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A kind of biological treatment method of mercury polluted seawater

A technology for biological treatment and mercury pollution, which is applied in the field of biological treatment of mercury-contaminated seawater and can solve problems such as mercury pollution

Active Publication Date: 2020-10-20
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a need for a living organism with the characteristics of large adsorption capacity, strong selectivity, high efficiency, and low cost to adsorb mercury to solve the problem of mercury pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A biological treatment method for mercury polluted seawater, comprising the following steps:

[0030] (1) Isolation of microorganisms: the required microorganisms are separated by coating and line-drawing separation methods, and the microorganisms are Bacillus and Candida catenidae;

[0031] (2) Cultivation of microorganisms: inoculate the microorganisms isolated in step (1) into the culture medium, and then culture them. After activating the strains, select a single colony, take them out, and inoculate them into new culture medium for cultivation. The bacteria in the new medium were prepared as a bacterial liquid, and after mixing the Candida catenida strain and the Bacillus bacterial liquid in a ratio of 4:5, the carrier was added to the mixed bacterial liquid, and 3 Parts by weight of benzoin dimethyl ether, 4 parts by weight of tetramethylethylenediamine, 2 parts by weight of potassium persulfate, stirred quickly and uniformly, solidified, left to stand for 3h, and ...

Embodiment 2

[0041] A biological treatment method for mercury polluted seawater, comprising the following steps:

[0042] (1) Isolation of microorganisms: the required microorganisms are separated by coating and line-drawing separation methods, and the microorganisms are Bacillus and Candida catenidae;

[0043] (2) Cultivation of microorganisms: inoculate the microorganisms isolated in step (1) into the culture medium, and then culture them. After activating the strains, select a single colony, take them out, and inoculate them into new culture medium for cultivation. The bacteria in the new culture medium were prepared as a bacterial liquid. After mixing the Candida catenida strain and the Bacillus bacterial liquid in a ratio of 4:5, the carrier was added to the mixed bacterial liquid, and 5 Parts by weight of benzoin dimethyl ether, 5 parts by weight of tetramethylethylenediamine, 3 parts by weight of potassium persulfate, stirred quickly and uniformly, solidified, left to stand for 4h, ...

Embodiment 3

[0053] A biological treatment method for mercury polluted seawater, comprising the following steps:

[0054] (1) Isolation of microorganisms: the required microorganisms are separated by coating and line-drawing separation methods, and the microorganisms are Bacillus and Candida catenidae;

[0055] (2) Cultivation of microorganisms: inoculate the microorganisms isolated in step (1) into the culture medium, and then culture them. After activating the strains, select a single colony, take them out, and inoculate them into new culture medium for cultivation. The bacteria in the new medium were prepared as a bacterial liquid, and after mixing the Candida catenida strain and the Bacillus bacterial liquid in a ratio of 5:6, the carrier was added to the mixed bacterial liquid, and 4 Parts by weight of benzoin dimethyl ether, 5 parts by weight of tetramethylethylenediamine, 3 parts by weight of potassium persulfate, stir quickly and evenly, solidify, leave it for 3h, then irradiate fo...

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PUM

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Abstract

The invention relates to the technical field of environmental protection, and concretely relates to a biological treatment method for mercury polluted seawater. The biological treatment method for mercury polluted seawater comprises the following steps: 1, separating microorganisms: separating required microorganisms through a coating and line-drawing separation technology; 2, culturing the microorganisms: inoculating a medium with the separated microorganisms obtained in step 1, culturing the microorganisms, activating strains, selecting and taking out a single colony, inoculating a new medium with the single colony, and culturing the single colony to make the bacteria in the new medium become a bacterial solution; and 3, repairing heavy metal pollution: adding the bacterial solution obtained in step 2 into heavy metal polluted seawater to repair the heavy metal pollution. The method has the characteristics of large adsorption capacity, strong selectivity, high efficiency, low cost, and effective removal of the mercury pollution from the seawater.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a biological treatment method for mercury-polluted seawater. Background technique [0002] Mercury is a toxic pollutant with persistence, bioaccumulation and biomagnification, which has a great negative impact on human health and ecological environment. With the development of my country's economy, the scale of investment in heavy industries such as iron and steel and electric power has increased, and the output of products has also continued to increase. The resulting industrial water has also continued to increase. These industrial wastewaters are continuously discharged into rivers through sewage pipes, and finally sink The pollution of mercury to the marine environment is becoming more and more serious. At present, the methods for controlling mercury in seawater mainly include chemical precipitation, adsorption, ion exchange, membrane separation, and biologic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12N1/16C12N1/14C12N11/08C02F3/34C02F101/20C02F103/08C12R1/07C12R1/67C12R1/72
CPCC02F3/34C02F3/347C02F2101/20C02F2103/08C12N1/14C12N1/16C12N1/20C12N11/08
Inventor 郭远明李铁军杨承虎胡红美李子孟祝银
Owner MARINE FISHERIES RES INST OF ZHEJIANG