Ecological pretreatment system for river channel upland water

Abstract

The invention relates to the technical fields of resources and environmental protection, and in particular relates to an ecological pretreatment system for river channel upland water. The system comprises an A area, a B area is arranged on the right side of the A area, a C area is arranged on the right side of the B area, a D area is arranged on the right side of the C area, an E area is arrangedon the right side of the D area, an F area is arranged on the right side of the E area, a G area is arranged on the right side of the F area, an H area is arranged on the right side of the G area, anI area is arranged on the right side of the H area, and a J area is arranged on the right side of the I area. According to the system provided by the invention, net partition is arranged, so that garbage and particulate matter of the upland water are reduced, and a water velocity is slowed down to increase retention time of the upland water; aquatic plants are planted, so that the concentration ofsuspended particulate matter in a water body is reduced, the transparency of the water body is improved, and the water quality is improved; pipelines are laid for aeration, so that an oxygen contentin the water body is increased, competitive pressure of oxygen between the aquatic plants, aquatic animals and microorganisms is reduced, the breeding speed and purification efficiency of the microorganisms are reduced, and reduction of pollution load from the bottom to the top of the water body is achieved.

Description

technical field [0001] The invention relates to the technical field of resources and environment, in particular to an ecological pretreatment system for upstream water of a river course. Background technique [0002] At present, the protection of water resources and the restoration of river ecosystems have attracted the attention of all sectors of society such as ecology, environmental protection, and water conservancy. In the past ten years, river ecological restoration technology has gradually developed, and has been extensively and deeply studied in various countries, and has made remarkable progress. At the same time, a large number of engineering practices of river ecological restoration technology have been carried out at home and abroad. [0003] After the river water ecosystem is established and stabilized, when the system structure is stable and the system effluent water quality meets certain requirements, the daily capacity of the system to accommodate and digest ...

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Problems solved by technology

At the same time, a large number of experimental studies and engineering experience have also shown that a large amount of sediment content in a short period of time, high-nutrient saline water enters the system, and a large amount of water quickly scours the system, not only will the transparency of the restored river water body drop sharply, and the quality of the effluent water cannot be guaranteed. In severe cases, the original water ecosystem will be destroyed or even disappear.

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