Method for treating residual atrazine in water body by LaFe(1-x)CuxO3

A technology of atrazine and water body, applied in the direction of water/sewage treatment, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problem of low catalytic efficiency, achieve high catalytic efficiency, short reaction time, reduce acid The effect of base adjustment costs
CN109095590AInactive Publication Date: 2018-12-28CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2018-12-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for treating residual atrazine in a water body by LaFe(1-x)CuxO3. The method comprises steps as follows: peroxymonosulfate is added to organic wastewater and mixed uniformly, then a LaFe(1-x)CuxO3 material is added and serves as a heterogeneous catalyst, all components are stirred, and atrazine pollutants are degraded accordingly; concentration of peroxymonosulfatein the organic wastewater is 0.25-1 mmol / L. According to the method, LaFe(1-x)CuxO3 is taken as the heterogeneous catalyst and is subjected to a reaction with to-be-treated atrazine in the coexistenceof both LaFe(1-x)CuxO3 and peroxymonosulfate, Fe(III) / Fe(II) and Cu(II) / Cu(I) in the LaFe(1-x)CuxO3 material are taken as main active components and subjected to a contact reaction with peroxymonosulfate, sulfate radicals with strong oxidizing property are produced, atrazine which is difficult to degrade in the water body is degraded by the sulfate radicals, and therefore, the water body is purified.
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Description

technical field

[0001] The invention belongs to the field of water pollution control, in particular to a LaFe 1-x Cu x o 3 The material is used as a heterogeneous catalyst to activate persulfate to treat residual atrazine in water. Background technique

[0002] Atrazine, also known as atrazine, is a long-term and widely used triazine herbicide. Because atrazine has the characteristics of strong water solubility, stable structure and difficult biodegradation, the soil contaminated by atrazine may pollute the surface and groundwater after being washed by rainwater. Atrazine entering the water environment can cause feminization of male frogs, and it has been included in the list of endocrine disrupting compounds in the United States, the European Union and Japan. In addition, atrazine is also considered a compound with a potential carcinogenic risk to humans. Therefore, it is of great significance to study the reduction mode of atrazine in environmental water.

[0003] Si...

Claims

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