Resource recovery type black and grey water treatment system

Through the quality treatment of resource recycling black grey water treatment system, the problems of high operation and maintenance costs and low resource utilization rates of rural black grey water treatment systems are solved, and the resource utilization of gray water and efficient treatment of black water are realized, which improves the utilization rate of water resources.

CN120441126AActive Publication Date: 2025-08-08ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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Patent Information

Application Number
CN202510628213.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2025-08-08
Estimated Expiration
2045-05-15

AI Technical Summary

Technical Problem

Rural black grey water treatment systems have problems such as high construction and operation costs, unstable operation, poor water effluent effect and low resource utilization. In particular, gray water has not been effectively treated, which affects the harmless effect and resource utilization of black water.

Method used

The resource recovery black grey water treatment system is adopted, including an oil separator, a filtration device, a grey water treatment unit, a three-cell septic tank and an ecological percolation device. The ash water is oil separated, coagulated, filtered and decolorized, and UV disinfected through mass separation treatment and is used as toilet flushing water. The black water is pretreated in the three-cell septic tank and mixed with the ash water, and then entered the ecological percolation device for purification.

Benefits of technology

The resource utilization of gray water has been achieved, the concentration of black water pollutants has been reduced, the treatment efficiency has been improved, water resources has been saved, the problem of joint treatment of toilet pollutants in farmers' households has been solved, and the utilization rate of water resources has been improved.

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Abstract

The invention provides a resource recovery type black and grey water treatment system. The system comprises an oil separation device, a filtering device, a grey water treatment unit, a three-grid septic tank and an ecological percolation device, wherein the oil separation device comprises a kitchen grey water inlet, a grease outlet and an oil separation grey water outlet; the filtering device comprises a bathing and clothes washing grey water inlet, an impurity outlet and a filtered grey water outlet; the grey water treatment unit comprises a coagulative precipitation device, a filtering and decolorizing device, a UV disinfection device and a storage device; the coagulative precipitation device comprises an oil-separated grey water inlet, a filtered grey water inlet, a first water outlet and a second water outlet; the filtering and decoloring device comprises a water inlet and a filtered and decolored water outlet; the UV disinfection device comprises a filtered and decolored water inlet and a disinfected water outlet; the storage device comprises a disinfected water inlet and a water outlet; the three-grid septic tank comprises a first grid, a second grid and a third grid which are connected, the first grid comprises a toilet flushing black water inlet, and the third grid comprises a mixed water outlet; the ecological percolation device comprises a mixed water inlet and a harmless water outlet.
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