Blue-green alga ingestion method of Simocephalus vetulus

A technology of cyanobacteria and microalgae, which is applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., and can solve the problems of water body ornamental and utilization value reduction, water body anoxic odor, and water body environment deterioration and other issues, to achieve the effect of improving the self-purification ability of water bodies, low cost, and improving transparency

Inactive Publication Date: 2015-04-01
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 old daphnia are placed in a white plastic bucket filled with 120L water indoors, and the tap water needs to be aerated for 2 days; 10-50 g of organic rot (soaked and fermented wheat bran) is fed irregularly as food for the elderly Carry out expanded cultivation of daphnia; when the biomass of daphnia reaches 200 / liter, 5-10g of wet cyanobacteria can be added to the water body to strengthen and induce domestication, so that it can adapt to the water environment with cyanobacteria as the main food.

[0022] Harvest the domesticated old daphnia with a nylon sieve (filter) with a pore size of about 1.0×1.0mm: the juvenile daphnia smaller than the mesh continue to be cultivated in the original water body; 0.1M in the laboratory 3 Add 20 grams of old daphnia daphnia (large-sized adults that cannot pass through the nylon sieve) to the water body; under the condition that there is no predation pressure of the latter stage organisms, use it to treat microalgae a...

Embodiment 2

[0024] The collected old daphnia are placed in a white plastic bucket filled with 120L of water indoors, and the tap water needs to be aerated for 2 days; 5-10g of baker’s yeast and microalgae are fed from time to time to expand the cultivation of old daphnia; After the daphnia biomass reaches 200 / liter, 5-10g of wet cyanobacteria (taken from natural eutrophic water) and one ten-thousandth of the weight of water compound polysaccharides can be added to the water body. Composed of ginseng polysaccharides, the weight ratio of the three polysaccharides is 1: 2: 1, and it is strengthened to induce domestication, so that it can adapt to the water environment with cyanobacteria as the main food. A body of water with complex polysaccharides.

[0025] Harvest the domesticated old daphnia with a nylon sieve (filter) with a pore size of about 1.0×1.0mm: the juvenile daphnia smaller than the mesh continue to be cultivated in the original water body; 0.1M in the laboratory 3 Add 30 g...

Embodiment 3

[0027] The collected old daphnia are placed in a white plastic bucket filled with 120L water indoors, and the tap water needs to be aerated for 2 days; 5-20 g of microalgae is fed irregularly (use a dense filter to fish out the green algae in the fertilizer pool pit) , diatoms) as food to expand the cultivation of old daphnia, adding a compound polysaccharide of one ten-thousandth of the weight of water in 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 old daphnia are significantly higher than those without adding complex polysaccharides; after the biomass of daphnia reaches 200 / liter, 5-10g of wet cyanobacteria can be added to the water body (natural eutrophication fished in the water body) to induce domestication, so that it can adapt to the water environment with cyanobacteria as the main food.

[00...

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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 Patents(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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