River black and odorous water biological purification treatment device

Abstract

The invention discloses a biological purification treatment device for black and odorous water in a river course, which comprises a river course and a river lift. A closure dam is arranged on the river course between the river lifts, and a biological pool is arranged on the outside of the corresponding river lift of the cut-off dam. The biological pool includes an inlet water The gate, the water outlet gate and the pool body, the water inlet gate and the upstream of the closure dam are connected, the water outlet gate is connected with the downstream of the closure dam; a deflector is arranged behind the water inlet gate; the pool body and the river lift form a closed space, and the pool The body is provided with a vertical partition wall and a horizontal partition wall. The vertical partition wall and the horizontal partition wall divide the pool body into a multi-stage purification pool. There is a biological island in the purification pool. An inclined tube sedimentation tank is installed in the first-stage purification tank, and a mud discharge pipe is arranged at the bottom of the inclined tube sedimentation tank, and the mud discharge pipe communicates with the outside of the biological pool. The device uses the black and odorous water of the river to flow into the biological pool through falling water to realize unpowered oxygenation, and a fixed biological island is set in the biological pool to purify the black and odorous water of the river.

Description

technical field [0001] The invention relates to a sewage purification device, in particular to a biological purification treatment device for black and odorous water in a river course. Background technique [0002] In recent decades, the scope and degree of black and odorous water bodies have been increasing. In most urban river sections across the country, most of the water bodies flowing through prosperous areas are polluted to varying degrees. Once the river water body absorbs organic matter and humus of some animals and plants in excess, the dissolved oxygen in the water will be consumed rapidly. When the dissolved oxygen drops to an excessively low level, a large amount of organic matter will be further decomposed under the action of anaerobic bacteria, producing hydrogen sulfide, amine, ammonia and other odorous and volatile small molecular compounds, thus emitting an odor. At the same time, under anaerobic conditions, insoluble gases such as methane, nitrogen, and hy...

AI Technical Summary

Problems solved by technology

If this kind of black and smelly river water cannot be purified in time, it will not only cause people to feel uncomfortable or even disgusted, but also cause damage to the ecological environment.

Through the search, there is no literature report on the biological purification treatment device for black and odorous water in the river course

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