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A water flea domestication method and a method for using water fleas to carry out ecological restoration of water bodies containing factory sludge from sewage treatment plants

A sewage treatment plant, ecological restoration technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, energy and wastewater treatment, etc. issues of survival

Active Publication Date: 2016-12-07
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

However, it is difficult for unaccustomed water fleas to ingest a considerable amount of active substances and various plant cells and animal cells contained in the sludge from sewage treatment plants. In summer, the temperature is high, and the ability of unaccustomed daphnia to feed and survive in water above 33 degrees Celsius decreases significantly, and the rate of decline becomes more obvious with the increase of temperature, making it difficult to survive stably for a long time , thus greatly limiting the application of daphnia in water ecological restoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The water flea domestication method of the present embodiment specifically comprises the following steps:

[0056] A: Collect some water fleas (Cladocera) in the wild;

[0057] B: Place the daphnia in a culture tank (there is a culture solution in the culture tank) for domestication and cultivation, and put the factory sludge bait of the sewage treatment plant into the culture tank to feed the daphnia.

[0058] B1: Repeat step B to continue culturing the water flea, and after the water flea reproduces for several generations, the domestication of the water flea is completed.

[0059]In this embodiment, preferably, the beneficial microorganisms are put into the water body, wherein the beneficial microorganisms can coexist with the water fleas in the intestinal tract of the water fleas, and can degrade the factory sewage of the sewage treatment plant absorbed by the water fleas in the intestinal tract of the water fleas. Harmful substances in mud. Because the number of ...

Embodiment 2

[0072] The water flea domestication method of the present embodiment specifically comprises the following steps:

[0073] A: Collect some water fleas (Cladocera) in the wild;

[0074] B: Place water fleas in the first culture pool and the second culture pool (there are culture fluids in the culture pools) for domestication and cultivation, and the culture fluids in the two culture pools contain the concentration value of 0.1 L / L of sewage treatment plant The initial temperature of the factory sludge bait is 18°C, and the concentration and water temperature of the factory sludge bait in the sewage treatment plant of the second cultivation tank remain unchanged;

[0075] Specifically:

[0076] B1: First, put water fleas into the first culture pool, the stocking density is 200-500 per liter of water, and domesticate and cultivate for 8 hours;

[0077] B2: Take out the daphnia, place it in the second culture tank, and cultivate it for 8 hours;

[0078] B3: Increase the temperat...

Embodiment 3

[0084] The water flea domestication method of the present embodiment specifically comprises the following steps:

[0085] A: Collect some water fleas (Cladocera) in the wild;

[0086] B: Place the daphnia in the first culture pool and the second culture pool (there is a culture solution in the culture tank) for domestication and cultivation, the culture solution in the first culture tank contains the concentration value of 0.1L / L For sludge, the initial temperature of the culture solution in the first culture tank is 31°C, and the initial temperature of the culture solution in the second culture tank is 18°C, and does not contain the factory sludge of the sewage treatment plant;

[0087] Specifically:

[0088] B1: First, put water fleas into the first culture pool, the stocking density is 200-500 per liter of water, and domesticate and cultivate for 8 hours;

[0089] B2: Take out the daphnia, place it in the second culture tank, and cultivate it for 8 hours;

[0090] B3: In...

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Abstract

The purpose of the present invention is to propose a method for domesticating daphnia and a method for utilizing daphnia to carry out ecological restoration of water bodies containing sludge from sewage treatment plants. The domestication method for daphnia of the present invention is as follows: placing daphnia in the nutrient solution Carry out cultivation, put the ex-factory sludge of the sewage treatment plant into the culture medium as bait to feed daphnia, gradually change the temperature of the culture medium and / or increase the concentration of the bait of the sewage treatment plant in the culture medium, until the culture medium When the temperature reaches the predetermined limit temperature and / or the concentration of the sludge bait from the sewage treatment plant in the culture medium reaches the predetermined maximum concentration, at the same time, beneficial microorganisms are put into the culture tank to complete the variable temperature acclimation of daphnia and the delivery of the sewage treatment plant Directed feeding and acclimatization of tolerance to sludge baits. Putting the domesticated daphnia according to the daphnia domestication method of the present invention into heavily polluted water rich in factory sludge and algae from sewage treatment plants can purify the water, restore the underwater ecological balance and achieve ecological self-purification of the water.

Description

technical field [0001] The invention belongs to the fields of environmental protection and biotechnology, and in particular relates to a method for domesticating water fleas and a method for using water fleas to carry out ecological restoration of water bodies containing ex-factory sludge from sewage treatment plants. Background technique [0002] At present, due to the high water content of the sludge from the sewage treatment plant, how to treat it economically and scientifically has become a difficult problem, and there is even a "sludge besieged city". Why is sludge so difficult to deal with? The main reason is that it is too difficult to get the water out of the sludge. Sludge like mud, water, and glue is the product of sewage treatment plants after sewage treatment. Unlike the silt and bottom sludge in rivers, the heavy metals in the sludge may exceed the standard, organic pollutants such as strong carcinogens polycyclic aromatic hydrocarbons, and Plasticizers may al...

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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