Tree purification domestic sewage treatment system

Abstract

A tree purification domestic sewage treatment system comprises a sediment / biological anaerobic treatment system and a tree / soil comprehensive treatment system. The sediment / biological anaerobic treatment system comprises a first reaction tank, and a sealing cover plate is arranged at the top of the first reaction tank. The tree / soil comprehensive treatment system comprises a second reaction tank, a soil layer and a filter layer are sequentially arranged on the second reaction tank from top to bottom, and trees are planted on the soil layer. The terrain of the first reaction tank is higher than that of the second reaction tank, and the first reaction tank is connected with the second reaction tank. The tree purification domestic sewage treatment system considers willow root systems and soil purification of sewage as a main body and can effectively dispose domestic sewage of private investors in villages in mountainous areas.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a tree purification domestic sewage treatment system. Background technique [0002] With the continuous improvement of people's living standards, the pollution of rural domestic sewage has become more and more prominent. Due to the scattered living in rural areas in hilly and mountainous areas, the small amount of domestic sewage generated and scattered discharge, coupled with the weak environmental protection technology and lack of funds at the current stage, there has not been a relatively practical sewage treatment device and process, resulting in a poor living environment in rural areas. The harmless ecological treatment of rural domestic sewage will be an important part of the urgent construction of new rural construction. [0003] At present, rural domestic sewage is generally discharged into biogas digesters in the traditional way. After the biogas is produced through the ferm...

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Problems solved by technology

[0003] At present, rural domestic sewage is generally discharged into biogas digesters in the traditional way. After the organic crops in the pond complete the fermentation process to produce biogas, the biogas slurry is formed and discharged directly, polluting surface water bodies, and the environmental risk is extremely high.

At this stage, the biofilm method, biofilter, artificial wetland, aerobic pond, land infiltration and the ecological treatment process and mode of comprehensive treatment composed of them are promoted to treat dispersed domestic sewage. However, the investment cost is relatively high for scattered farmers with single houses, and it is not suitable for treating domestic sewage in hilly and mountainous areas with small water volume and irregular discharge.

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