Anti-load-impact rural sewage treatment equipment and treatment method

Abstract

The invention discloses an anti-load-impact rural sewage treatment device and method, and relates to the technical field of sewage treatment.The sewage treatment device comprises a tank body, and an inner cavity of the tank body is divided into an anaerobic zone, a first aerobic zone, an anoxic zone, a second aerobic zone and a settling zone from one end to the other end of the tank body; aeration devices are arranged in the anaerobic zone, the first aerobic zone, the anoxic zone and the second aerobic zone; the anaerobic zone and the anoxic zone are connected with water inlet pipes; the settling zone is connected with a water outlet pipe; and the nitration liquid reflux device controllably refluxes the mixed liquid in the second aerobic zone to the anoxic zone. According to the arrangement, the aeration device is used for controlling the gas flow supplied to each functional area, so that the functions of the functional areas can be changed, and the functional areas are adjusted in advance according to the water quantity fluctuation and water quality concentration fluctuation of rural sewage so as to adapt to the current situation that the water quality and water quantity of the rural sewage are unstable, and the sewage treatment effect is ensured; and the load impact resistance of the integrated sewage treatment equipment is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, and more specifically, relates to a load-shock resistant rural sewage treatment equipment and treatment method. Background technique [0002] With the continuous improvement of people's living standards, the improvement of rural residents' environment has gradually been paid attention to. However, the arbitrary discharge of domestic sewage in rural areas still exists in some areas. Untreated and utilized feces and various domestic sewage seriously pollute the soil, surface water and groundwater, and pose a threat to the safety of drinking water and domestic water for residents. In order to improve the living environment of rural residents, the state has stepped up efforts to control rural domestic sewage and is gradually promoting the construction of rural sewage treatment facilities. [0003] Due to the influence of geographical location and economic level in rural areas, the sewage ha...

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Problems solved by technology

If large-scale sewage treatment equipment is built in rural areas to meet the treatment load when the sewage volume is large and the water quality concentration is high, it will consume huge costs and occupy a large area, and the equipment cannot be fully utilized when the sewage volume is small; If small-scale sewage treatment equipment is built, it cannot meet the requirements of treatment load when the water volume is large and the water quality concentration is high.

[0004] Therefore, providing a rural sewage treatment equipment capable of resisting load shocks to adapt to the characteristics of unstable water quality and quantity of rural sewage has become an important technical problem to be solved by those skilled in the art

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