Buried sewage treatment system and sewage treatment method

Abstract

The invention relates to the field of sewage treatment, in particular to a buried sewage treatment system. The buried sewage treatment system comprises a regulating tank, a biochemical tank and an air compressor, wherein a first air lift pump is arranged in the regulating tank; a feeding opening of the first air lift pump is near the bottom of the regulating tank; a discharging opening of the first air lift pump is communicated with the biochemical tank; the first air lift pump is connected with the air compressor through a first pipeline; a second air lift pump, a water outlet air lift pump and an aerator are arranged in the biochemical tank; a discharging opening of the second air lift pump is communicated with the regulating tank; the second air lift pump is connected with the air compressor through a second pipeline; a water outlet of the water outlet air lift pump is communicated with the outside of the biochemical tank; the aerator is connected with the air compressor through a fourth pipeline. The invention also provides a sewage treatment method. The buried sewage treatment system and the sewage treatment method have the advantages that sewage can be fast and stably purified; meanwhile, power equipment is little; the system can be conveniently installed and maintained; the long-time and stable operation can be realized.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an underground sewage treatment system and a sewage treatment method. Background technique [0002] Water is an important resource, and its uses generally include the following aspects: domestic water, industrial water, agricultural water, etc. In general, the three types of water that are closely related to human production and life cannot use ocean water on a large scale, but can only use fresh water. However, the fresh water resources in the water environment are very few, accounting for only 2.53% of the total water body, and the fresh water resources that can be directly used by human beings only account for 0.22% of the total fresh water resources. Coupled with increasingly serious environmental pollution, there is an increasing shortage of high-quality fresh water that can be directly taken, which is difficult to meet the needs of people's life and industrial and agricultu...

AI Technical Summary

Problems solved by technology

[0004] However, SBR technology itself has high requirements for automation control and equipment maintenance, and it is difficult and cumbersome to use, and the maintenance cost is high.

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