A method for biological purification of freshwater aquaculture water environment
A technology for freshwater aquaculture and biological purification, applied in the direction of biochemical equipment and methods, chemical instruments and methods, microorganisms, etc., can solve the problems that cannot meet the requirements of aquaculture water purification, achieve obvious economic and social benefits, and the effect is remarkable. low cost effect
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Embodiment 1
[0017] Embodiment 1: Composite microorganisms and composite enzyme solid preparations purify the freshwater aquaculture environment
[0018] 1. Test plan
[0019] 1. Preparation of composite microorganism and composite enzyme solid preparation
[0020] Add the liquid medium into the fermenter, wherein the composition of the liquid medium is as follows: 10g of molasses, 0.7g of corn steep liquor freeze-dried powder, 0.01g of ammonium sulfate, add water to make up 1000mL, and the amount of liquid added is 70% of the volume of the fermenter %, autoclave for 30 minutes, and inoculate after cooling to 33°C. Bacillus subtilis (37°C), Alcaligenes faecalis (37°C), Rhodopseudomonas palustris (35°C), Mendoza Five strains of Pseudomonas mendocina (35°C), Candida tropicalis (30°C), and S.microflavus (30°C) were cultured for 20 hours, and the cultured Centrifuge the liquid, collect the bacteria, add bran 4 times the weight of the bacteria to the bacteria, boil and dry the mixture of the...
Embodiment 2
[0033] Example 2: Microbial flocculants, composite microorganisms and composite enzyme solid preparations purify the freshwater aquaculture environment
[0034] 1. Test plan
[0035] 1. Preparation of microbial flocculant:
[0036] Dilute the treated high-concentration monosodium glutamate wastewater produced by the monosodium glutamate factory with water to a mass concentration of 20% as the basic medium, add 2g of glucose per liter of medium, and add it to the fermenter. The amount of liquid added is 70% of the volume of the fermenter . Autoclaved for 30 minutes, cooled to 30°C, inoculated with Bacillus sphaeicus, and cultured at 30°C for 24 hours (oxygen was introduced for the first 8 hours). Add 20% dehydrated alcohol accounting for the total volume of the fermentation broth to separate out polysaccharides, add bran that is 4 times its mass to the polysaccharides, boil and dry the mixture of polysaccharides and bran in a fluidized bed, Obtain microbial flocculant.
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Embodiment 3
[0049] Example 3: Microbial flocculants, composite microorganisms, composite enzyme solid preparations and biological floating beds compound to purify the freshwater aquaculture environment
[0050] 1. Test plan
[0051] 1. Preparation of biological floating bed
[0052] Choose a flat polystyrene foam board with a thickness of 1.5cm as the floating bed formwork, and drill holes according to the row spacing of 5cm. The whole floating bed uses U-shaped iron nails, bamboo chips and soft ropes to connect the floating bed formwork with plant planting holes piece by piece. become. After the overall assembly of the floating bed is completed, the two ends of the floating bed are placed in the water and piled with galvanized pipes, and the ropes at both ends of the floating bed are tied to the piles. Then cut cress and water spinach, and place them at a suitable depth in the water body according to the growth height of the plants, combined with floating balls and counterweights.
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