Sewage handling method and uses thereof

Abstract

The invention relates to an urban community sewage treatment and intermediate water reuse technology, in particular to a domestic sewage treatment method and the application thereof. More particularly, domestic sewage enters a receiving pool through a grizzly screen, after being removed large solid particles, the domestic sewage is pumped into a pretreated micro-oxygen aeration filter chamber by a water pump through a filter for the degradation of organic pollution in the sewage, after degradation, the water automatically flows through the outlet of the micro-oxygen aeration filter chamber to an ozone oxidation sterilizer for ozone oxidation, the oxidized water automatically flows to a storage pool for storing through the outlet of the ozone oxidation sterilizer; the treated resurgent water is used for flushing a urinal and then is directly discharged into a municipal sewage pipe network. The technology of the invention can greatly lower treatment cost, has simple, practical and convenient technological operation, high treatment efficiency, high quality of resurgent water as well as high reuse rate. The technology of the invention can reduce the discharge amount of community sewage by 50% and realize intermediate water recycling, thus reducing water consumption by 30-40%.

Description

technical field [0001] The invention relates to urban community sewage treatment and reclaimed water technology, in particular to a domestic sewage treatment method and its application. Background technique [0002] At present, the per capita domestic water consumption of urban residents in my country is about 150L / d, of which the water consumption for flushing toilets accounts for a large proportion. Generally, the single flushing volume is 6-8L. Based on 8 times a day, the daily toilet water consumption is about 150L / d. 40% of water usage. Using recycled water instead of pure water for toilet flushing can reduce urban water consumption by 40%. [0003] In the 1990s, the underground infiltration system integrating community domestic sewage treatment and reuse played an important role in the reuse of reclaimed water, but this technology is only suitable for communities with low density of residents and large green areas between buildings. big condition. With the populariza...

AI Technical Summary

Problems solved by technology

With the popularization of high-rise residential buildings in cities, the load rate of residents per unit area has doubled, and the green area per capita has dropped significantly. It has become more difficult to adopt underground infiltration treatment processes that occupy a large area.

[0004] The existing community sewage treatment and reclaimed water reuse process generally adopts the method of collecting, treating and reusing all the sewage. The reclaimed water enters the next cycle after being used to flush the toilet, so that the biodegradability of the sewage changes with time. Bad, increased processing difficulty and cost

At the same time, with the improvement of residents' living standards, the per capita water consumption gradually increases, and the COD concentration of sewage shows a downward trend, which has a negative impact on economic and technical indicators.

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