Treatment method of rhodamine b dye wastewater

A dye wastewater and treatment method technology, which is applied in the field of rhodamine B dye wastewater treatment, can solve the problems of microbial poisoning and limit the application of bioremediation technology, and achieve the effects of reducing toxicity, easy control of reaction conditions, and simple operation

Active Publication Date: 2020-11-03
SHISHI LONGXINGLONG TEXTILE IND CO LTD
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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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  • Treatment method of rhodamine b dye wastewater

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Experimental program
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Effect test

Embodiment 1

[0028] A treatment method for rhodamine B dye wastewater, comprising the following steps:

[0029] a. Add 1ml of compound degradation agent to 100ml concentration of Rhodamine B waste water of 20mg / L, and add the required nutrient solution of Nitrobacter victoria (containing glucose 10mg / mL, yeast extract 5mg / mL, peptone 10mg / mL) mL, potassium dihydrogen phosphate 0.5mg / mL, magnesium sulfate 0.5mg / mL), the dye concentration in the wastewater at this time is recorded as C 0 .

[0030] Wherein, composite degradation agent adopts following method to prepare:

[0031] (1) Preparation of nano bismuth tungstate:

[0032] (1.1) Dissolve bismuth nitrate pentahydrate and sodium tungstate dihydrate in a mixed solution of water and ethylene glycol to obtain a bismuth tungstate precursor solution, wherein bismuth nitrate pentahydrate, sodium tungstate dihydrate, ethylene glycol and The ratio of water is 0.2mmol: 0.1mmol: 1mL: 0.5mL; transfer the obtained bismuth tungstate precursor sol...

Embodiment 2

[0040] A treatment method for rhodamine B dye wastewater, comprising the following steps:

[0041] a. Select dye wastewater from a printing and dyeing factory in Jiangyin City, Jiangsu Province. The main pollutant of the dye wastewater is rhodamine B. After testing, the concentration of rhodamine B exceeds 120mg / L. The dye wastewater is diluted to a concentration of rhodamine B of 20mg / L.

[0042] b. add composite degradation agent in the Rhodamine B dye wastewater after above-mentioned dilution in the ratio of 1.5: 100 by the volume ratio of composite degradation agent and diluted Rhodamine B dye wastewater, and add the required nutrition of Nitrobacter victoria solution (containing glucose 15g / L, yeast extract 10g / L, peptone 15g / L, potassium dihydrogen phosphate 0.5g / L, magnesium sulfate 0.5g / L), the dye concentration in the wastewater at this time is recorded as C 0 .

[0043] Wherein, composite degradation agent adopts following method to prepare:

[0044] (1) Preparatio...

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Abstract

The invention discloses a treatment method of rhodamine B dye wastewater. The treatment method comprises the following steps of adding a compound degradation agent of rhodamine B dye into the rhodamine B dye waste with a concentration of 15mg / L to 25mg / L according to a proportion that the volume ratio of the compound degradation agent to the rhodamine B dye wastewater is (2 to 5) to 100, adding a nutrient solution needed by nitrobacter winogradsky into an obtained mixture, carrying out a reaction under a xenon lamp of 400W to 600W, and lasting a light application time for 270min to 300min, so as to complete the degradation on an organic pollutant. The compound degradation agent is used for completing the degradation on toxic organic-pollutant rhodamine B by utilizing the synergistic effect of bismuth tungstate and the nitrobacter winogradsky; sodium carboxymethylcellulose plays a coating protective effect, and can be used for decreasing the toxic effect of the rhodamine B on the nitrobacter winogradsky. The treatment method has advantages that the generation product is low, the treatment effect is good, and the like.

Description

technical field [0001] The invention relates to the technical field of organic dye wastewater treatment, in particular to a method for treating rhodamine B dye wastewater. Background technique [0002] In the process of textile printing and dyeing, a large number of auxiliaries that pollute the environment and are harmful to the human body are used. Most of these auxiliaries are discharged in the form of liquid and inevitably enter the water environment, causing water pollution. For example, rhodamine B dyes are carcinogenic and mutagenic. This type of wastewater has deep chroma, high content of organic pollutants, and poor biodegradability. It is difficult to treat with conventional methods such as physical adsorption and Fenton methods, resulting in long-term deterioration of polluted water quality. , seriously endangering the water environment and human health, so the degradation treatment of this type of wastewater is very important and urgent. [0003] Photocatalysis i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F101/30
CPCC02F1/30C02F3/34C02F2101/308
Inventor 刘军亮
Owner SHISHI LONGXINGLONG TEXTILE IND CO LTD
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