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Compound degradation agent for degrading rhodamine B dye and preparation method of compound degradation agent

A degrading agent and dye technology, applied in chemical instruments and methods, water pollutants, water treatment of special compounds, etc., can solve the problems of microbial poisoning, limit the application of bioremediation technology, etc., and achieve the effect of reducing the poisoning effect.

Active Publication Date: 2017-06-13
平湖市飞天人图文设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some toxic organic pollutants, such as phenol and rhodamine B, have a great poisonous effect on most microorganisms, thus greatly limiting the application of bioremediation technology in the treatment of toxic organic pollutants

Method used

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  • Compound degradation agent for degrading rhodamine B dye and preparation method of compound degradation agent

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Effect test

Embodiment 1

[0026] A kind of preparation method of the composite degradation agent of the degradation rhodamine B dye of the present embodiment, comprises the following steps:

[0027] (1) Preparation of nano bismuth tungstate:

[0028] (1.1) Bismuth nitrate pentahydrate and sodium tungstate dihydrate are dissolved in a mixed solution of water and ethylene glycol to obtain a bismuth tungstate precursor solution, wherein the ratio of bismuth nitrate, sodium tungstate, ethylene glycol and water is 0.2mmol: 0.1mmol: 1mL: 0.5mL; transfer the obtained bismuth tungstate precursor solution into a hydrothermal reaction kettle for coordination polymerization reaction at a temperature of 160°C for 90h, centrifuge after the reaction is completed, and remove the precipitate washing and drying to obtain a coordination polymer;

[0029] (1.2) Put the coordination polymer obtained in step (1.1) into a muffle furnace, heat up to 600°C at a heating rate of 15°C / min for high-temperature heat treatment for...

Embodiment 2

[0038] A preparation method of a composite degrading agent for degrading Rhodamine B dye of the present embodiment, comprising the following steps:

[0039] (1) Preparation of nanometer bismuth tungstate:

[0040] (1.1) Dissolving bismuth nitrate pentahydrate and sodium tungstate dihydrate in a mixed solution of water and ethylene glycol to obtain a bismuth tungstate precursor solution, wherein the ratio of bismuth nitrate, sodium tungstate, ethylene glycol and water is 0.2mol:0.1mol:1L:0.5L; transfer the obtained bismuth tungstate precursor solution into a hydrothermal reaction kettle, and carry out a coordination polymerization reaction at a temperature of 160 °C and a time of 90 h. Wash and dry to obtain a coordination polymer;

[0041] (1.2) Put the coordination polymer obtained in step (1.1) into a muffle furnace, and heat it up to 600°C at a heating rate of 15°C / min for a high temperature heat treatment for 2.5h. Grind into powder to obtain nanometer bismuth tungstate....

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Abstract

The invention discloses a compound degradation agent for degrading rhodamine B dye and a preparation method of the compound degradation agent. The preparation method includes: mixing bismuth nano-tungstate and nitrobacter winogradskyi spore liquid with a sodium carboxymethyl cellulose solution to obtain a mixture; adding the mixture to a fermentation medium, and performing magnetic stirring at normal temperature for 48-72 hours at rotation speed of 400r / min-500r / min to obtain the compound degradation agent for the rhodamine B dye. By the aid of synergistic effect of bismuth tungstate and nitrobacter winogradskyi, degradation of toxic organic pollutants of rhodamine B can be completed, covering protection function of sodium carboxymethyl cellulose is achieved, and toxic action of the rhodamine B on the nitrobacter winogradskyi can be reduced; the compound degradation agent has the advantages of low generation cost, good treatment effect and the like.

Description

technical field [0001] The invention relates to the technical field of organic dye wastewater treatment, in particular to a composite degradation agent for degrading rhodamine B dye and a preparation method thereof. Background technique [0002] In the process of textile printing and dyeing, a large number of additives that pollute the environment and are harmful to the human body are used. Most of these additives are discharged in the form of liquid and inevitably enter the water environment. Such wastewater has deep color, high content of organic pollutants, The biodegradability is poor, and it is difficult to treat with conventional methods such as physical adsorption method and Fenton method, which will lead to long-term deterioration of polluted water quality and seriously endanger the water environment and human health. [0003] Photocatalysis is a technology that converts the light energy existing in nature into the energy required for chemical reactions to produce ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F3/34C02F101/38
CPCC02F1/30C02F3/34C02F2101/308C02F2101/38C02F2305/10
Inventor 刘军亮
Owner 平湖市飞天人图文设计有限公司
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