, filter tanks and ecological purification tanks for separation of pond areas, and using plant roots Adsorption and bioreaction degrade nutrients in water, and rotate them in combination with bacterial agents to improve purification effect.
It significantly improves the nitrogen and phosphorus removal rate and nitrite removal rate, improves the water environment, achieves the standard emissions of water quality, supports the restoration of the water ecosystem and the healthy development of the aquaculture industry.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of aquaculture, and in particular to a method for treating aquaculture wastewater. Background Art
[0002] At present, most coastal areas in my country are eutrophic. The large-scale discharge of aquaculture wastewater has led to a further increase in the N and P content in some sea areas, becoming one of the main causes of red tide outbreaks. Water pollution, in turn, restricts the development of aquaculture. How to increase production in aquaculture without increasing pollution is an urgent problem that needs to be solved, and it is also the direction for the long-term healthy development of aquaculture.
[0003] The existing aquaculture wastewater treatment efficiency is low, the nitrogen and phosphorus removal rate in the wastewater is low, and the nitrite removal efficiency is poor, which limits the wastewater treatment efficiency. Summary of the invention
[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a method for treating aquaculture wastewater to solve the problems raised in the above background technology.
[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a method for treating aquaculture wastewater, comprising the following steps: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 1.5-2% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) Depending on the salinity of the water, filter-feeding fish such as silver carp, bighead carp, and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
[0006] Preferably, the ecological purification pond is recommended to be planted with emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in the water body. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Plant appropriate aquatic plants in the ecological purification pool, use their roots to absorb nutrients in the water to achieve the purification effect, and add 2-3 kg of RJ-A1 bacterial agent every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
[0007] Preferably, the RJ-A1 bacterial agent is a combination of one or more of photosynthetic bacteria, lactic acid bacteria, yeast, methanogens, sulfur bacteria, nitrifying bacteria, high-efficiency flocculants, and actinomycetes.
[0008] Preferably, the RJ-A2 is a combination of one or more of anaerobic bacteria, nitrifying bacteria, denitrifying bacteria, ammonifying bacteria, Bacillus, yeast, and Acinetobacter calcoaceticus.
[0009] Preferably, RJ-B2 is a combination of one or more of ammonia-denitrifying bacteria, Thiobacillus denitrifying, and Rhodopseudomonas palustris.
[0010] Preferably, the Ruijie probiotics are prepared by mixing soybean meal, a regulator and yeast in a weight ratio of 10:3:1, fermenting at 38-42°C for 1 hour, and then obtaining the Ruijie probiotics.
[0011] Preferably, the preparation method of the regulator is: The rectorite is heat treated at 210-230°C for 5-10 min, then cooled to 55-60°C at a rate of 1-3°C / min, kept at this temperature for 2-5 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
[0012] Preferably, the mass fraction of the sodium citrate solution is 2-5%.
[0013] Preferably, the speed for sufficient mixing is 1000-1500 r / min, and the stirring time is 1 hour.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention combines biological floating bed purification by utilizing aquatic plants or modified terrestrial plants, with floating beds as carriers, planted on the surface of ponds, and reducing organic substances such as nitrogen and phosphorus in water bodies through the absorption and adsorption of plant roots and the mechanism of species competition and antagonism, providing conditions for the survival and reproduction of various organisms, rebuilding and restoring the water ecosystem, thereby improving the water environment and meeting emission standards. DETAILED DESCRIPTION
[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] A method for treating aquaculture wastewater in this embodiment comprises the following steps: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 1.5-2% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) Depending on the salinity of the water, filter-feeding fish such as silver carp, bighead carp, and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
[0017] The ecological purification pool of this embodiment is recommended to plant emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in the water body. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Plant appropriate aquatic plants in the ecological purification pool, use their roots to absorb nutrients in the water to achieve the purification effect, and add 2-3 kg of RJ-A1 bacterial agent every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
[0018] Preferably, the RJ-A1 bacterial agent is a combination of one or more of photosynthetic bacteria, lactic acid bacteria, yeast, methanogens, sulfur bacteria, nitrifying bacteria, high-efficiency flocculants, and actinomycetes.
[0019] RJ-A2 of this embodiment is a combination of one or more of anaerobic bacteria, nitrifying bacteria, denitrifying bacteria, ammonifying bacteria, Bacillus, yeast, and Acinetobacter calcoaceticus.
[0020] The RJ-B2 of this embodiment is a combination of one or more of ammonifying bacteria, denitrifying Thiobacillus, and Rhodopseudomonas palustris.
[0021] The Ruijie probiotics of this embodiment are prepared by mixing soybean meal, a regulator, and yeast in a weight ratio of 10:3:1, fermenting at 38-42° C. for 1 hour, and then obtaining the Ruijie probiotics after the fermentation is completed.
