CN106830344B - Biological water purification system - Google Patents
Biological water purification system Download PDFInfo
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- CN106830344B CN106830344B CN201710137692.8A CN201710137692A CN106830344B CN 106830344 B CN106830344 B CN 106830344B CN 201710137692 A CN201710137692 A CN 201710137692A CN 106830344 B CN106830344 B CN 106830344B
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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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- 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
- C02F3/347—Use of yeasts or fungi
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/14—Fungi; Culture media therefor
- C12N1/16—Yeasts; Culture media therefor
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention discloses a biological water purification system, which is characterized in that a communicated water purification tank is arranged beside an eutrophic lake, floating aquatic plants are planted on the water surface of the water purification tank, the roots of the floating aquatic plants are contained in a water purification ball, the water purification ball is a plastic shell suspended at the bottom of the floating aquatic plants, through holes are arranged on the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core. The invention combines the aquatic plant pollution control and microorganism water purification methods, and the water purification ball is arranged at the root of the floating aquatic plant, so that the symbiotic relationship of the aquatic plant and the microorganism is skillfully utilized, and the eutrophic water body can be more effectively treated.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a biological water purification system.
Background
With the rapid development of economy and the acceleration of urbanization in China, the discharge amount of industrial wastewater and domestic sewage is increased day by day, and the industrial wastewater and the domestic sewage containing a large amount of nutrient substances such as nitrogen, phosphorus and the like are discharged into nearby lakes, so that the load of the nutrient substances in the lake water is increased. Meanwhile, as the use amount of chemical fertilizers and pesticides is increased year by year in agricultural production, a large amount of nutrient substances which are not absorbed by crops are washed and permeated by rainwater and finally lost and conveyed into a water body, so that the nutrient load of the lake water body in China is increased and accumulated rapidly, an ecological system is degraded continuously, and the lake eutrophication shows a rapid development trend.
Disclosure of Invention
The invention aims to solve the technical problem of providing a biological water purification system with excellent treatment effect on lake eutrophic water.
In order to solve the technical problems, the invention adopts the following technical scheme:
a biological water purification system is characterized in that a water purification tank is arranged beside an eutrophic lake and is communicated with the lake through an inlet channel and an outlet channel, water in the lake flows into the water purification tank through the inlet channel, the water in the water purification tank flows back into the lake through the outlet channel, floating aquatic plants are planted on the water surface of the water purification tank, the roots of the floating aquatic plants are contained in a water purification ball, the water purification ball is a plastic shell hung at the bottom of the floating aquatic plants, through holes are formed in the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core; the anaerobic bacterium core comprises 1-5 parts of bacillus subtilis, 3-8 parts of clostridium butyricum and 5-10 parts of microzyme in parts by weight, the aerobic bacterium layer comprises 1-5 parts of nitrobacteria, 5-10 parts of bacillus subtilis, 10-15 parts of bacillus licheniformis and 1-5 parts of photosynthetic bacteria, and the water permeable layer comprises 5-15 parts of diatomite, 1-3 parts of kaolin, 5-10 parts of coal ash, 5-10 parts of nitrocellulose, 8-18 parts of diethylene glycol butyl ether acetate and 10-20 parts of diethylene glycol butyl ether.
As a further improvement of the above technical solution:
the preparation process of the microbial filler comprises the following steps:
1) preparing sodium alginate aqueous solution with the mass concentration of 2% by using bacillus subtilis, clostridium butyricum and saccharomycetes, then dripping the sodium alginate aqueous solution into calcium chloride solution with the mass concentration of 3% to form small balls with the diameter of 5-10 mm, solidifying the small balls for 30-50 minutes, carrying out suction filtration, and airing the small balls to obtain anaerobic bacteria kernels;
2) adding nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria into water of which the total weight is 2-3 times of that of the nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria to prepare mixed bacterial liquid, then adding 50-80% of polyether, 1-5% of dichloromethane, 0.3-0.5% of silicone oil, 1-3% of zinc chloride and 10-15% of mixed bacterial liquid into dimethylformamide at the temperature of 20-25 ℃, then dispersing anaerobic bacteria kernels into the dimethylformamide, uniformly stirring, then adding 30-50% of toluene diisocyanate and 5-8% of polyisocyanate by weight of the dimethylformamide, uniformly mixing, foaming and forming, and condensing and wrapping the anaerobic bacteria kernels into aerobic bacterial layers with the thickness of 10-15 mm;
3) uniformly mixing diatomite, kaolin, coal ash, nitrocellulose, diethylene glycol butyl ether acetate and diethylene glycol butyl ether, heating to 26-28 ℃, rapidly dispersing anaerobic bacteria kernels coated with aerobic bacteria layers in the mixture, stirring, cooling, and then cutting, wherein a water permeable layer with the thickness of 20-25 mm can be coated outside the aerobic bacteria layers.
