Integrated system and process for treating domestic sewage of villages and towns

Abstract

The invention provides an integrated system and process for treating domestic sewage of villages and towns and belongs to the technical field of environment protection and sewage treatment. Main body parts of the system comprise four space parts including an adjusting tank, an anaerobic pre-reaction tank, a main biochemical reaction tank and an inclined tube sedimentation basin; the four parts are combined and integrated into a process unit by adopting a separation plate; other parts of the system comprise a grid, a disinfection device and a PAP metering device. The adjusting tank is used for adjusting the water quantity of input water and homogenizing the water quality. Modified suspension packing is added into the anaerobic pre-reaction tank and the anti-impact load of the process is enhanced, so that the pre-reaction treatment effect is better. The main biochemical reaction tank has a simple structure and physical regions are not formed in the tank; a water input and water distribution pipe and a disc type micro-pore aeration device are crossly distributed at the bottom of the tank and an overflowing weir is used for discharging the water, so that the treatment efficiency on pollutants is high; and a sludge reflowing system is not arranged and a process is flexible to operate. The inclined tube sedimentation basin adopts a polyvinyl chloride plastic hexagonal inclined pipe, so that the occupied space is small, hydropower staying time is short and the sedimentation efficiency of the pollutants is high.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and sewage treatment, and in particular relates to an integrated system and process for treating domestic sewage in villages and towns, which realizes efficient treatment of sewage. Background technique [0002] With the improvement of my country's village and town economy and residents' living standards, its sewage discharge has gradually increased. However, due to restrictions such as lifestyle, geographical conditions, and technical level, the treatment rate of domestic sewage in villages and towns is still very low, and a large amount of sewage is discharged arbitrarily. The living environment and personal safety have brought serious threats. [0003] At present, most of the sewage treatment processes in villages and towns that are under construction or have been built in my country still use urban sewage treatment processes, without considering the actual economic development ...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of my country's village and town economy and residents' living standards, its sewage discharge has gradually increased. However, due to restrictions such as lifestyle, geographical conditions, and technical level, the treatment rate of domestic sewage in villages and towns is still very low, and a large amount of sewage is discharged arbitrarily. The living environment and personal safety pose a serious threat

[0003] At present, most of the sewage treatment processes of villages and towns that are under construction or have been built in my country follow the urban sewage treatment process, without considering the actual economic development status of villages and towns that cannot be built, operated, or maintained.

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