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Biological purification method for freshwater aquaculture water environment

A freshwater aquaculture and biological purification technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as the inability to meet the requirements of aquaculture water purification, and achieve obvious economic benefits and social benefits, simple operation and remarkable effect

Active Publication Date: 2012-07-11
江苏绿科生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In short, the aquaculture water is not only rich in N, P, but also excessive bait, shrimp excrement, algae and aquatic plants and other biological remains, so the existing microbial flocculants, enzyme preparations, microbial water quality improvers and biological floating beds A single means or product such as can no longer meet the requirements of aquaculture water purification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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.

[0...

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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PUM

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Abstract

The invention discloses a biological purification method for freshwater aquaculture water environment, which uses more than two of a microbial flocculating agent, a composite microbial preparation, a composite enzyme preparation or a biological floating bed to purify the freshwater aquaculture water environment. The biological flocculating agent is adopted to reduce contents of COD, BOD and SS in culture water and promote the growth of beneficial microbes; the enzymolysis of the composite enzyme preparation is utilized to decompose residual nutrients in the water into micro-molecules; the degradation effect of the composite microbial preparation is utilized to finally transform the micro-molecular nutrients into nitrogen released to air, and aged microbial thalli are removed through the microbial flocculating agent; and the artificial floating bed is utilized to absorb and adsorb nitrogen, phosphorous and organic matters in the culture water. Contents of ammonia nitrogen and nitrite nitrogen in the culture water can be reduced and there are no adverse influences on fish through above processing. The method which has the advantages of simple operation, low cost and substantial effect has obvious economic benefits and social benefits.

Description

technical field [0001] The invention relates to a method for biological purification of aquaculture water, in particular to a method for purifying the aquaculture water environment using multiple technologies such as microbial flocculation, composite enzyme preparation and composite microbial preparation degradation, and biological floating bed absorption and adsorption. Background technique [0002] China is the world's largest aquaculture country both in terms of aquaculture output and aquaculture scale. However, most aquaculture farmers in my country aim to pursue output and short-term economic benefits. The breeding density is too high, coupled with weak awareness of environmental protection, aquaculture diseases are increasing year by year. At the same time, most of my country's aquaculture industry is static water aquaculture, and high-density aquaculture causes a large amount of organic matter such as fish and shrimp excrement and residual bait to deposit on the botto...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 路怀灯
Owner 江苏绿科生物技术有限公司
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