Urban sewage treatment system and purification method

Abstract

The invention discloses an urban sewage treatment system and purification method and belongs to the technical field of sewage treatment. The sewage treatment and purification method comprises the steps of collection, physical precipitation, chemical precipitation, anaerobic biological treatment, anoxic biological treatment, aerobic biological treatment, adsorption, disinfection, ultrafiltration membrane filtration and sludge treatment in sequence. According to the method, a physical precipitation method, a chemical precipitation method and a biological purification method are used comprehensively to perform step-by-step classification treatment on different pollutants, the purification efficiency is high, the effluent quality is good, the nitrogen and phosphorus treatment capacity is higher, operation and maintenance are convenient, management is simple, and popularization and use can be realized.

Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, and relates to a sewage treatment system and a purification method, in particular to a sewage treatment system and a purification method suitable for domestic sewage and industrial sewage discharged in cities. Background technique

[0002] With the development of the national economy, the current process of urbanization in my country is accelerating, and the number of cities is increasing rapidly. At present, the urbanization level is close to 40%, but there are some problems that follow, such as environmental problems and traffic problems. my country's urban development, especially the healthy development of cities, such as environmental pollution problems, the current environmental pollution problems in my country's cities are more serious, including air pollution, water pollution and so on. During the rapid development of the city, some unreasonable phenomena appeared in urban planning...

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