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Facultative marine fungi repairing agent modified by double amidoxime groups and method for repairing uranium-polluted water body

A marine fungus and bisamidoxime technology, which is applied in the field of uranium-contaminated water restoration, can solve problems that have not been reported in the literature, and achieve the effects of easy salvage and centralized treatment, high restoration efficiency, and no secondary pollution

Active Publication Date: 2018-08-03
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the chemical substances used for functional modification of microorganisms are mostly common organic solvents, organic acids and bases, and organic reagents with active sites, etc. The use of microorganisms for the remediation of uranium-contaminated water bodies has not been reported in the literature

Method used

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  • Facultative marine fungi repairing agent modified by double amidoxime groups and method for repairing uranium-polluted water body
  • Facultative marine fungi repairing agent modified by double amidoxime groups and method for repairing uranium-polluted water body
  • Facultative marine fungi repairing agent modified by double amidoxime groups and method for repairing uranium-polluted water body

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1. Bisamidoxime-modified facultative marine fungal remediation agent, which is prepared by using the facultative marine fungus Fusariumsp. #ZZF51 as a substrate through condensation, nucleophilic substitution and nitrile amidoximation reactions.

[0033] The facultative marine fungus Fusarium sp. #ZZF51 is produced in the sea area of ​​Zhanjiang, China, provided by the research group of Professor Lin Yongcheng, School of Chemistry and Chemical Engineering, Sun Yat-sen University. The strain is now preserved in the School of Chemistry and Chemical Engineering, Sun Yat-sen University and the School of Chemistry and Chemical Engineering, Nanhua University.

[0034] The preparation process of the facultative marine fungal restoration agent modified by bisamidoxime group is as follows:

[0035] A. The fungal culture solution is sterilized at 121 °C and 0.1 MPa, inoculated after cooling, and cultured at 25 °C for 20 days. After the mycelium is mature, the mycelium is f...

Embodiment 2

[0042] Example 2. Bisamidoxime-modified facultative marine fungus restorative agent, which is prepared by using the facultative marine fungus Fusariumsp. #ZZF51 as a substrate through condensation, nucleophilic substitution and nitrile amidoximation reactions.

[0043] The facultative marine fungus Fusarium sp. #ZZF51 is produced in the sea area of ​​Zhanjiang, China, provided by the research group of Professor Lin Yongcheng, School of Chemistry and Chemical Engineering, Sun Yat-sen University. The strain is now preserved in the School of Chemistry and Chemical Engineering, Sun Yat-sen University and the School of Chemistry and Chemical Engineering, Nanhua University.

[0044] The preparation process of the facultative marine fungal restoration agent modified by bisamidoxime group is as follows:

[0045] A. Sterilize the fungal culture solution at 121 °C and 0.1 MPa, inoculate the fungus after cooling, and culture it at 25 °C for 22 days. After the mycelium matures, the myceliu...

Embodiment 3

[0052] Example 3. Bisamidoxime-modified facultative marine fungal remediation agent, which is prepared by using the facultative marine fungus Fusariumsp. #ZZF51 as a substrate, through condensation, nucleophilic substitution and nitrile amidoximation.

[0053] The facultative marine fungus Fusarium sp. #ZZF51 is produced in the sea area of ​​Zhanjiang, China, provided by the research group of Professor Lin Yongcheng, School of Chemistry and Chemical Engineering, Sun Yat-sen University. The strain is now preserved in the School of Chemistry and Chemical Engineering, Sun Yat-sen University and the School of Chemistry and Chemical Engineering, Nanhua University.

[0054] The preparation process of the facultative marine fungal restoration agent modified by bisamidoxime group is as follows:

[0055] A. Sterilize the fungal culture solution at 121 °C and 0.1 MPa, inoculate the fungus after cooling, and culture it at 25 °C for 25 days. After the mycelium matures, the mycelium is filt...

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Abstract

The invention provides a facultative marine fungi repairing agent modified by double amidoxime groups and a method for repairing uranium-polluted water body. According to the facultative marine fungirepairing agent and the method, the facultative marine fungus Fusarium sp.#ZZF51 is adopted as the substrate, and the facultative marine fungi repairing agent is prepared through condensation, nucleophilic substitution and nitrile group amidoximation reaction. The facultative marine fungi repairing agent is used for repairing the uranium-polluted water body, the specific repairing steps are as follows: A, adding 0.05-0.25 g of the facultative marine fungi repairing agent modified by the double amidoxime groups according to the ratio that each litre contains 20-60 mg of uranyl ions, wherein thepH value of the uranium-polluted water body is controlled to be 3.0-7.0; B, carrying out vibration stirring by adopting a vibration stirring device, wherein the stirring rotation speed is 120-180 rpm, the stirring time is 30-150 min, and the temperature is 18-32 DEG C; and C, after repairing, fishing out the facultative marine fungi repairing agent modified by the double amidoxime groups, transferring the facultative marine fungi repairing agent modified by the double amidoxime groups to a safe place for drying and incineration, and finally, carrying out centralized landfill treatment.

Description

technical field [0001] The invention relates to the technical field of repairing uranium-contaminated water bodies, in particular, a bisamidoxime modification is obtained through three-step reactions of condensation, nucleophilic substitution and nitrile amidoximation using the facultative marine fungus Fusarium sp. #ZZF51 as a substrate. Facultative marine fungal remediation agent, and then applied to the remediation of uranium-contaminated water bodies. Background technique [0002] With the rapid development of the nuclear industry and the decommissioning of abandoned nuclear facilities, some uranium-containing wastewater has brought serious harm to the environment and human beings. At present, in the treatment of uranium-containing wastewater, there are mainly coagulation precipitation, chemical precipitation, extraction, membrane separation, redox, sedimentation-crystallization, coagulation-flocculation, physical adsorption, ion exchange, electrochemical treatment, evap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/14C12N1/00C02F3/34C12R1/77C02F101/20
CPCC02F3/34C02F2101/20C12N1/005C12N1/14
Inventor 谭倪杨雪纯
Owner NANHUA UNIV
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