[0022] The preparation method of the regulator of this embodiment is: The rectorite is heat treated at 210-230°C for 5-10 min, then cooled to 55-60°C at a rate of 1-3°C / min, kept at this temperature for 2-5 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
[0023] The mass fraction of the sodium citrate solution of the present embodiment is 2-5%.
[0024] The rotation speed for sufficient mixing in this embodiment is 1000-1500 r / min, and the stirring is for 1 hour.
[0025] Example 1. A method for treating aquaculture wastewater in this embodiment comprises the following steps: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 1.5% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) Depending on the salinity of the water, filter-feeding fish such as silver carp, bighead carp, and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
[0026] The ecological purification pool of this embodiment is recommended to plant emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in the water body. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Appropriate aquatic plants are planted in the ecological purification pool, and their roots are used to absorb nutrients in the water to achieve the purification effect. 2 kg of RJ-A1 bacterial agent is added every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
[0027] Preferably, the RJ-A1 bacterial agent is a photosynthetic bacterium.
[0028] RJ-A2 in this example is an anaerobic bacterium.
[0029] The RJ-B2 of this example is an ammonia-forming bacterium.
[0030] The Ruijie probiotics of this embodiment are prepared by mixing soybean meal, a regulator, and yeast in a weight ratio of 10:3:1, fermenting at 38° C. for 1 hour, and obtaining the Ruijie probiotics after the fermentation is completed.
[0031] The preparation method of the regulator of this embodiment is: The rectorite was heat treated at 210 °C for 5 min, then cooled to 55 °C at a rate of 1 °C / min, kept at that temperature for 2 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
[0032] The mass fraction of the sodium citrate solution in this embodiment is 2%.
[0033] The stirring speed for sufficient mixing in this embodiment is 1000 r / min and the stirring is for 1 hour.
[0034] Example 2. A method for treating aquaculture wastewater in this embodiment comprises the following steps: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 2% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) Depending on the salinity of the water, filter-feeding fish such as silver carp, bighead carp, and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
[0035] The ecological purification pool of this embodiment is recommended to plant emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in the water body. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Appropriate aquatic plants are planted in the ecological purification pool, and their roots are used to absorb nutrients in the water to achieve the purification effect. 3 kg of RJ-A1 bacterial agent is added every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
[0036] Preferably, the RJ-A1 bacterial agent is lactic acid bacteria.
[0037] RJ-A2 in this example is a nitrifying bacterium.
[0038] RJ-B2 of this example is Thiobacillus denitrificans.
[0039] The Ruijie probiotics of this embodiment are prepared by mixing soybean meal, a regulator, and yeast in a weight ratio of 10:3:1, fermenting at 42° C. for 1 hour, and obtaining the Ruijie probiotics after the fermentation is completed.
[0040] The preparation method of the regulator of this embodiment is: The rectorite was heat treated at 230°C for 10 min, then cooled to 60°C at a rate of 3°C / min, kept at that temperature for 5 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
[0041] The mass fraction of the sodium citrate solution in this embodiment is 5%.
[0042] The stirring speed for sufficient mixing in this embodiment is 1500 r / min and the stirring is for 1 hour.
[0043] Example 3. A method for treating aquaculture wastewater in this embodiment comprises the following steps: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 1.7% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) Depending on the salinity of the water, filter-feeding fish such as silver carp, bighead carp, and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
[0044] The ecological purification pool of this embodiment is recommended to plant emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in the water body. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Appropriate aquatic plants are planted in the ecological purification pool, and their roots are used to absorb nutrients in the water to achieve the purification effect. 2.5 kg of RJ-A1 bacterial agent is added every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
[0045] Preferably, the RJ-A1 bacterial agent is a methanogen.
[0046] RJ-A2 in this example is a denitrifying bacterium.
[0047] The RJ-B2 of this example is Rhodopseudomonas palustris.
[0048] The Ruijie probiotics of this embodiment are prepared by mixing soybean meal, a regulator, and yeast in a weight ratio of 10:3:1, fermenting at 40° C. for 1 hour, and obtaining the Ruijie probiotics after the fermentation is completed.
[0049] The preparation method of the regulator of this embodiment is: The rectorite was heat treated at 220°C for 7.5 min, then cooled to 57°C at a rate of 2°C / min, kept at that temperature for 3.5 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
[0050] The mass fraction of the sodium citrate solution in this embodiment is 3.5%.
[0051] The stirring speed for sufficient mixing in this embodiment is 1200 r / min and the stirring is for 1 hour.
[0052] Comparative Example 1. The difference from Example 3 is that Ruijie probiotics treatment was not used.
[0053] Comparative Example 2. The difference from Example 3 is that no regulator is added to Ruijie probiotics.
[0054] Comparative Example 3. The difference from Example 3 is that the conditioning agent is not subjected to heat treatment at 210-230°C for 5-10 min, then cooled to 55-60°C at a rate of 1-3°C / min, kept at that temperature for 2-5 min, and finally air-cooled to room temperature.
