Mountainous area unpowered algae biological rotating disc sewage treatment system

Abstract

The invention relates to a mountainous area unpowered algae biological rotating disc sewage treatment system. The system comprises a grating adjusting tank, an algae biological rotating disc and an inclined plate sedimentation tank; the system is constructed in a stepped mode from high to low according to mountainous terrain, the algae biological rotating disc comprises a waterwheel and biologicalrotating discs, and the waterwheel is arranged in the middle of the algae biological rotating disc, the biological rotating discs are distributed on the two sides of the waterwheel, and the waterwheel is connected with the biological rotating discs through bearings; a water outlet pipe is arranged above the waterwheel, the waterwheel is impacted by water flow, and the waterwheel drives the biological rotating discs to rotate through the bearings; green algae are inoculated in the biological rotating discs, and a bacteria-algae symbiotic system is formed on the biological rotating discs. The sewage treatment system has the beneficial effects of simple structure, investment saving, good treatment effect, small occupied area, no need of electric power, no power, no operation cost, no need ofspecially-assigned person management and the like, and is quite suitable for meeting the use requirements of domestic sewage treatment in rural areas and villages and towns in remote mountainous areas which cannot ensure electric power supply and have relatively backward economic conditions.

Description

technical field [0001] The invention relates to an unpowered sewage treatment system, in particular to an unpowered algae biological turntable sewage treatment system in mountainous areas. Background technique [0002] With the development of rural economy and the improvement of farmers' living standards, the pace of modernization of rural life has also been greatly accelerated. The water consumption of rural residents has increased dramatically, and a large amount of domestic sewage has been produced. Rural domestic sewage has become an important cause of rural environmental pollution. It is necessary to vigorously promote the practical technology of rural domestic sewage treatment to improve the rural environment. The area of ​​mountainous and hilly areas in China accounts for more than 2 / 3 of the total land area of ​​the country. The mountainous terrain is rugged. If urban sewage treatment plants are used to build sewage treatment facilities, it will inevitably lead to d...

AI Technical Summary

Problems solved by technology

The area of ​​mountainous and hilly areas in China accounts for more than 2 / 3 of the total land area of ​​the country. The mountainous terrain is rugged. If urban sewage treatment plants are used to build sewage treatment facilities, it will inevitably lead to difficulty in site selection and high infrastructure costs; Due to the late start of sewage treatment in rural areas, most of the sewage is collected in open ditches or underground ditches and then discharged directly, resulting in excessive organic matter, nitrogen, phosphorus and other indicators in nearby rivers or groundwater, resulting in serious eutrophication of water bodies

Among the village and town sewage treatment stations that have been built at present, most of them cannot operate normally due to improper operation and maintenance or high operation and maintenance costs

Images