Courtyard domestic sewage comprehensive utilization system and sewage utilization method

Abstract

The invention provides a courtyard domestic sewage comprehensive utilization system. The courtyard domestic sewage comprehensive utilization system comprises an integrated treatment box and a treatment pond. The integrated treatment box comprises a box body, and the box body is provided with a drainage pipe, a water inlet connector, an oil stain separation part, a deposition tank and a stain scraping part. A filter screen is arranged at the bottom of the water inlet connector, and the water inlet connector is connected with a domestic sewage pipeline. The oil stain separation part is located between the drainage pipe and the water inlet connector and comprises a mounting frame, and a plurality of inclined oil absorption felts are arranged on the mounting frame at intervals. The deposition tank penetrates through the bottom of the integrated treatment box and is located below the oil absorption felt on the bottommost layer and the water inlet connector. And the stain scraping part is provided with a scraping plate used for scraping attachments on the surfaces of the oil absorption felts. The treatment pond is sequentially provided with a cooling pond, a culture pond and a water storage pond, a cooling pipe set is arranged in the cooling pond, the water inlet end of the cooling pipe set is connected with the drainage pipe, and the water outlet end of the cooling pipe set is communicated with the culture pond. The content of phosphorus and nitrogen in domestic sewage can be reduced, and the application of sewage is increased.

Description

technical field [0001] The invention belongs to the field of domestic sewage treatment in courtyards, and in particular relates to a comprehensive utilization system for domestic sewage in courtyards and a sewage utilization method. Background technique [0002] Detergents are widely used in modern human daily life. Most detergents are artificially synthesized organic compounds, which contain high phosphorus content. At the same time, there is a large amount of nitrogen in domestic sewage. Most of the existing courtyard domestic sewage is directly discharged into rivers. Among them, domestic sewage containing phosphorus and nitrogen flows into rivers and lakes, which will cause trophication of water bodies, resulting in vigorous algae reproduction in water bodies, which will easily lead to deterioration of water quality. On the other hand, because the domestic sewage is directly discharged without effective utilization, the waste of water resources is caused by diversion. ...

AI Technical Summary

Problems solved by technology

[0002] Detergents are widely used in modern human daily life. Most detergents are artificially synthesized organic compounds, which contain high phosphorus content. At the same time, there is a large amount of nitrogen in domestic sewage. Most of the existing courtyard domestic sewage is directly discharged into rivers. In the process, the domestic sewage containing phosphorus and nitrogen flows into rivers and lakes, which will cause the water body to become nutritious, resulting in the vigorous reproduction of algae in the water body, which will easily lead to the deterioration of water quality.

On the other hand, because the domestic sewage is discharged directly, it is not used effectively, and the waste of water resources is caused by diversion.

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