Zero emission district sewage resource treatment apparatus

Abstract

The present invention relates to a zero emission district sewage resource treatment apparatus, wherein quality of water treated by the apparatus can meet reuse requirements. The apparatus comprises a biochemistry treatment system, a physical chemistry treatment system, a disinfection system and a biological deodorization system. The biochemistry treatment system comprises grille, a regulation tank, a lifting pump and an aeration biological filtration tank, wherein the grille, the regulation tank, the lifting pump and the aeration biological filtration tank are sequentially connected through pipelines, a filler is arranged inside the aeration biological filtration tank, and a filler filling height is 1-2 m. The physical chemistry treatment system comprises a middle water tank, a quartz sand filter and an active carbon filter. The disinfection system comprises a disinfection tank and a chlorine dioxide generator, wherein a contact time in the disinfection tank is 2 min. Odor generated by sewage inside the regulation tank is collected, and then is subjected to absorption degradation by the biological deodorization system. According to the apparatus, advantages of the biological treatment process are completely provided, physical chemistry treatment cost is minimized, equipment is simple, operation cost is low, and the apparatus is a practical and feasible technology for district sewage treatment and reuse.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and resource utilization, and in particular relates to a zero-discharge sewage resource treatment device in residential quarters. The treated water quality can meet different reuse requirements. Background technique [0002] my country's per capita water resources are less than 2200m 3 , only 1 / 4 of the world average, 20% of the United States, and 15% of Russia. The country suffers from an annual water shortage of nearly 40 billion m 3 , more than 400 of the more than 660 cities across the country are facing water shortage problems, and the annual water shortage in cities and industries is nearly 6 billion m 3 , Agriculture reduces grain production by more than 28 billion kilograms every year due to drought. With the rapid advancement of China's industrialization and urbanization process, the phenomenon of water shortage in cities has become more serious. At the same time, with the ra...

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Problems solved by technology

[0006] The present invention aims at the defects and insufficiencies of the commonly used technologies for reclaimed water treatment in residential quarters, as well as the sharp increase in urban water consumption, the reclaimed water reuse amount and the sharp increase in reuse purposes, etc., and integrates the advantages of the activated sludge method and the biofilm method, and proposes a Zero-discharge community sewage resource treatment technology, and on the basis of this technology, develop and invent a zero-discharge community sewage resource treatment device, realize biochemical-physicochemical joint regulation and optimization combination through load matching, and effectively and stably treat community sewage process and reuse

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