Ecologicalization system based on EBR process and sewage treatment method based on surface water III emission

Abstract

The invention discloses an ecologicalization system based on an EBR process and a sewage treatment method based on surface water III emission, and the effluent quality can stably reach the III-class water quality standard of Environmental Quality Standard for Surface Water (GB3838-2002) according to the ecologicalization system based on the EBR process and the sewage treatment method based on surface water III emission. The system and the method are suitable for sewage treatment projects with high standard discharge requirements, the ecologicalization system based on the EBR process comprisesa pretreatment unit, an EBR biochemical treatment unit and a post-treatment unit, and a plant system used for forming up-and-down flow guide of sewage, a root system bionic filler and an aeration device are arranged in the EBR biochemical treatment unit. Therefore, the EBR biochemical treatment unit is used for improving the sewage treatment efficiency, the contact efficiency of organic pollutantsand microorganisms and the utilization rate of dissolved oxygen are improved, and further, the effluent quality can stably reach the III-class water quality standard of Environmental Quality Standardfor Surface Water (GB3838-2002).

Description

Technical field[0001]The invention relates to the field of sewage treatment, in particular to an ecological system based on an EBR process with high standard discharge requirements and a sewage treatment method based on surface water III discharge.Background technique[0002]At present, with the gradual implementation of the "Water Pollution Prevention and Control Action Plan", black and odorous water bodies will be gradually eliminated. However, the problem of eutrophication of water bodies has increasingly become a major water environmental problem that restricts economic and social development and the improvement of residents' living standards. At present, the commonly used process in sewage treatment plants is the treatment process of coarse grid + lifting pump tank + fine grid grid + grit tank + activated sludge tank + secondary sedimentation tank + disinfection tank + metering channel, but this process has high energy consumption, Disadvantages such as high operating costs and t...

AI Technical Summary

Problems solved by technology

This method by extending the process flow improves the decomposition efficiency of organic pollutants to a certain extent, but there are few reports on improving the contact time between organic pollutants and microorganisms and the utilization rate of dissolved oxygen.

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