Urban sewage treatment system
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ι»ε
- Publication Date
- 2017-01-04
- Estimated Expiration
- Not applicable Β· inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to the field of sewage treatment, in particular to an urban sewage treatment system. Background technique
[0002] With the growth of urban population in our country, the expansion of residential areas and the further concentration of population, domestic water consumption has also increased, resulting in more and more sewage discharged from cities. Urban domestic sewage is mainly composed of kitchen washing, toilet flushing, bathing, laundry water, etc. The organic nitrogen and ammonia nitrogen contained in the sewage mainly come from the waste of protein metabolism in human food, such as feces. At present, urban domestic sewage has become the main pollution source of urban water in my country, and the existing sewage treatment facilities are unable to withstand the increasing amount of sewage treatment, resulting in a large amount of domestic sewage being discharged into rivers and lakes without purification, polluting natural w...