Flow guide type water-permeable ecological filter dam

Abstract

The invention provides a flow guide type water-permeable ecological filter dam, and aims to solve the problems that a power source is single, and water bloom and pollutant deposition are easy to occurin a closed slow-flow (static) water body. The flow guide type water-permeable ecological filter dam comprises an ecological filter dam body arranged on a slow-flow water body, wherein a flow guide channel is formed in the ecological filter dam body, and penetrates through the ecological filter dam body in the water flow direction, and the water inlet of the flow guide channel is lower than the dam crest of the ecological filter dam body. Compared with an ecological filter dam in the prior art, the flow guide type water-permeable ecological filter dam of the invention has the following characteristics that the flow guide channel is additionally arranged on the dam body, a height difference exists between the upstream side and the downstream side of the dam body, and penetrating through the dam body does not only depend permeation after the flow guide channel is formed, so that the hydrodynamic force is remarkably improved, and the environmental problems of water bloom, pollutant deposition and the like caused by poor liquidity and poor hydrodynamic conditions in closed slow flow water areas such as landscape lakes and the like are effectively solved.

Description

technical field [0001] The invention relates to the field of water body purification treatment, in particular to a diversion type permeable ecological filter dam suitable for non-flooding rivers or lakes. Background technique [0002] The permeable ecological filter dam uses gravel and crushed stones to artificially build the dam body in the polluted river. The ecological filter dam stores water upstream by controlling the seepage velocity of the water, so that the water level rises to a certain level. Due to the increase of the hydraulic retention time, the pollutants in the water can be reduced under the action of physical settlement, natural degradation, and absorption by aquatic organisms, thereby purifying the water quality. Landscape lakes are mostly water bodies with a single power source and closed slow-flow (stationary) water bodies. Such water bodies are prone to lead to dead water areas and slow-flow areas. The waters in this area are faced with water environmenta...

AI Technical Summary

Problems solved by technology

Once the closed slow-flow (stationary) water body is polluted, it is difficult to repair itself due to its poor self-purification ability, and it is easy to cause black and odor outbreaks

And although the permeable ecological filter dam in the prior art can allow water to permeate through, it makes the upstream water body flow more slowly, which may weaken the water purification benefits brought by the permeable ecological filter dam to a certain extent, so the existing technology The permeable ecological filter dams in the paper are not completely suitable for closed slow-flow (stationary) water bodies, and it is necessary to make further improvements to the existing permeable ecological filter dams

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