Biological and ecological combined processing device used for processing rural sewage

Abstract

The invention discloses a biological and ecological combined processing device used for processing rural sewage. The biological and ecological combined processing device comprises an anaerobic strengthening preprocessing pool, an aeration tank and an ecological pond, wherein the anaerobic strengthening preprocessing pool, the aeration tank and the ecological pond are separated and sequentially connected in series. The anaerobic strengthening preprocessing pool comprises three communicated preprocessing pool bodies and is communicated with the aeration tank. Combined fillers are arranged in the aeration tank, a three-way flow guide pipe extends to the bottom of the combined fillers and is opposite to an air blasting aeration device, and the aeration tank is communicated with the ecological pond. The ecological pond comprises two sub-ponds communicated in series. Each sub-pond comprises a shallow water wet region and a deep water wet region. The deep water wet region of the upstream sub-pond is provided with a floating bed slant plate sediment combining device, and the deep water wet region of the sub-pond at the tail end is provided with aquatic plants and fishes. A sludge backflow pump device is arranged in the ecological pond, and trees with thick crowns are planted on shores of the periphery. By means of the biological and ecological combined processing device, the traditional technology is optimized, the sewage staying time is prolonged, and the degree of mixing of the sewage and activated sludge is increased; the biological and ecological combined processing device has the advantages of being low in manufacturing cost, low in running cost, efficient, easy to popularize and the like.

Description

technical field [0001] The invention relates to a biological ecological treatment system capable of biochemically treating sewage in the field of environmental protection engineering, in particular to a biological ecological composite treatment device for treating rural sewage (including domestic sewage and aquaculture wastewater, etc.). Background technique [0002] With the continuous development of my country's economy and society and the improvement of people's living standards, rural sewage treatment is becoming more and more urgent and has become a national demand. The Circular on Printing and Distributing the "Key Points of National Natural Ecology and Rural Environmental Protection Work in 2013" (Huanban [2013] No. 5) clearly requires that we speed up the resolution of outstanding environmental problems in rural areas, expand the scope of contiguous improvement of the rural environment, and implement them in all provinces (autonomous regions and municipalities) ) com...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the common problems of current rural sewage treatment projects, such as unstable treatment effect, easy clogging, difficulty in meeting discharge standards, and high cost, and provide a sewage treatment system with simple structure, convenient construction, low maintenance costs and operation management costs, and high treatment efficiency. The bio-ecological composite treatment device for the treatment of rural sewage (including domestic sewage and aquaculture wastewater, etc.)

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