Water treatment method of zero-valent iron-copper bi-metal activated persulfate

Abstract

The invention discloses a water treatment method of zero-valent iron-copper bi-metal activated persulfate. The water treatment method specifically comprises the steps that bi-metals including zero-valent iron and copper are added into water containing micro-pollutants, then persulfate is added, full mixing is performed, the bi-metals including the zero-valent iron and the copper are utilized to activate the persulfate so as to remove the micro-pollutants in the water. The water treatment method utilizes the bi-metals including the zero-valent iron and the copper to efficiently activate the persulfate so as to produce free sulfate radicals having strong oxidizing property, can achieve the purpose of quickly and thoroughly removing micro-pollutants, including multiple types of poisonous and harmful micro-pollutants in water, such as polychlorinated biphenyl, brominated flame retardants, drugs and personal care products (PPCPs) and algal toxin, and has the advantages of high activation efficiency, high oxidation and degradation efficiency of pollutants, wide pH using range, convenient operation and the like. The water treatment method can be applied to underground water remediation, treatment of industrial water (including electroplating wastewater, hospital wastewater, printing and dyeing wastewater and the like), drinking water treatment, wastewater treatment and the like.

Description

technical field [0001] The invention belongs to the technical field of water body pollution treatment. More specifically, it relates to a water treatment method of zero-valent iron-copper bimetallic activated persulfate. Background technique [0002] In recent years, with the rapid development of industry and agriculture and the continuous improvement of people's living standards, more than 90% of my country's water bodies have been seriously polluted. A large number of toxic and harmful organic pollutants, such as: pharmaceuticals and personal care products (PPCPs), persistent organic pollutants (POPs), pesticides, petroleum organic pollutants, chemical products and other types of man-made chemicals are discharged into natural water bodies; At the same time, algal or bacterial growth in water bodies causes problems of algal toxins, smell, and endotoxins. [0003] The above-mentioned toxic and harmful pollutants pose a huge threat to the living environment of aquatic organ...

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Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the defects and deficiencies of the above-mentioned existing water pollution treatment technology, and provide a technology for effectively, economically and feasiblely removing micro-pollutants in water, that is, to use zero-valent iron-copper bimetallic activated persulfuric acid Salt removal technology for micro-pollutants in water. This technology can quickly remove pharmaceuticals and personal care products (PPCPs), algae toxins, pesticides, petroleum organic pollutants and various refractory organic substances in water. It can be applied to drinking water treatment , sewage advanced treatment, regenerated water treatment, industrial water treatment and groundwater treatment, etc., can well solve the problem of various toxic and harmful micro-pollutants that are often detected in drinking water, sewage, industrial wastewater, surface water, and groundwater.

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