A river sewage treatment device

Abstract

The invention discloses a river sewage treatment device, which comprises three parts: a drive box, a purification box and a filter box. One side of the drive box is provided with a purification box. The top of the bucket is provided with a backwash pipe, and the top of the side wall on one side of the filter bucket is provided with a clean water outlet pipe. The inside of the filter bucket is provided with a first-stage filter layer, a second-stage filter layer, and a third-stage filter layer from bottom to top. layer, the first filter layer, the second filter layer and the bottom of the third filter layer will have sundries. Due to the difference in pore size, the sundries cannot pass through the filter layer upwards. The washing pipe enters the filter barrel, washes away the sundries between the filter layers, and discharges them from the backwash sewage pipe at the bottom of the filter barrel, eliminating the trouble of manual cleaning, filtering according to physical principles, non-toxic and harmless, and improving the sewage of the equipment Improve processing efficiency and reduce labor intensity of workers.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a river sewage treatment device. Background technique [0002] The pollution of rivers in China is dominated by organic pollution, and the main pollutants are ammonia nitrogen, biochemical oxygen demand, permanganate index, and volatile phenols; lakes are characterized by eutrophication, and the main pollution indicators are total phosphorus, total nitrogen, and chemical demand. Oxygen content and permanganate index, etc.; the main pollution indicators in coastal waters are inorganic nitrogen, active phosphate and heavy metals; these factors constitute the characteristics of water environment problems such as wide-ranging influence, serious harm, and difficulty in governance; according to China's environmental conditions Bulletin, in 2003, the water quality of more than 61.9% of the 407 key monitoring sections in the seven major water systems of the Yangtze River, Yellow...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a river sewage treatment device to solve the problem of environmental pollution in some rivers and lakes in recent years, and the eutrophication of water bodies is becoming more and more serious, which makes the existing contradiction between supply and demand of water resources more prominent. At present, The methods of river sewage purification mainly intercept and divert sewage, divert water to flush sewage, dredge sediment, and aerate and re-oxygenate, etc. However, some current treatment equipment is expensive to use, the treatment is not thorough, and the treated water cannot be used immediately.

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