Rural domestic sewage treatment device for region with relatively large topographic relief

Abstract

The invention discloses a rural domestic sewage treatment device for a region with relatively large topographic relief. The rural domestic sewage treatment device comprises a baffled anoxic and anaerobic reaction ditch, a water-falling oxygenation ditch, an aerobic reaction ditch and a reinforcing wetland, wherein the baffled anoxic and anaerobic reaction ditch comprises a facultative section, an anoxic section and an anaerobic section which are partitioned through water-retaining walls and baffle walls; the water-falling oxygenation ditch is positioned at the downstream of the baffled anoxic and anaerobic reaction ditch; the water-falling oxygenation ditch comprises a water-falling platform, a water-receiving pond and an overflowing weir; the aerobic reaction ditch is positioned in the downstream of the water-falling oxygenation ditch, is communicated with the overflowing weir, and is constructed according to the natural shape of the ditch; the aerobic reaction ditch is provided with a suspended filler and an overflowing wall; the reinforcing wetland adopts a trapezoidal pond-shaped structure, and sequentially comprises an impermeable layer, a gravel cushion layer, a filtering material layer and a soil layer from bottom to top.

Description

technical field [0001] The invention relates to the technical field of sewage treatment devices, in particular to a rural domestic sewage treatment device in areas with large terrain fluctuations. Background technique [0002] The main sources of rural domestic sewage are kitchen, bathing, washing and toilet flushing, etc. Most of the village sewage has not been effectively treated and is directly discharged into rural channels and ponds, and finally enters receiving water bodies such as lakes and rivers. Rural domestic sewage The content of nutrients such as COD, nitrogen, and phosphorus in the water is high, which is an important factor causing eutrophication of water bodies. The content of toxic and harmful substances such as heavy metals is low, but it contains a large amount of nutrients, bacteria, and viruses, which can easily cause surface water and groundwater pollution. , aggravating the eutrophication of the water environment. It is imminent to collect and treat r...

AI Technical Summary

Problems solved by technology

The treatment rate of rural sewage is at a relatively low level, the sewage treatment technology and management level are still relatively backward, and there is a lack of professional sewage treatment personnel, often the built sewage treatment facilities cannot perform their functions normally

The reason is that the treatment technology and facilities that are really suitable for rural sewage have not been selected. Therefore, it is necessary to develop sewage treatment technology and equipment suitable for the specific conditions of rural areas according to the characteristics and sources of rural sewage.

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