Method used for processing city domestic sewage
A technology for urban domestic sewage and domestic sewage, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as poor sewage discharge, urban waterlogging, and environmental protection. Achieve the effect of alleviating the danger of urban waterlogging, reducing demand and saving funds
Inactive Publication Date: 2014-01-15
周梅英
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Problems solved by technology
This approach is not environmentally friendly, and when the river floods and the water level rises, the sewage will not be discharged smoothly, and it will also cause urban waterlogging
Method used
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[0014] Such as figure 1 As shown, the domestic sewage in the urban area is collected in the domestic sewage treatment station through independent pipelines. Set up multiple sedimentation (septic tank) tanks and purification tanks in the suburbs. Use pipelines to transport urban domestic sewage from domestic sewage treatment stations to these sedimentation tanks and purification tanks. After multi-stage sedimentation and purification, the water is treated separately (for example, introduced into a large-scale water storage and distribution network). The feces obtained by precipitation can be used as fertilizer for agricultural planting.
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The invention discloses a method used for processing city domestic sewage. According to the method, when a new city zone is built, drainage pipelines for city domestic sewage and drainage pipelines for water of productive use are arranged separately; agriculture development is performed around the city; city domestic sewage is processed, and is introduced into farmland or river network instead of being discharged into rivers, and is taken as fertilizers for planting. Domestic sewage in urban areas is collected at domestic sewage treatment stations via independent pipelines; a plurality of sedimentation basins (septic tanks) and clarifier tanks are built in suburb areas; city domestic sewage is delivered from the domestic sewage treatment stations to the sedimentation basins and clarifier tanks; water after multiple-stage sedimentation treatment and purification is subjected to further treatment (such as being delivered into large-scaled storage water distribution networks); night soil obtained after sedimentation treatment can be used as fertilizers for planting. The method is capable of resolving a plurality of problems, such as environmental protection, waterlogging, fertilizer and soil improvement, at the same time.
Description
technical field [0001] The invention relates to the fields of environmental protection, urban planning and sewage treatment. Background technique [0002] The main body of urban domestic sewage is human sewage (big and urine of the human body). The current conventional treatment method is to directly mix this part of sewage with production sewage, and discharge it into rivers through unified sewer pipes. This approach is not environmentally friendly, and when the river floods and the water level rises, the sewage is not discharged smoothly, and it will also cause urban waterlogging. Contents of the invention [0003] The present invention proposes: the main body of domestic sewage is human body sewage (big and urine of human body). Compared with production sewage, domestic sewage is a relatively clean and easy-to-treat water source. Therefore, when building a new city, the drainage pipes for urban domestic water and the drainage pipes for production water should be arra...
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IPC IPC(8): C02F9/02C02F9/14
Inventor 周梅英
Owner 周梅英