Preferably, the depth of the clean water reservoir is 2-3 m, the volume of the clean water reservoir is 200-300 m3, and the closest distance between the clean water reservoir and the lake is not less than 20 m.
Preferably, the flow velocity of water in the water inlet channel and the water outlet channel is 0.5-5 m3/min, a grating is arranged at a lake water inlet of the water inlet channel, the gap of the grating is 10-100 mm, a lifting device is arranged at a water outlet of the water outlet channel, and water flows back to the lake in a spraying and scattering mode after being lifted by the lifting device for 1-3 m.
Preferably, the inner diameter of the plastic shell is 10-20 cm, the diameter of the through holes is 0.2-0.4 cm, and the distance between the through holes and the surface of the plastic shell is 2-5 cm.
Preferably, the floating aquatic plants account for 20% -40% of the water surface area of the water purification tank, and the floating aquatic plants with the area of 20% -30% are updated every 1-2 months.
Preferably, the floating aquatic plant is lotus, Japanese pagodatree fruit, duckweed or duckweed.
Preferably, the anaerobic inner core comprises 3 parts of bacillus subtilis, 5 parts of clostridium butyricum and 8 parts of yeast in parts by weight, the aerobic bacterial layer comprises 2.5 parts of nitrobacteria, 9 parts of bacillus subtilis, 12 parts of bacillus licheniformis and 2 parts of photosynthetic bacteria, and the water permeable layer comprises 10 parts of diatomite, 2 parts of kaolin, 6 parts of coal ash, 10 parts of nitrocellulose, 15 parts of diethylene glycol butyl ether acetate and 20 parts of diethylene glycol butyl ether.
The invention has the beneficial effects that: the invention combines the aquatic plant pollution control and microorganism water purification methods, and the water purification ball is arranged at the root of the floating aquatic plant, so that the symbiotic relationship of the plants and the microorganisms is skillfully utilized, and the eutrophic water body can be more effectively treated. Different microbial communities are filled in the water purifying ball, so that environments beneficial to growth of aerobic microorganisms and anaerobic microorganisms are provided for the aerobic microorganisms and the anaerobic microorganisms respectively, growth of the aerobic microorganisms and the anaerobic microorganisms is promoted, a stable biological film is formed, and the water purifying effect is greatly improved by virtue of separated work and cooperation layer by layer.
Detailed Description
The following examples are further described, but the present invention is not limited to these examples.
Example 1
A biological water purification system is characterized in that a water purification tank is arranged beside an eutrophic lake and is communicated with the lake through an inlet channel and an outlet channel, water in the lake flows into the water purification tank through the inlet channel, the water in the water purification tank flows back into the lake through the outlet channel, floating aquatic plants are planted on the water surface of the water purification tank, the roots of the floating aquatic plants are contained in a water purification ball, the water purification ball is a plastic shell hung at the bottom of the floating aquatic plants, through holes are formed in the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core; the anaerobic bacteria inner core comprises 3 parts of bacillus subtilis, 5 parts of clostridium butyricum and 8 parts of yeast by weight, the aerobic bacteria layer comprises 2.5 parts of nitrobacteria, 9 parts of bacillus subtilis, 12 parts of bacillus licheniformis and 2 parts of photosynthetic bacteria, and the water permeable layer comprises 10 parts of diatomite, 2 parts of kaolin, 6 parts of coal ash, 10 parts of nitrocellulose, 15 parts of diethylene glycol butyl ether acetate and 20 parts of diethylene glycol butyl ether.
