Process for chemically treating pollution of drinking water

Abstract

The invention discloses a method for chemically treating drinking water pollution, relating to a water treatment technology which uses an ozone generator, an ozone contact oxidation pond, a flocculating agent adder, a coagulant aid adder, a mechanical stirring chamber, a sedimentation tank and a filtering basin. The treatment process is as follows: organic pollutants in source water are oxidized by fully mixing ozone produced by the ozone generator (2) with the source water in the ozone contact oxidation pond (3); then the pre-oxidized water is added with flocculating agent and coagulant aid and enters flocculating settling and filtration of a water plant to be treated. By improving the prior water treatment process, the method with simple operation process, low cost, convenient equipment installation, and micro-pollution removal is provided.

Description

technical field The invention relates to a water treatment technology, in particular to a method for treating micro-pollution of drinking water sources by chemical pre-oxidation. Background technique With the development of industrialization and the improvement of human material life, the discharge of industrial wastewater and domestic sewage to water bodies continues to increase, especially the massive discharge of untreated sewage, as well as non-point source pollution such as farmland runoff and atmospheric deposition, which has caused the world A wide range of water pollution is increasing day by day, bringing great harm to human health. Micro-pollution of drinking water sources has brought challenges to traditional water treatment processes. In view of the prevalence and harm of micro-pollution of drinking water, the method of pre-oxidation of drinking water to remove micro-pollution has become a topic of great social and economic significance. . The traditional oxid...

AI Technical Summary

Problems solved by technology

Liquid chlorination and chlorine dioxide may lead to the formation of a large number of halogenated organic pollutants that are not easily removed by subsequent conventional processes, and thus may reduce the toxicological safety of the treated water

Although the combined process of potassium permanganate oxidation can effectively reduce the mutagenic activity in water and have a good removal effect on the precursors of water mutations, some of the oxidation products of organic matter after oxidation by potassium permanganate are bases. Replacement mutants, they are not easy to be removed by subsequent conventional processes. After the combined process effluent is chlorinated, these precursors are converted into mutagenic substances, which greatly increases the mutagenic activity of water

The biological oxidation method takes a long time for inoculation, cultivation, acclimatization and maturation. The above methods may bring by-products, or the operating conditions are limited and the investment and operation costs are high.

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