Treatment system for community domestic wastewater

Abstract

The invention discloses a treatment system for community domestic wastewater. The treatment system comprises a grating tank, a first water collecting tank, an aeration tank, a primary settling tank, a second settling tank, a disinfecting tank and a clean water tank which are connected with each other in turn through the connecting pipelines. The excrement and urine and the washing water for daily life are separately treated; the water for daily life is grated by a grating plate; the waste residue enters into a waste residue treating tank, is dried and then enters into a crushing chamber for crushing and is transferred as a solid waste into a solid waste treatment plant for treating; the excrement and urine enter into a primary treating tank for treating through a sewage feeding pipeline, the excrement enters into an excrement drying chamber for drying, the dried excrement enters into a fermenting tank and is fermented with the other materials and the fermented mixture enters into a fertilizer collecting chamber for collecting and storing under the effect of a lifting pump, so that the fermented mixture can be used as the fertilizer for farmland and greening or can be sold to the needing people.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a residential sewage treatment system. Background technique [0002] China's per capita water resources are only 1 / 4 of the world's per capita. There are more than 400 water-scarce cities in China, and more than 100 of them have serious water shortage problems. The shortage of water resources and the aggravation of water pollution are currently one of the main factors affecting the sustainable development of our country. In recent years, environmental protection experts all over the world have actively advocated the decentralized treatment method of on-site sewage treatment. Local domestic sewage treatment in residential areas can not only reduce the total amount of sewage discharge, but also realize water circulation and save water resources. Reduce the pressure. [0003] Residential community sewage is the wastewater discharged by residents in their daily life, mainly feces and wa...

AI Technical Summary

Problems solved by technology

[0003] Residential community sewage is the wastewater discharged by residents in their daily life, mainly feces and washing sewage. With the development of society, the number of living quarters continues to increase, and the scale is getting larger and larger. The subsequent increase in domestic sewage has already It has seriously affected people's quality of life, so sewage treatment has become a problem that must be solved at present, but the following problems exist in the sewage of existing living quarters: the sewage discharge volume of existing living quarters is large, if it is discharged into urban sewage pipes, the urban sewage pipes will be enlarged. When the pressure and water flow are large, the pipeline may overflow, causing the surrounding environment to be polluted and the air quality to be reduced; the existing single integrated sewage treatment equipment can no longer meet the treatment requirements of sewage discharge, and the sewage treatment method is single, so a community is designed Domestic sewage treatment system, which separates feces and urine from daily washing water, and uses the dried feces as fertilizer after fermentation

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