The preparation process of the microbial filler comprises the following steps: 1) preparing sodium alginate aqueous solution with the mass concentration of 2% by using bacillus subtilis, clostridium butyricum and saccharomycetes, then dripping the sodium alginate aqueous solution into calcium chloride solution with the mass concentration of 3% to form small balls with the diameter of 5-10 mm, solidifying for 30 minutes, carrying out suction filtration, and airing to obtain anaerobic bacterium kernels; 2) adding nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria into water of which the total weight is 2.5 times of that of the nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria to prepare mixed bacterial liquid, then adding 50 weight percent of polyether, 3 weight percent of dichloromethane, 0.5 weight percent of silicone oil, 1 weight percent of zinc chloride and 13 weight percent of the mixed bacterial liquid into dimethylformamide at 25 ℃, then dispersing anaerobic bacteria kernels into the dimethylformamide, uniformly stirring, then adding 50 weight percent of toluene diisocyanate and 5 weight percent of polyisocyanate into the dimethylformamide, uniformly mixing, foaming and forming, and wrapping aerobic bacterial layers with the anaerobic bacteria kernels, wherein the aerobic bacterial layers are condensed to be 12mm thick; 3) uniformly mixing diatomite, kaolin, coal ash, nitrocellulose, diethylene glycol butyl ether acetate and diethylene glycol butyl ether, heating to 28 ℃, rapidly dispersing anaerobic bacteria kernels coated with aerobic bacteria layers in the mixture, stirring, cooling, and then cutting, wherein a water permeable layer with the thickness of 20-25 mm can be coated outside the aerobic bacteria layers.
The depth of the clean water pool is 2m, the volume of the clean water pool is 250m3, and the nearest distance between the clean water pool and the lake is not less than 20 m.
The flow velocity of water flow in the water inlet channel and the water outlet channel is 0.5 m3/min, a grille is arranged at the lake water inlet of the water inlet channel, the gap of the grille is 50mm, a lifting device is arranged at the water outlet of the water outlet channel, and water flows back to the lake in a spraying and scattering mode after being lifted by the lifting device for 3 m.
The inner diameter of the plastic shell is 10cm, the diameter of the through holes is 0.3cm, and the distance between the through holes and the surface of the plastic shell is 5 cm.
The floating aquatic plants account for 20% of the water surface area of the water purification tank, and the floating aquatic plants with the area of 20% -30% are updated every 1-2 months. The floating aquatic plant is duckweed.
Example 2
A biological water purification system is characterized in that a water purification tank is arranged beside an eutrophic lake and is communicated with the lake through an inlet channel and an outlet channel, water in the lake flows into the water purification tank through the inlet channel, the water in the water purification tank flows back into the lake through the outlet channel, floating aquatic plants are planted on the water surface of the water purification tank, the roots of the floating aquatic plants are contained in a water purification ball, the water purification ball is a plastic shell hung at the bottom of the floating aquatic plants, through holes are formed in the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core; the anaerobic bacteria inner core comprises 1 part of bacillus subtilis, 8 parts of clostridium butyricum and 5 parts of yeast in parts by weight, the aerobic bacteria layer comprises 5 parts of nitrobacteria, 5 parts of bacillus subtilis, 15 parts of bacillus licheniformis and 1 part of photosynthetic bacteria, and the water permeable layer comprises 15 parts of diatomite, 1 part of kaolin, 10 parts of coal ash, 5 parts of nitrocellulose, 18 parts of diethylene glycol butyl ether acetate and 10-20 parts of diethylene glycol butyl ether.
