Drinking water disinfecting and purifying plant used for centralized water supply in residential area

Abstract

The invention provides a drinking water disinfecting and purifying plant used for centralized water supply in a residential area, which belongs to the field of advanced oxidation technology application and drinking water safety guarantee technology. On the basis of the principles of advanced oxidation technology, the plant employs the negative pressure suction effect and the hydrodynamic cavitation effect of a hydrodynamic cavitation gas-liquid mixing and dissolving device for high-efficiency mixing and dissolving of high-concentration active oxygen particles generated in a non-equilibrium plasma reactor and to-be-treated water in the hydrodynamic cavitation gas-liquid mixing and dissolving device so as to reinforce a chain reaction where hydroxyl radicals form and to promote generation of high-concentration active oxygen particles like the hydroxyl radicals, and employs a microporous aerator to reinforce the effect of uniform mixing and dissolving of the to-be-treated water and the high-concentration active oxygen particles like the hydroxyl radicals; thus, regular disinfection, sterilization and purification of centralizedly supplied drinking water in the residential area are realized in virtue of the advanced oxidation technology, excellent water quality of effluent is guaranteed, tap water from municipal pipelines is highly efficiently and rapidly converted into direct drinking water, safety of centralizedly supplied drinking water in the residential area is ensured, and the quality of domestic drinking water in residential areas in cities and towns is improved.

Description

technical field [0001] The invention belongs to the technical field of advanced oxidation technology application and drinking water safety assurance, and relates to a disinfection and purification system for drinking water in urban residential areas, in particular to a drinking water disinfection and purification device for centralized water supply in residential areas. Background technique [0002] At present, the drinking water supply method for urban residents in my country is mainly centralized water supply. For high-rise buildings, this water supply method has the disadvantages of insufficient water supply and water pressure. Therefore, users in high-rise buildings must use secondary water supply. Water supply is a water supply method that stores, pressurizes and disinfects or further treats water from drinking water supply pipelines and then delivers it to users. Usually, secondary water supply facilities include water pipelines, water storage tanks and water pumps. How...

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Problems solved by technology

[0006] Aiming at the problem of secondary water supply pollution in residential areas under the existing conditions, the present invention provides a drinking water disinfection and purification device for centralized water supply in residential areas. The chemical effect can make the active oxygen particles produced by the non-equilibrium plasma reactor fully miscible with water, and strengthen the chain reaction process of active oxygen particles forming hydroxyl radicals in water. Microporous aerators are used to enhance the high concentration of hydroxyl radicals The uniform miscibility effect of active oxygen particles and the water to be treated can greatly improve the disinfection, sterilization and purification effect of drinking water. The post-installed residual oxidant digester and security filter ensure the quality of the effluent water, and ensure that the effluent water quality index meets the national "Drinking Water Hygienic Standard (GB5749-2006)" and "Drinking Water Quality Standard (CJ94-2005)" requirements

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