River channel purification system for processing rural domestic sewage

Abstract

The invention discloses a river channel purification system for processing rural domestic sewage, belonging to the field of rural sewage processing. The system is characterized in that a processing unit is established by utilizing a waste river channel or a swale near-natural type channel; a plant grid sedimentation unit, an artificial biomimetic material contact oxidation unit, a vertical current artificial wetland unit and a floating plant unit are successively arranged from top to bottom according to the direction of water flow; and the rural domestic sewage is processed successively through the four processing units so as to finally achieve the purpose of improving water quality. The system has the advantages that the removing rates of CODcr, SS, NH3-N, TN and TP of the domestic sewage entering the system respectively reach 77.1%, 84.1%, 70%, 68% and 58.8% through the application of the invention; the effect of reducing the pollution load and improving the water quality is realized; and the system provides the guarantee to the improvement of the water environment quality in a downstream river.

Description

technical field [0001] The invention relates to a rural water pollution control system. Specifically, the present invention is a river purification system for treating domestic sewage in rural areas. Background technique [0002] According to estimates, the rural areas of the country produce about 8 billion tons of domestic sewage every year, and 96% of the villages do not have drainage channels and sewage treatment systems. Domestic sewage is discharged randomly, which seriously pollutes the rural ecological environment and directly threatens the health and well-being of the broad masses of farmers. Rural economic development. [0003] Rural domestic sewage is mainly toilet flushing sewage, laundry, rice washing, vegetable washing, and bathing wastewater. Sewage is mainly domestic waste and human excrement, generally does not contain toxic substances, often contains nitrogen, phosphorus and other nutrients, as well as a large number of bacteria, viruses and parasite eggs....

AI Technical Summary

Problems solved by technology

Utilize abandoned river courses and use plant fences to intercept rural domestic sewage. The sewage is purified through artificial bionic material contact oxidation ponds, vertical flow artificial wetlands and floating plants to strengthen purification, which can solve the pollution problem of rural domestic sewage and effectively remove organic matter and nitrogen in sewage. pollutants such as phosphorus

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