The preparation process of the microbial filler comprises the following steps: 1) preparing sodium alginate aqueous solution with the mass concentration of 2% by using bacillus subtilis, clostridium butyricum and saccharomycetes, then dripping the sodium alginate aqueous solution into calcium chloride solution with the mass concentration of 3% to form small balls with the diameter of 5-10 mm, curing for 50 minutes, carrying out suction filtration, and airing to obtain anaerobic bacterium kernels; 2) adding nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria into water of which the total weight is 2 times that of the nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria to prepare mixed bacterial liquid, then adding 80% of polyether, 1% of dichloromethane, 0.4% of silicone oil, 3% of zinc chloride and 10% of mixed bacterial liquid into dimethylformamide at 23 ℃, then dispersing anaerobic bacteria kernels into the dimethylformamide, uniformly stirring, then adding 40% of toluene diisocyanate and 8% of polyisocyanate which are in the weight of the dimethylformamide, uniformly mixing, foaming and forming, and wrapping aerobic bacterial layers with the anaerobic bacteria kernels, wherein the thickness of the aerobic bacterial layers is 10-15 mm; 3) uniformly mixing diatomite, kaolin, coal ash, nitrocellulose, diethylene glycol butyl ether acetate and diethylene glycol butyl ether, heating to 26 ℃, rapidly dispersing anaerobic bacteria kernels coated with aerobic bacteria layers in the mixture, stirring, cooling, and then cutting, wherein a water permeable layer with the thickness of 20-25 mm can be coated outside the aerobic bacteria layers.
The depth of the clean water pool is 2.5m, the capacity of the clean water pool is 300m3, and the nearest distance between the clean water pool and the lake is not less than 20 m.
The flow velocity of water flow in the water inlet channel and the water outlet channel is 5m 3/min, a grille is arranged at a lake water inlet of the water inlet channel, the gap of the grille is 100mm, a lifting device is arranged at a water outlet of the water outlet channel, and water flows back to the lake in a spraying and scattering mode after being lifted by the lifting device for 1 m.
The inner diameter of the plastic shell is 20cm, the diameter of the through holes is 0.4cm, and the distance between the through holes and the surface of the plastic shell is 2 cm.
The floating aquatic plants account for 40% of the water surface area of the water purification tank, and 20% -30% of the floating aquatic plants are updated every 1-2 months. The floating aquatic plant is Japanese pagodatree leaf apple.
Example 3
A biological water purification system is characterized in that a water purification tank is arranged beside an eutrophic lake and is communicated with the lake through an inlet channel and an outlet channel, water in the lake flows into the water purification tank through the inlet channel, the water in the water purification tank flows back into the lake through the outlet channel, floating aquatic plants are planted on the water surface of the water purification tank, the roots of the floating aquatic plants are contained in a water purification ball, the water purification ball is a plastic shell hung at the bottom of the floating aquatic plants, through holes are formed in the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core; the anaerobic bacteria inner core comprises 5 parts of bacillus subtilis, 3 parts of clostridium butyricum and 10 parts of yeast by weight, the aerobic bacteria layer comprises 1 part of nitrobacteria, 10 parts of bacillus subtilis, 10 parts of bacillus licheniformis and 5 parts of photosynthetic bacteria, and the water permeable layer comprises 5 parts of diatomite, 3 parts of kaolin, 5 parts of coal ash, 10 parts of nitrocellulose, 8 parts of diethylene glycol butyl ether acetate and 20 parts of diethylene glycol butyl ether.
The preparation process of the microbial filler comprises the following steps: 1) preparing sodium alginate aqueous solution with the mass concentration of 2% by using bacillus subtilis, clostridium butyricum and saccharomycetes, then dripping the sodium alginate aqueous solution into calcium chloride solution with the mass concentration of 3% to form small balls with the diameter of 5-10 mm, solidifying for 40 minutes, carrying out suction filtration, and airing to obtain anaerobic bacterium kernels; 2) adding nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria into water of which the total weight is 2 times that of the nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria to prepare mixed bacterial liquid, then adding 50% of polyether, 5% of dichloromethane, 0.3% of silicone oil, 1% of zinc chloride and 10% of the mixed bacterial liquid into dimethylformamide at 20 ℃, then dispersing anaerobic bacteria kernels into the dimethylformamide, uniformly stirring, then adding toluene diisocyanate and 5% of polyisocyanate, wherein the weight of the toluene diisocyanate is 40% of that of the dimethylformamide, uniformly mixing, foaming and forming, and wrapping aerobic bacterial layers with the anaerobic bacteria kernels of which the thicknesses are 10-15 mm outside; 3) uniformly mixing diatomite, kaolin, coal ash, nitrocellulose, diethylene glycol butyl ether acetate and diethylene glycol butyl ether, heating to 27 ℃, rapidly dispersing anaerobic bacteria kernels coated with aerobic bacteria layers in the mixture, stirring, cooling, and then cutting, wherein a water permeable layer with the thickness of 20-25 mm can be coated outside the aerobic bacteria layers.
