Integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage

Abstract

The invention discloses an integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage. In the system, the integrated device comprises an anaerobic tank, a facultative tank, an aerobic tank and a secondary sedimentation tank. Each two zones are separated by a stainless steel plate and the stainless steel plates are communicated at intervals from top to bottom. The bottom of the anaerobic tank is provided with a water inlet. The top of the sedimentation tank is provided with a water outlet. An aeration head is arranged in the aerobic tank and is connected to an air pump. A guide plate and a mud guard are arranged in the secondary sedimentation tank. A sludge outlet of the secondary sedimentation tank is connected to a sludge flowing direction inlet of the aerobic tank by a sludge reflux pump. An anode carbon felt is arranged in the anaerobic tank. A cathode carbon felt is arranged in the aerobic tank. An anode and a cathode are connected to a storage battery by stainless steel wires. A solar cell panel provides powder for the storage battery. The integrated system greatly improves the original biological treatment technology, reduces an operation cost by natural solar energy and provides a novel rural domestic sewage treatment technology.

Description

technical field [0001] The invention belongs to the intersecting field of rural domestic sewage treatment and microbial electrolytic cells, and in particular relates to an integrated system for intensified treatment of rural domestic sewage by solar-driven microbial electrolytic cells. Background technique [0002] There are more than 600,000 administrative villages and more than 2.5 million natural villages in China, where more than 200 million rural households and nearly 800 million people live. There are 20-30 billion tons of domestic sewage produced in rural areas of the country every year. At present, only 19.4% of domestic sewage in villages and towns has been treated centrally. A large amount of untreated domestic sewage has polluted the surface water environment and various water sources, and has also become the source of disease infection and spread. Rural domestic sewage mainly comes from kitchen cooking, bathing, washing and toilet flushing, and also includes far...

AI Technical Summary

Problems solved by technology

Difficulties in my country's current rural domestic sewage treatment mainly include: large fluctuations in sewage water quality and volume, large differences in sewage discharge and pollutant concentrations in different regions; The construction cost and operation cost of the treatment project are too high; it is greatly affected by the local natural and ecological conditions (temperature, precipitation, wind direction and soil, etc.), which affects the choice of treatment process and technology

Images