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Method for treating benzopyrene-containing wastewater

A wastewater treatment and benzopyrene technology, which is applied in water/sewage treatment, adsorption water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of low benzopyrene content and difficult treatment

Pending Publication Date: 2019-03-22
湖北申昙环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the content of benzopyrene in the waste water is relatively low and the technical problem is not easy to handle. A method for treating waste water containing benzopyrene is provided. The treatment method has the advantages of short flow process, low equipment investment, simple and reliable operation, The advantages of low energy consumption and strong industrial implementation

Method used

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  • Method for treating benzopyrene-containing wastewater

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Effect test

Embodiment 1

[0027] The specific implementation is as figure 1 The device flow shown, the waste water that contains 0.3ug / L benzopyrene is sent into the adsorption bed that is packed with adsorbent, wherein said adsorbent is molecular sieve adsorbent, and adsorbent adopts hydrophobic ZSM-5 type molecular sieve; After adsorption The wastewater is sent to the storage tank; part of the wastewater in the storage tank is reused as cooling water, and part of it is discharged. The content of benzopyrene in the treated wastewater was 0.02ug / L.

Embodiment 2

[0029] The specific implementation is as figure 1 In the shown device process, the waste water containing 0.5ug / L benzopyrene is sent into the adsorption bed filled with adsorbent, wherein the adsorbent is molecular sieve adsorbent, and the adsorbent adopts TS-1 type molecular sieve; the waste water after adsorption Send it to the storage tank; part of the wastewater in the storage tank is reused as cooling water, and part of it is discharged. The content of benzopyrene in the treated wastewater was 0.01ug / L.

Embodiment 3

[0031] The specific implementation is as figure 1 The device process shown, the waste water that contains 0.8ug / L benzopyrene is sent into the adsorption bed that is packed with adsorbent, wherein said adsorbent is molecular sieve adsorbent, and adsorbent adopts Ti-MOR molecular sieve; The waste water after adsorption is sent to into the storage tank; part of the wastewater in the storage tank is reused as cooling water, and part of it is discharged. The content of benzopyrene in the treated wastewater was 0.001ug / L.

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Abstract

The invention relates to a method for treating benzopyrene-containing wastewater, and mainly solves the technical problem of excessive emission of benzopyrene in the benzopyrene-containing wastewater.The method is characterized by conveying the benzopyrene-containing wastewater into an adsorption bed filled with an adsorbent, wherein the adsorbent is a molecular sieve adsorbent; conveying purified water into a water storage pond; and recycling part of the purified water as cooling water; and thus, the above technical problem is solved. The treatment method can be applied to the industrial production flow of wastewater treatment.

Description

technical field [0001] The invention relates to a method for treating wastewater containing benzopyrene, in particular to a method for treating benzopyrene in coking wastewater. Background technique [0002] Benzopyrene is an active carcinogen, and its content in air and wastewater is strictly controlled. Because the concentration of benzopyrene in wastewater is low, general biochemical methods cannot be used for treatment. [0003] Chinese patent CN201410312754.0 relates to a method for fast, efficient and selective degradation of trace amounts of benzopyrene in water. After conventional biochemical treatment, the wastewater containing trace amounts of benzopyrene is cut into a water film by the filler in the ozone catalytic oxidation reactor, and then contacts and dissolves with the reverse flow of ozone or ozonated air. Selective degradation of trace amounts of benzopyrene in wastewater under coupled catalytic oxidation. The present invention combines molecular imprint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/72C02F1/78C02F101/32
CPCC02F1/281C02F1/722C02F1/725C02F1/78C02F2101/327
Inventor 马广伟叶青保
Owner 湖北申昙环保新材料有限公司
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