Liquid level adjustable type biological rotating disc system

Abstract

The invention discloses a liquid level adjustable type biological rotating disc system, and belongs to the field of sewage treatment equipment. The system comprises a liquid level adjusting water storage tank, a hydraulic level control valve and a biological rotating disc device, wherein a water outlet of the liquid level adjusting water storage tank is communicated with a water inlet of a reaction tank of the biological rotating disc device through a pipeline and the hydraulic level control valve arranged on the pipeline; the hydraulic level control valve is arranged in the reaction tank of the biological rotating disc device; the position of the liquid level adjusting water storage tank is higher than that of the reaction tank of the biological rotating disc device; and the volume of the liquid level adjusting water storage tank is larger than or equal to that of the reaction tank of the biological rotating disc device. According to the system, the liquid level adjusting water storage tank and the hydraulic control valve are matched to adjust the liquid level of the reaction tank of the biological rotating disc so as to control a submergence ratio of the biological rotating disc, then, the biological rotating disc is adjusted from half submergence to full submergence, and the problem that the biological rotating disc is difficult to start again after shut down is solved.

Description

technical field [0001] The invention relates to the field of sewage treatment and resource utilization equipment, in particular to a liquid-level adjustable biological turntable system specially used for sewage treatment biofilm method. Background technique [0002] my country is in a period of rapid urbanization development, especially the report of the 18th National Congress of the Communist Party of China clearly stated that the promotion of urbanization and urban-rural integration will be the key content of the strategic adjustment of economic structure. According to the upcoming "National Plan for Promoting the Healthy Development of Urbanization (2011-2020)", in the next ten years, my country will increase the urban population by about 400 million, which can stimulate 40 trillion investment. The inevitable result of urbanization is the geographical concentration of production factors and economic activities, leading to a decline in the environmental carrying capacity o...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a biological turntable system with adjustable liquid level, which can adjust the liquid level of the biological turntable pool, and can make the biological turntable change from semi-submerged to fully submerged, without affecting the restart after shutdown, ensuring The water quality of the effluent is stable and up to the standard, thus solving the problem that the existing biological turntable is difficult to restart after a water and power outage. It is not suitable for small towns with unstable power.

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