River sewage treatment device

Abstract

The invention discloses a river sewage treatment device, comprising a drive box, a purifying box and a filter box. The purifying box is arranged on one side of the drive box, the filter box is fixedlyarranged on one side of the purifying box, a backwashing pipe is arranged on the top of a filter barrel, a pure water outlet pipe is arranged on the top of the one side wall of the filter barrel, anda first-stage filter layer, a second-stage filter layer and a third-stage filter layer are arranged inside the filter barrel from top to bottom sequentially; dregs, remained at the bottoms of the first-stage filter layer, the second-stage filter layer and the third-stage filter layer, and cannot enter the filter layers upwards due to different bore diameters; a tap water pipe is connected with the joint of a water pipe, tap water flows into the filter barrel from the backwashing pipe, and the dregs between the filter layers are flushed away, and then discharged from the backwashing pipe at the bottom of the filter barrel, thus, manual work in cleaning is omitted, filtering without toxin or harm is carried out based on physical principle, sewage treatment efficiency of the device is improved, and labor intensity of workers is reduced.

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, the Ye...

AI Technical Summary

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.

Images