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Catalyst and treatment method for treating benzpyrene-containing wastewater

A catalyst, benzopyrene technology, applied in chemical instruments and methods, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of difficult treatment, short process, low content of benzopyrene, etc.

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

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Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is that the content of benzopyrene in the waste water is relatively low and difficult to handle. A catalyst for treating waste water containing benzopyrene is provided. The catalyst has the advantages of short flow process and low equipment investment. The advantages of simple and reliable operation, low energy consumption, and strong industrial implementation

Method used

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  • Catalyst and treatment method for treating benzpyrene-containing wastewater

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Effect test

Embodiment 1

[0054] 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

[0056] 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

[0058] 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 catalyst and a treatment method for treating benzpyrene-containing wastewater. The invention mainly aims at solving the technical problem of excessive emission of benzpyrenein the benzpyrene-containing wastewater. For solving the technical problem, the invention adopts the following technical scheme: adopting a novel catalyst for treating the benzpyrene-containing wastewater and feeding the catalyst into an absorption bed filled with an adsorbent, wherein the adsorbent is a molecular sieve adsorbent; feeding the purified water into a reservoir and utilizing one partof the purified water as cooling water for recycling. The treating method can be applied to the industrial production flow of wastewater treatment.

Description

technical field [0001] The invention relates to a catalyst and a treatment method for treating wastewater containing benzopyrene, in particular to a treatment method for 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 ...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/72C02F101/32
CPCC02F1/281C02F1/725C02F2101/327
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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