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Method for treating bisphenol A wastewater based catalyst using Cu<2+> as active component

A technology of active components and catalysts, which is applied in the field of bisphenol A wastewater treatment by catalysts, can solve the problems of poor centrifugal separation effect, yellowish color of effluent, time-consuming and other problems, and achieve high degradation efficiency, promote development, and low cost Effect

Pending Publication Date: 2019-08-06
CHONGQING TECH & BUSINESS UNIV
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Problems solved by technology

In the prior art, the treatment efficiency of the Fenton method is relatively high, but for bisphenol A, the use of the Fenton method has the following technical difficulties: the removal rate of bisphenol A is low, only about 50%; there will be colloidal flocs in the reaction process Fe(OH) 3 Formation, poor centrifugation effect, natural sedimentation takes about 3 days, time-consuming, low efficiency; the reaction process needs to adjust the pH value of the reaction solution under the condition of 2-4; the color of the effluent is yellowish

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  • Method for treating bisphenol A wastewater based catalyst using Cu&lt;2+&gt; as active component
  • Method for treating bisphenol A wastewater based catalyst using Cu&lt;2+&gt; as active component
  • Method for treating bisphenol A wastewater based catalyst using Cu&lt;2+&gt; as active component

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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] In the physical treatment of bisphenol A, such as activated carbon adsorption, although adsorption can quickly and effectively remove bisphenol A, the adsorption method does not remove bisphenol A through degradation, but removes bisphenol A from the water phase It is mainly used as an emergency treatment method, and the adsorption method, such as activated carbon, is generally expensive and difficult to deal with in the regeneration system.

[0032] Biological treatment of bisphenol A wastewater has broad prospects, but it also has great disadvantages, such as high requirements for bacteria, long time for sludge domest...

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Abstract

The invention belongs to the technical field of water pollution treatment, and discloses a method for treating bisphenol A wastewater based on a catalyst using Cu<2+> as an active component. The bestcatalyst for catalytic degradation of bisphenol A is screened by a homogeneous CWPO reaction system, and the CWPO performances of bisphenol A under different reaction conditions are analyzed; and theobtained optimal reaction conditions for the removal of bisphenol A are as follows: the initial concentration of simulated bisphenol A wastewater is 152 mg / L, the use amount of the CuSO4 catalyst is 1g / L, the use amount of H2O2 is 78 mmol / L, and the reaction is carried out at 75 DEG C for 65 min. The method makes the removal rate of the bisphenol A reach 95.4%, achieves high-efficiency catalyticoxidation degradation of the simulated bisphenol A wastewater, does not need to adjust the pH value of a reaction solution in the reaction process, has the advantages of simplicity in operation, fastreaction and low cost, and provides a new way for pretreatment or advanced treatment of toxic non-biodegradable organic wastewater containing benzene rings.

Description

technical field [0001] The invention belongs to the technical field of water pollution treatment, in particular to a Cu-based 2+ A method for treating bisphenol A wastewater with a catalyst that is an active component. Background technique [0002] Bisphenol A is one of the most widely used industrial compounds in the world. It is mainly used as an intermediate of industrial compounds in industry, and is an important raw material for the manufacture of various resins such as epoxy resin, polycarbonate and modified phenolic resin, and is also used for the preparation of antioxidants, stabilizers, plasticizers, cans Coatings, thermal paper, tooth fillers, paints and pesticides, etc., which are mainly produced through the production and processing of raw materials containing bisphenol A, incomplete wastewater treatment, landfill leachate and leaching of waste containing bisphenol A components migrate into the environment. Bisphenol A has been detected in lakes, rivers, drink...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F101/34
CPCC02F1/722C02F1/725C02F2101/345C02F2305/026
Inventor 焦昭杰陈凌张贤明梁新元高旭
Owner CHONGQING TECH & BUSINESS UNIV
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