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Method for preparing macroporous polymer fixed quinonoid compound

A technology of quinone compounds and polymers, which is applied in the field of preparation of macroporous polymers to immobilize quinone compounds, can solve problems such as secondary pollution, accelerated anaerobic biotransformation of refractory organic matter, large specific surface area, etc., to solve secondary pollution, Good catalytic performance, the effect of solving technical bottlenecks

Inactive Publication Date: 2010-04-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention overcomes the deficiencies of the original technology, selects a macroporous polymer with no biological toxicity, large specific surface area, good mass transfer performance, high mechanical strength, stable properties and not easy to decompose as the carrier for immobilizing the water-soluble quinone compound, and adopts a chemical method , the water-soluble quinone compound is covalently immobilized in the biocarrier macroporous polymer, which solves the technical problem that it is easily lost with the effluent as a redox mediator and causes secondary pollution, and makes the immobilized quinone compound have better catalytic performance. properties to accelerate the anaerobic biotransformation of refractory organics

Method used

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  • Method for preparing macroporous polymer fixed quinonoid compound
  • Method for preparing macroporous polymer fixed quinonoid compound

Examples

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Embodiment 1

[0019] At room temperature, in 50mL of 2mmol / L sodium hydroxide solution, add 24g of diethylenetriamine and 5 pieces of washed and dried polyvinyl alcohol foam (about 1cm in size) 3 ), after stirring and reacting for 3 hours, rinse with distilled water and dry. In a 500mL flask with a stirrer, add 5 pieces of aminated polyurethane foam and 100mL of 2mmol / L NaOH solution; dissolve 0.6g of anthraquinone-2-sulfonyl chloride in 25mL of dichloromethane, and then This was added over 30 minutes and stirring was continued for 1 hour before removal. Wash with distilled water and dry to obtain polyvinyl alcohol foam containing quinone compound. The amount of quinone contained in 1 gram of polyvinyl alcohol foam block prepared by this method is 0.2 mmol. The polyvinyl alcohol foam containing quinone compounds can promote the anaerobic biotransformation of azo dyes, nitroaromatics and chlorinated aromatics, and its catalytic performance remains basically unchanged after repeated use for...

Embodiment 2

[0021] At room temperature, in 50mL of 2mmol / L sodium hydroxide solution, add 47.85g of diethylenetriamine and 5 pieces of washed and dried 0.68g polyurethane foam containing polyvinyl alcohol (the size is about 1cm 3 ), after stirring and reacting for 3 hours, rinse with distilled water and dry. In a 500mL flask with a stirrer, add 5 pieces of aminated polyurethane foam and 100mL of 2mmol / L NaOH solution; dissolve 0.6g of anthraquinone-2-sulfonyl chloride in 25mL of dichloromethane, and then This was added over 30 minutes and stirring was continued for 1 hour before removal. Wash with distilled water and dry to obtain polyurethane foam containing quinone compound. The amount of quinone contained in 1 gram of polyurethane foam block prepared by this method is 0.097 mmol. The polyurethane foam containing quinone compounds can promote the anaerobic biotransformation of azo dyes, nitroaromatics and chlorinated aromatics, and its catalytic performance remains basically unchanged...

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Abstract

The invention discloses a method for preparing a macroporous polymer fixed quinonoid compound and belongs to the technical field of water treatment in environment engineering. The method is characterized by selecting hydroxyl group containing macroporous polymers for aminating treatment so as to make the macroporous polymers contain primary amino groups in certain quantity. At the room temperature, the macroporous polymers are added in solution of sodium hydroxide, then anthraquinone compounds, which are dissolved in methylene chloride and contain sulfonic acid chloride groups, are added, andthe mixed solution stirred for reaction for 0.5 to 2 hours, so that the fixture of the quinonoid compounds are realized. The macroporous polymers containing quinonoid compounds can be applied to an anaerobic reactor to improve the biological conversion rate of hardly degradable organic matters. The method has the advantages that: the quinonoid compounds are covalently fixed on a biological carrier which is macroporous polymers, so that a redox mediator is more easily contacted with microorganisms; and the problem of secondary pollution caused by emission of water soluble quinonoid compounds along with discharge water is solved.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering water treatment and relates to a preparation method of macroporous polymer immobilized quinone compound. Background technique [0002] With the development of society, the annual discharge of refractory organic wastewater (such as wastewater containing halogenated, azo and nitroaromatics) to the water environment has increased significantly. This type of wastewater has the characteristics of high concentration of organic matter and complex components, and is one of the most difficult industrial wastewater to treat. Biological treatment is usually the preferred technology, because azo bonds and nitro groups have strong electron-withdrawing effects, making it difficult to degrade them directly through oxidation. Anaerobic biological treatment of these refractory organics can improve their subsequent aerobic biodegradability. Therefore, the anaerobic-aerobic process is the most ef...

Claims

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Application Information

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IPC IPC(8): C08G18/83C08F16/06C08F8/36C02F3/28
CPCC08J2201/036C08J9/40C02F3/28
Inventor 吕红周集体王竞司伟磊
Owner DALIAN UNIV OF TECH
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