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Treatment method of phenolic wastewater

A treatment method and technology for phenolic wastewater, applied in water/sewage treatment, light water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of affecting the degradation of phenolic substances, reducing catalytic activity, easy agglomeration, etc., to achieve enhanced Phenolic substances, improve catalytic activity, solve the effect of agglomeration

Inactive Publication Date: 2019-03-29
安徽环境科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But nano-Fe 3 o 4 Particles have interactions between magnetic dipoles and are easy to agglomerate, resulting in a decrease in catalytic activity and affecting the H 2 o 2 The effect of degrading phenolic substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of treatment method of phenolic waste water proposed by the present invention, comprises the following steps: in phenolic waste water, add H 2 o 2 , Fe 3 o 4 / PANI composite material, followed by microwave treatment.

[0022] Among them, Fe 3 o 4 / PANI composite material is prepared according to the following process:

[0023] S1, the nano-Fe 3 o 4 Mix with ethanol aqueous solution, ultrasonically treat, then add sodium lauryl sulfate and aniline, mix well, add concentrated hydrochloric acid, stir to obtain material A;

[0024] S2. Add ammonium persulfate aqueous solution to material A, stir, filter, wash, dry, and grind to obtain Fe 3 o 4 / PANI Composite.

Embodiment 2

[0026] A kind of treatment method of phenol-containing wastewater proposed by the present invention comprises the following steps: adding 0.15 parts of concentration of 25wt% H to 40 parts of phenol-containing wastewater by weight 2 o 2 , 40 parts of Fe 3 o 4 / PANI composite material, and then carry out microwave treatment, wherein, microwave power is 70W, and microwave treatment time is 6min.

[0027] Among them, Fe 3 o 4 / PANI composite material is prepared according to the following process:

[0028] S1, by weight 0.02 parts of nano-Fe 3 o 4 Mix with 100 parts of ethanol aqueous solution with a volume concentration of 8%, ultrasonically treat for 20min, then add 0.01 part of sodium lauryl sulfate and 0.4 part of aniline, mix well, add 5 parts of concentrated hydrochloric acid with a concentration of 35wt%, and stir at room temperature 40min, get material A;

[0029] S2. Add 9 parts of ammonium persulfate aqueous solution with a concentration of 6wt% to material A, s...

Embodiment 3

[0031] A kind of treatment method of phenol-containing wastewater proposed by the present invention comprises the following steps: adding 0.3 parts of concentration of 35wt% H to 60 parts of phenol-containing wastewater by weight 2 o 2 , 60 parts of Fe 3 o 4 / PANI composite material, and then carry out microwave treatment, wherein, microwave power is 210W, and microwave treatment time is 4min.

[0032] Among them, Fe 3 o 4 / PANI composite material is prepared according to the following process:

[0033] S1, by weight 0.03 parts of nano-Fe 3 o 4 Mix with 120 parts of ethanol aqueous solution with a volume concentration of 12%, ultrasonically treat for 15min, then add 0.02 parts of sodium lauryl sulfate and 0.6 parts of aniline, mix well, add 7 parts of concentrated hydrochloric acid with a concentration of 40wt%, and stir at room temperature 30min, obtain material A;

[0034] S2. Add 11 parts of ammonium persulfate aqueous solution with a concentration of 8wt% to materia...

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PUM

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Abstract

The invention discloses a treatment method of phenolic wastewater. The method comprises the following steps: adding H2O2 and a Fe3O4 / PANI composite material into the phenolic wastewater, and then performing microwave treatment. The invention provides the treatment method of the phenolic wastewater, and the method has the advantages of being short in reaction time, high in treatment efficiency, easy to operate and control, free from secondary pollution, and the like when being used for degrading phenolic substances in the wastewater.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for treating phenol-containing wastewater. Background technique [0002] Phenol pollution in the environment mainly refers to the pollution of water by phenolic compounds. Phenol-containing wastewater is one of the most harmful and widely polluting industrial wastewater in the world today, and is an important source of water pollution in the environment. Phenol is contained in the wastewater discharged from many industrial fields such as gas, coking, oil refining, metallurgy, machinery manufacturing, glass, petrochemical, wood fiber, chemical organic synthesis industry, plastic, medicine, pesticide, paint and other industries. Phenolic compounds are highly toxic organic pollutants, and most nitrophenols have mutagenic effects; methyl derivatives of phenols are not only teratogenic, but also carcinogenic. Their toxicity increases with the degree of substitut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/30B01J31/28C02F101/34
CPCB01J31/28C02F1/302C02F1/722C02F1/725C02F2101/345
Inventor 张青方降龙张强董献彬孔殿超吴晨光刘旭
Owner 安徽环境科技集团股份有限公司
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