Method for treating (large) river black odoriferous water discharged from rainwater pumping station in rainy season

Abstract

The invention discloses a method for treating (large) river black odoriferous water discharged from a rainwater pumping station in a rainy season and relates to a technology for controlling substances making a water body black and odorous, in particular to control of bottom sludge settling in a rainwater pipeline or a rainwater well and causing the black and odorous situation. The method is suitable for treatment of black odoriferous water of rainwater pumping stations, converged sewage pumping stations and rivers before the water is discharged to (large) rivers. The method comprises the treating steps of rainwater pipeline bottom sludge scouring, rainwater pipeline bottom sludge disturbance improvement, mud and sand residue separation and bacteriostasis and black odoriferous reduction based on slow release of reagents. The treating method is simple in process, the occupied area is small, the investment is saved, the environmental benefits are high, operating management is convenient, the bottom sludge settling problem of the upstream pipe section of the rainwater pumping station, the blockage and winding problems of a sewage intercepting pump in the rainwater pumping station and the abrasion, blockage and settlement problems of a downstream pipe net can be also solved except that the black odoriferous problem of the river water discharged in the rainy season can be solved, and the inflow water carbon nitrogen ratio of a sewage plant relevant to sewage permeation of the rainwater pumping station can be also improved.

Description

technical field [0001] The treatment method of black and odorous water released into the river (river) by rainwater pumping station in rainy season, involves the technology of controlling the substances that cause black and odorous water body, especially the treatment of black and odorous water caused by sediment deposited in rainwater pipes or rainwater wells, and is suitable for rainwater pumping stations , confluent sewage pumping station and river stream regulation before releasing the black and smelly water to the river (river). Background technique [0002] With the gradual improvement of the country's environmental requirements, the river regulation has been intensified in recent years, and the black and smelly phenomenon of the river has also attracted extensive attention. Through the study of the pollutant sources of black and odorous rivers, it is found that the black and odorous water discharged from the rainwater pumping station to the river (river) during the ra...

AI Technical Summary

Problems solved by technology

Because the removal of pollutants in the pumping station is hindered by various restrictions such as the site, it cannot be complete...

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