River sewage draining exit water quality filtering device

Abstract

The invention discloses a river sewage draining exit water quality filtering device which comprises a sewage draining square groove formed in a river sewage draining exit, and a sewage discharge portis formed in the front end of the sewage draining square groove; a rotating wheel is arranged at the upper opening of the sewage discharge port; screen cleaning scrapers are annularly and uniformly arranged on the rotating wheel at intervals; the outer edges of the screen cleaning scraping plates are matched with the sewage discharge port; a sieve plate used for filtering large-particle impuritiesis arranged on one side of the rotating wheel and located below the screen cleaning scraping plates, and a blow-off pipeline used for collecting and discharging the large-particle impurities is arranged on one side of the sieve plate; the device can realize automatic multi-stage filtration of the water quality of the river sewage draining exit, and is efficient and reliable in filtration and purification; meanwhile, hydraulic power of the sewage draining exit is converted into multi-stage filtering power, and lasting automatic filtering is achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, in particular to a water quality filtering device for river sewage outlets. Background technique [0002] The pollution of rivers in my country 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 According to the bulletin, in 2003, the water quality of more than 61.9% of the 407 key monitoring sections in th...

AI Technical Summary

Problems solved by technology

[0003] In recent years, some rivers and lakes have been troubled by environmental pollution, and the eutrophication of water bodies has become increasingly serious, making the existing water resource supply and demand contradiction more prominent. Mud dredging, aeration and re-oxygenation, etc., but some of the current treatment equipment is expensive to use and the treatment is not thorough; due to the gradual accumulation of sediment or domestic garbage, the sewage outlet is gradually blocked, and further pollutes the subsequent sewage, resulting in sewage While the treatment cost increases, the efficiency of sewage treatment is also reduced

Images