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Suihua University Graduation Paper

City Wastewater Reuse of Suihua£¬Beilin

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Student name Yin Jian Student number 201050797 Major Resource environment and urban planning Supervising teacher Jiang Yongqi Lecturer

Suihua University

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Abstract

Suihua is an important agriculture city with mass production of crops in China. Using biological filter sewage treatment system, we can be effective in treating domestic sewage. On the one hand , it can reduce the content of sewage treatment in the BOD, COD, SS and certain pathogens and other harmful substances, to achieve discharge standards, sewage pollution prevention land, crops, further protect environment and human health. On the other hand, the use of standard of living sewage, realize multilevel utilization of water resources, indirect reduce sewage discharge, so as to achieve the purpose of saving water resource.

Key words: biological aerated filter; domestic sewage; emission standard; multilevel utilization