The depth of the clean water pool is 3m, the volume of the clean water pool is 300m3, and the nearest distance between the clean water pool and the lake is not less than 20 m.
The flow velocity of water flow in the water inlet channel and the water outlet channel is 3m 3/min, a grille is arranged at a lake water inlet of the water inlet channel, the gap of the grille is 10mm, a lifting device is arranged at a water outlet of the water outlet channel, and water flows back to the lake in a spraying and scattering mode after being lifted by the lifting device for 1 m.
The inner diameter of the plastic shell is 10cm, the diameter of the through holes is 0.2cm, and the distance between the through holes and the surface of the plastic shell is 2 cm.
The floating aquatic plants account for 30% of the water surface area of the water purification tank, and 20% -30% of the floating aquatic plants are updated every 1-2 months. The floating aquatic plant is Buffersonia dubia.
Claims (7)
1. A biological water purification system which is characterized in that: arranging a clean water tank beside an eutrophic lake, wherein the clean water tank is communicated with the lake through an inlet channel and an outlet channel, water in the lake flows into the clean water tank through the inlet channel, the water in the clean water tank flows back into the lake through the outlet channel, floating aquatic plants are planted on the water surface of the clean water tank, the roots of the floating aquatic plants are contained in a clean water ball, the clean water ball is a plastic shell suspended at the bottom of the floating aquatic plants, through holes are arranged on the surface of the plastic shell, and microbial fillers for treating the eutrophic lake water are filled in the plastic shell; the microbial filler comprises an anaerobic bacterium core with the diameter of 5-10 mm, an aerobic bacterium layer with the thickness of 10-15 mm and a water permeable layer with the thickness of 20-25 mm, wherein the aerobic bacterium layer is wrapped outside the anaerobic bacterium core; the anaerobic bacterium core comprises 1-5 parts of bacillus subtilis, 3-8 parts of clostridium butyricum and 5-10 parts of microzyme in parts by weight, the aerobic bacterium layer comprises 1-5 parts of nitrobacteria, 5-10 parts of bacillus subtilis, 10-15 parts of bacillus licheniformis and 1-5 parts of photosynthetic bacteria, and the water permeable layer comprises 5-15 parts of diatomite, 1-3 parts of kaolin, 5-10 parts of coal ash, 5-10 parts of nitrocellulose, 8-18 parts of diethylene glycol butyl ether acetate and 10-20 parts of diethylene glycol butyl ether; the preparation process of the microbial filler comprises the following steps:
1) preparing sodium alginate aqueous solution with the mass concentration of 2% by using bacillus subtilis, clostridium butyricum and saccharomycetes, then dripping the sodium alginate aqueous solution into calcium chloride solution with the mass concentration of 3% to form small balls with the diameter of 5-10 mm, solidifying the small balls for 30-50 minutes, carrying out suction filtration, and airing the small balls to obtain anaerobic bacteria kernels;
2) adding nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria into water of which the total weight is 2-3 times of that of the nitrobacteria, bacillus subtilis, bacillus licheniformis and photosynthetic bacteria to prepare mixed bacterial liquid, then adding 50-80% of polyether, 1-5% of dichloromethane, 0.3-0.5% of silicone oil, 1-3% of zinc chloride and 10-15% of mixed bacterial liquid into dimethylformamide at the temperature of 20-25 ℃, then dispersing anaerobic bacteria kernels into the dimethylformamide, uniformly stirring, then adding 30-50% of toluene diisocyanate and 5-8% of polyisocyanate by weight of the dimethylformamide, uniformly mixing, foaming and forming, and condensing and wrapping the anaerobic bacteria kernels into aerobic bacterial layers with the thickness of 10-15 mm;
3) uniformly mixing diatomite, kaolin, coal ash, nitrocellulose, diethylene glycol butyl ether acetate and diethylene glycol butyl ether, heating to 26-28 ℃, rapidly dispersing anaerobic bacteria kernels coated with aerobic bacteria layers in the mixture, stirring, cooling, and then cutting, wherein a water permeable layer with the thickness of 20-25 mm can be coated outside the aerobic bacteria layers.
