A method for domesticating daphnia and a water body ecological restoration method

A technology for ecological restoration and water purification, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult long-term stable survival and serious water flea pollution

Active Publication Date: 2019-01-08
广东汇美生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the existing wild lakes and heavily polluted water bodies are rich in toxic substances and toxic cyanobacteria and other harmful substances. It is difficult for unaccustomed water fleas to survive in the wild for a long time in heavily polluted water bodies rich in toxic substances and toxic cyanobacteria.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment of the method for domesticating daphnia

[0034] The method for domesticating daphnia described in this example enables it to survive stably and for a long time in water bodies containing high concentrations of toxic substances. This domestication method specifically comprises the following steps: 1). Collect some water fleas (Cladocera) in the wild, and the stocking density of water fleas in the cultivation pool is 200-500 per liter of water at this moment, and it is placed in a concentration value of 0.116 μg / L deltamethrin breeding and cultivating; at the same time, the concentration value of 1-3 mg / L microcystin-LR is put into the cultivation pond, and the microcystin-LR in the cultivation pond during acclimation The concentration remains within this range. The so-called high concentration is a relative value, which is slightly higher than the concentration of toxic substances in common water bodies in nature but not higher than its 24hLC 50 30% of. A...

Embodiment 2

[0040] Embodiment of the method for domesticating daphnia

[0041] The method for domesticating daphnia described in this example enables it to survive stably and for a long time in water bodies containing high concentrations of toxic substances. Considering that the concentration of toxic substances in water bodies will gradually decay over time, and the half-lives of different toxic substances in water bodies are different, so the domestication time of toxic substances is basically the same as their half-lives.

[0042] The method for domesticating daphnia described in this example enables it to survive stably and for a long time in water bodies containing high concentrations of toxic substances. This domestication method specifically comprises the following steps: 1). Collect some water fleas (Cladocera) in the wild, and the stocking density of water fleas in the cultivation pool is 200-500 per liter of water at this moment, and it is placed in a concentration value of 0.11...

Embodiment 3

[0046] Embodiment of water body ecological restoration method

[0047] 1. A single toxic substance was detected in the water body

[0048] When only a single toxic substance is detected in the water body to be remediated, such as deltamethrin. According to the method for domesticating daphnia described in Example 1, the daphnia obtained after being domesticated by deltamethrin is put into a water body rich in toxic substances and algae, so that it feeds on algae, absorbs and degrades the deltamethrin , thereby purifying the water body. Of course, this situation is applicable to the detection of a single toxic substance in the water body, and the toxic substance is deltamethrin. If other single toxic substances are detected in the water body to be restored, daphnia can also be obtained according to the domestication method of Example 1 to restore the ecology of the water body.

[0049] 2. A variety of toxic substances were detected in the water body

[0050] When two toxic ...

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Abstract

The present invention discloses a daphnia acclimation method and a water body ecological restoration method. The aim of daphnia acclimation is to enable daphnia to stably survive for a long time in water bodies containing high-concentration toxic substances. The daphnia acclimation method comprises the steps of breeding and cultivating the daphnia in a cultivation pool containing toxic substances; and meanwhile, putting microcystic toxin LR into the cultivation pool, the concentration of the microcystic toxin LR in the cultivation pool maintaining within a certain range. According to the water body ecological restoration method, the daphnia acclimation method is determined by detecting types of the toxic substances in the water bodies to be restored, the acclimated daphnia is put into the water bodies which are seriously polluted and rich in toxic substances and algae, the water bodies can thus be purified, the underwater ecological balance is repaired, and the ecological self-purification of the water bodies is achieved.

Description

technical field [0001] The invention relates to a method for domesticating daphnia, and also relates to a water body ecological restoration method, in particular to a eutrophic water body ecological restoration method. Background technique [0002] The reason for the outbreak of blue-green algae is that various production activities of human beings discharge nitrogen and phosphorus nutrients into rivers, lakes and other water bodies. When the ecological self-purification ability of lakes is destroyed, nutrients such as nitrogen and phosphorus continue to accumulate in water bodies. A large amount of accumulation leads to the flooding of single-celled algae, especially cyanobacteria (mainly Microcystis aeruginosa), which seriously pollutes the water quality. Most of the cyanobacteria cells have a well-developed alginate layer and are surrounded by a thick layer of polysaccharides. These alginates and polysaccharides can hardly be decomposed by the digestive enzymes of any hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/033C02F3/32
CPCY02W10/37
Inventor 蓝志娟
Owner 广东汇美生态科技有限公司
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