Blue-green alga ingestion method of Simocephalus vetulus

A cyanobacteria and microalgae technology, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc. problems, to achieve the effect of improving the self-purification ability of water body, improving transparency and low cost

Inactive Publication Date: 2012-12-12
安徽联合教育有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the impact of human beings on the natural environment, the degree of eutrophication of water bodies has become higher and higher recently, resulting in a large number of micro-phytoplankton algae in water bodies, especially harmful algae such as microcystic cyanobacteria (commonly known as "lakes") in summer and autumn (high temperature) water bodies. "Indigo" or "Water Bloom") broke out, algal bodies will release toxins after death, the water body will be anoxic and foul, causing a large number of aquatic animals to die, and the water body environment will be extremely deteriorated, resulting in a great reduction in the ornamental and utilization value of the water body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The collected aged low-forehead fries are placed in a white plastic bucket with 120L of water indoors. The tap water needs to be aerated for 2 days; 10-50 g of organic decay (wheat bran after soaking and fermentation) is fed irregularly as food for the elderly Carrying out expansion cultivation of low-front moina; after moina biomass reaches 200 / liter, 5-10g wet cyanobacteria can be added to the water body to strengthen induction and domestication, so that it can adapt to the water environment with cyanobacteria as the main food.

[0022] Use a nylon sieve (filter mesh) with an aperture of about 1.0×1.0mm to harvest the domesticated aged low forehead moina: The young moina that is smaller than the mesh will continue to be cultured in the original water body; 0.1M in the laboratory 3 Adding old low-forehead moina (large size adult body that cannot pass through a nylon sieve) into the water body weighs 20 grams; under the condition of no predation pressure of the latter-st...

Embodiment 2

[0024] The collected aged low-forehead fries are placed in a white plastic bucket with 120L of water indoors, and the tap water needs to be aerated for 2 days; 5-10g baker's yeast and microalgae are fed from time to time to expand the aged low-forehead fries; When the biomass reaches 200 per liter, 5-10g wet cyanobacteria (caught from natural eutrophic water bodies) and 1 / 10,000th of the water weight compound polysaccharide can be added to the water body. The compound polysaccharide consists of lentinan, wolfberry polysaccharide, Ginseng polysaccharides are mixed, the weight ratio of the three polysaccharides is 1:2:1, and it is strengthened, induced and domesticated to adapt to the water environment with cyanobacteria as the main food. The vitality, quantity and size of the elderly low forehead are significantly higher than that of no addition. Compound polysaccharide water.

[0025] Use a nylon sieve (filter mesh) with an aperture of about 1.0×1.0mm to harvest the domestica...

Embodiment 3

[0027] The collected aged low-forehead fries are placed in a white plastic bucket with 120L of water indoors, and the tap water needs to be aerated for 2 days; 5-20 g of microalgae are fed from time to time (use a dense filter to catch the green algae in the pit of the fertilizer pool , Diatom) is the food to expand the cultivation of low-forehead moina. The compound polysaccharide of one ten thousandth of the weight of water is added to the water body. The compound polysaccharide is composed of lentinan, wolfberry polysaccharide, and ginseng polysaccharide. The weight ratio of the three polysaccharides is 1 : 2:1, the vitality, quantity, and size of the aged low forehead moina are significantly higher than that of the water body without compound polysaccharide; when the moina biomass reaches 200 / L, 5-10g wet cyanobacteria can be added to the water body (natural eutrophication Fished in water) to induce domestication to adapt to the water environment where cyanobacteria are ...

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PUM

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Abstract

The invention discloses a blue-green alga ingestion method of Simocephalus vetulus. The method comprises: conducting enrichment and expansion cultivation and blue-green alga induction on Simocephalus vetulus collected in a natural eutrophic water body; selecting and breeding Simocephalus vetulus able to ingest blue-green algae and propagate normally; then according to the eutrophication degree of the water body needing control, putting a certain amount of adult Simocephalus vetulus into a unit of water body, and under the condition of no next-stage organism predation pressure, and making use of the adult Simocephalus vetulus to ingest microalgae, bacteria and organic detritus in the water body to increase the water body transparency rapidly and promote restoration of other animals and plants in the water body, thus finally achieving ecological balance of the water environment. The method disclosed in the invention has the characteristics of easily available materials, convenient cultivation, low cost, environmental safety of aboriginal species, high efficiency and the like, thus providing a new daphnia species for the technology of biological control of water eutrophication.

Description

technical field [0001] The invention belongs to the field of biological treatment of water environment pollution, and in particular relates to a method for domesticating old daphnia that feeds on blue-green algae. Background technique [0002] When the composition of organisms (producers, consumers, decomposers) in natural water reaches a reasonable balance, the diversity of water organisms can be better reflected, and the self-purification ability of water can be better exerted. With the impact of human beings on the natural environment, the degree of eutrophication of water bodies is getting higher and higher recently, resulting in the proliferation of micro-planktonic algae in water bodies, especially harmful algae such as microcystic cyanobacteria (commonly known as "lakes") in summer and autumn (high temperature) water bodies. "Indigo" or "Water Bloom") breaks out, algal bodies will release toxins after they die, and the water body will be anoxic and foul, causing a lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 朱杰周呈祥吴文坤
Owner 安徽联合教育有限公司
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