Hydraulic movable ecological dam capable of biologically purifying water in rivers and lakes and method for applying hydraulic movable ecological dam

Abstract

The invention discloses a hydraulic movable ecological dam capable of biologically purifying water in rivers and lakes. The hydraulic movable ecological dam comprises a movable dam face, membrane bioreactors, water, gas and material shared inlets and water and gas shared outlets. A rotary shaft which can be fixed onto a bottom plate of a river bed is used as an action fulcrum of the movable dam face, and the movable dam face can be lifted under the control of a hydraulic cylinder and hydraulic pump stations and has river damming and water storing functions; the membrane bioreactors are detachably fixed to a side of a movable dam body; suspended biological fillers are preliminarily arranged in the membrane bioreactors; the water, gas and material shared inlets and the water and gas shared outlets are formed in the membrane bioreactors. The invention further discloses a method for applying the hydraulic movable ecological dam. The hydraulic movable ecological dam and the method have the advantages that microbial catalysts or microbial preparations can be dissolved, can be propagated on a large scale and can be released in polluted water sources, microorganisms in the water can be activated, large-scale propagation of the microorganisms can be promoted, accordingly, the purposes of degrading pollutants in the water, increasing dissolved oxygen, promoting plant photosynthesis and forming food chains can be achieved, the water quality can be quickly improved, the self-cleaning capacity of the water can be enhanced, and biological dredging effects can be realized.

Description

technical field [0001] The invention relates to a hydraulic movable ecological dam capable of biologically purifying river and lake water bodies and a use method thereof, and belongs to the field of river water body treatment technology and environmental protection. Background technique [0002] For rivers with poor water quality and lack of mobility, there are points such as surface runoff non-point source pollution, water sediment and aquatic plant corrosion pollution, and pollution caused by unconventional water sources such as the use of tail water from municipal sewage treatment plants during dry seasons, etc. The pollution factors superimposed on each other by sources, non-point sources, and internal sources will cause the water quality in the river to gradually deteriorate until it becomes black and smelly. It may further aggravate the pollution deterioration process of the impounded water body. [0003] In addition, the existing water treatment technology is mainly ...

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Problems solved by technology

[0002] For rivers with poor water quality and lack of mobility, there are points such as surface runoff non-point source pollution, water sediment and aquatic plant corrosion pollution, and pollution caused by unconventional water sources such as the use of tail water from municipal sewage treatment plants during dry seasons, etc. The pollution factors superimposed on each other by sources, non-point sources, and internal sources will cause the water quality in the river to gradually deteriorate until it becomes black and smelly. May further aggravate the pollution deterioration process of impounded water bodies

[0003] In addition, the existing water treatment technology is mainly limited to the closed high-concentration sewage treatment mode, which is not suitable for application in the treatment of open river and lake water bodies with medium and low pollution levels. The most important inapplicability lies in the water bodies of rivers and lakes. Pollution control requires the restoration of biological diversity and ecological balance in the water body for the purpose of self-purification, and the existing closed-run sewage treatment technology is difficult to meet such requirements

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