[0055] Comparative Example 4. The difference from Example 3 is that the regulator is replaced by rectorite.
[0056] The products of Examples 1-3 and Comparative Examples 1-4 were subjected to performance tests;
[0057] It can be seen from Comparative Examples 1-4 and Examples 1-3 that; The product of Example 3 of the present invention has excellent nitrogen and phosphorus removal rates and nitrite removal rates, and the performance of the two is improved in a coordinated manner. The product performance has a tendency to deteriorate when Ruijie probiotics is not used for treatment, no regulator is added to Ruijie probiotics, and the preparation method of the regulator is different. Using other methods instead cannot achieve the effect of the present invention.
[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.
[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A method for treating aquaculture wastewater, characterized in that: The following steps are involved: (1) Before raising crabs, clean the pond according to the usual breeding practices, add water 7 days later, use 3 kg / mu of RJ-A1 microbial agent to improve the bottom, and then add 1 kg / mu of Ruijie probiotics to fertilize the water; (2) One month after the crab seedlings are released, one or more ecological floating beds are set up in the center of the pond, with an area of 1.5-2% of the pond area, and local aquatic plants or water spinach, houttuynia cordata, etc. are planted; (3) According to the salinity of the water, filter-feeding fish such as silver carp, bighead carp and grey mullet can be cultured, and oysters can be cultured according to local conditions; (4) For daily water maintenance, use RJ-A2 and RJ-B2 bacteria agents in rotation, with a dosage of 2 kg per mu, once every 10 days. In special cases, the dosage and frequency can be appropriately increased depending on the water quality; (5) Use canvas and other waterproof materials to separate a part of the pond as an aquaculture effluent treatment area. The total area of the treatment facilities during the stable period, including sedimentation tanks, filtration tanks and ecological purification tanks, shall not be less than 2% of the aquaculture area, of which the area of the ecological purification tank shall not be less than 50% of the treatment facility area. It is recommended that the ecological purification tank be planted mainly with emergent plants.
2. A method for treating aquaculture wastewater according to claim 1, characterized in that: The ecological purification pool is recommended to plant emergent plants as follows: Sedimentation tank: Sedimentation tank is used for the sedimentation and reduction of suspended matter and particulate matter in water. Brushes are hung in the sedimentation tank to absorb suspended matter and particulate matter and promote sedimentation. Particulate matter pollutants that settle at the bottom are degraded into small molecules through anaerobic reactions; The area of the sedimentation tank shall not be less than 20% of the total area of the treatment facilities; Filtration facilities: Choose a 60 to 100 mesh fishing net perpendicular to the incoming water direction, and place multiple nets about 1 meter apart; The area of filtration facilities shall not be less than 10% of the total area of treatment facilities; Ecological purification pool: Appropriate aquatic plants are planted in the ecological purification pool, and their roots are used to absorb nutrients in the water to achieve the purification effect. 2 to 3 kg of RJ-A1 bacterial agent is added every 15 days; The total area of ecological purification pools shall not be less than 50% of the total area of treatment facilities.
3. The method for treating aquaculture wastewater according to claim 1, characterized in that: The RJ-A1 bacterial agent is a combination of one or more of photosynthetic bacteria, lactic acid bacteria, yeast, methanogens, sulfur bacteria, nitrifying bacteria, high-efficiency flocculants, and actinomycetes.
4. The method for treating aquaculture wastewater according to claim 1, characterized in that: The RJ-A2 is a combination of one or more of anaerobic bacteria, nitrifying bacteria, denitrifying bacteria, ammonifying bacteria, Bacillus, yeast, and Acinetobacter calcoaceticus.
5. The method for treating aquaculture wastewater according to claim 1, characterized in that: RJ-B2 is a combination of one or more of ammonifying bacteria, denitrifying Thiobacillus, and Rhodopseudomonas palustris.
6. The method for treating aquaculture wastewater according to claim 1, characterized in that: Ruijie probiotics are prepared by mixing soybean meal, regulator and yeast in a weight ratio of 10:3:1, fermenting at 38-42°C for 1 hour, and obtaining Ruijie probiotics after the fermentation is completed.
7. A method for treating aquaculture wastewater according to claim 6, characterized in that: The preparation method of the regulator is: The rectorite is heat treated at 210-230°C for 5-10 min, then cooled to 55-60°C at a rate of 1-3°C / min, kept at this temperature for 2-5 min, and finally air-cooled to room temperature; The rectorite cooled to room temperature is immersed in a sufficient amount of sodium citrate solution and mixed thoroughly, then washed with water and dried to obtain a regulator.
8. A method for treating aquaculture wastewater according to claim 7, characterized in that: The mass fraction of the sodium citrate solution is 2-5%.
9. The method for treating aquaculture wastewater according to claim 7, characterized in that: The rotation speed for sufficient mixing is 1000-1500 r / min, and stirring is for 1 hour.