2. According to claimThe biological water purification system of claim 1, characterized in that: the depth of the clean water pool is 2-3 m, and the volume of the clean water pool is 200-300 m3And the nearest distance between the clean water reservoir and the lake is not less than 20 m.
3. The biological water purification system of claim 1, wherein: the flow velocity of water flow in the water inlet channel and the water outlet channel is 0.5-5 m3And (3) min, arranging a grating at the lake water inlet of the water inlet channel, wherein the gap of the grating is 10-100 mm, arranging a lifting device at the water outlet of the water outlet channel, and enabling water to flow back to the lake in a spraying and scattering mode after the water rises by 1-3 m through the lifting device.
4. The biological water purification system of claim 1, wherein: the inner diameter of the plastic shell is 10-20 cm, the diameter of the through holes is 0.2-0.4 cm, and the distance between the through holes and the surface of the plastic shell is 2-5 cm.
5. The biological water purification system of claim 1, wherein: the floating aquatic plants account for 20% -40% of the water surface area of the water purification tank, and the floating aquatic plants with the area of 20% -30% are updated every 1-2 months.
6. The biological water purification system of claim 1, wherein: the floating aquatic plant is Buffeta Incarnata, Japanese pagodatree leaf apple, duckweed or duckweed.
7. The biological water purification system of claim 1, wherein: the anaerobic bacteria core comprises 3 parts of bacillus subtilis, 5 parts of clostridium butyricum and 8 parts of yeast in parts by weight, the aerobic bacteria layer comprises 2.5 parts of nitrobacteria, 9 parts of bacillus subtilis, 12 parts of bacillus licheniformis and 2 parts of photosynthetic bacteria, and the water permeable layer comprises 10 parts of diatomite, 2 parts of kaolin, 6 parts of coal ash, 10 parts of nitrocellulose, 15 parts of diethylene glycol butyl ether acetate and 20 parts of diethylene glycol butyl ether.
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| CN108059254A (en) * | 2017-12-26 | 2018-05-22 | 淮阴师范学院 | Landscape lake ammonia nitrogen biological purification plant and purification method |
| CN109205929B (en) * | 2018-09-13 | 2020-07-24 | 复旦大学 | Water area blue algae processing method based on biological competition principle and applied device |
| CN111661933B (en) * | 2020-06-30 | 2022-08-16 | 武汉合缘绿色生物股份有限公司 | Biological agent for adjusting water body nutrition and preventing diseases and preparation method thereof |
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| CN201201918Y (en) * | 2008-03-17 | 2009-03-04 | 河北科技大学 | Composite filling for bio-filter |
| CN101327986A (en) * | 2008-07-10 | 2008-12-24 | 华南师范大学 | Eutrophication water purification apparatus |
| CN104030457B (en) * | 2014-05-21 | 2016-02-03 | 东莞市华中生物科技有限公司 | The purifying eutrophic water method of using microbe filler and fluidized-bed |
| CN105039300A (en) * | 2015-08-19 | 2015-11-11 | 浙江工业大学 | Preparation method of heterogeneous bacteria embedding particles |
| CN105884026B (en) * | 2016-04-27 | 2019-04-02 | 北京清源中科环保科技有限公司 | A kind of method of the microbe carrier and the formula pollution administration water body that drifts along of core shell structure |
| CN105948267A (en) * | 2016-06-22 | 2016-09-21 | 陈朝民 | Purification method of eutrophicated water body |
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| CN106830344A (en) | 2017-06-13 |
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Effective date of registration: 20220628 Address after: 312000 No.9, Chaobei lane, dongzhenkeng, Chongren Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee after: Chen Jian Address before: 541004 pavement 1-4 and 2-4, 1 Tung ring new village, Putuo Road, East Ring Road, Qixing District, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: GUILIN RONGTONG TECHNOLOGY Co.,Ltd. |