Method for governing black and odorous water body and sediment

Abstract

The invention relates to a method for governing black and odorous water body and sediment. The method comprises the following four steps of performing first-stage treatment: enabling an aeration oxygen filling device to be arranged in a first-stage treatment unit; performing second-stage treatment: enabling a filling device to be arranged at the bottom of a second-stage treatment unit, enabling a current generator to be arranged at the upper part of the filling device, and adding microorganisms into the water body; performing third-stage treatment: enabling the watercourse water body to enter a natural depression area, and through gravity sedimentation, performing sedimentation on falling-off aerobic mud after the second-stage treatment is performed; and performing fourth-stage treatment: enabling an aeration oxygen filling device to be arranged in the fourth-stage treatment unit, and adding aerobic bacteria and alga in the water body. Through the adoption of the method for governing the black and the odorous water body and sediment disclosed by the invention, the water body is purified, the problem of water body pollution is controlled, and the sediment is governed to a certain extent; key effects of repairing the local ecological environment and rebuilding ecological balance are achieved; and the governing manner is harmless, and secondary pollution and destroy to the environment cannot be generated, so that the purpose that the water body ecology is restored is finally realized.

Description

technical field

[0001] The invention relates to the technical field of ecological restoration, in particular to a method for treating black and odorous water and bottom mud. Background technique

[0002] With the development of society, especially since the industrial revolution, the speed of urbanization and industrialization has accelerated, but the lack of urban infrastructure has made some urban water bodies, especially small and medium-sized town water bodies, directly become the main discharge channels and channels for industrial, agricultural and domestic wastewater. places, leading to large-scale pollution of urban water bodies, causing eutrophication of water bodies, and forming black and smelly water bodies. The restoration of river ecological purification has become an urgent matter.

[0003] At present, the main technical means to improve river water quality are physical restoration, chemical restoration and biological restoration. Physical restoration is mainl...

Examples

Embodiment 1

[0020] The present embodiment provides a kind of black and smelly water body and the method for sediment control, such as figure 1 As shown, four treatment units are formed by using a rectangle surrounded by steel sheet piles in the upper reaches of the river to be treated, and the river passes through the four treatment units in sequence. The treatment steps include:

[0021] First-level treatment: flowing water enters the first-level treatment unit 1, and oxygenates the polluted water body under the action of the aerator 5, so that the sludge on the surface of the riverbed will rise under the disturbance of the water, and the dissolved oxygen will activate the raw water body And the aerobic microorganisms of the bottom surface sludge, ready for the next level of biodegradation.

[0022] Second-level treatment: After the water flow enters the second-level treatment unit 2, the second-level treatment unit 2 is provided with a filler grid box 7, and a suspension ball filler 6 i...

technical field

[0001] The invention relates to the technical field of ecological restoration, in particular to a method for treating black and odorous water and bottom mud. Background technique

[0002] With the development of society, especially since the industrial revolution, the speed of urbanization and industrialization has accelerated, but the lack of urban infrastructure has made some urban water bodies, especially small and medium-sized town water bodies, directly become the main discharge channels and channels for industrial, agricultural and domestic wastewater. places, leading to large-scale pollution of urban water bodies, causing eutrophication of water bodies, and forming black and smelly water bodies. The restoration of river ecological purification has become an urgent matter.

[0003] At present, the main technical means to improve river water quality are physical restoration, chemical restoration and biological restoration. Physical restoration is mainl...

Examples

Embodiment 1

[0020] The present embodiment provides a kind of black and smelly water body and the method for sediment control, such as figure 1 As shown, four treatment units are formed by using a rectangle surrounded by steel sheet piles in the upper reaches of the river to be treated, and the river passes through the four treatment units in sequence. The treatment steps include:

[0021] First-level treatment: flowing water enters the first-level treatment unit 1, and oxygenates the polluted water body under the action of the aerator 5, so that the sludge on the surface of the riverbed will rise under the disturbance of the water, and the dissolved oxygen will activate the raw water body And the aerobic microorganisms of the bottom surface sludge, ready for the next level of biodegradation.

[0022] Second-level treatment: After the water flow enters the second-level treatment unit 2, the second-level treatment unit 2 is provided with a filler grid box 7, and a suspension ball filler 6 i...

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