Water quality purification and water ecological restoration method of polluted municipal internal lake

A technology of water quality purification and restoration methods, applied in chemical instruments and methods, polluted waterways/lakes/ponds/rivers treatment, biological water/sewage treatment, etc., can solve problems affecting urban water environment quality and water ecological landscape, water bodies Problems such as low self-purification ability and urban underlying surface pollution

Active Publication Date: 2018-02-27
HUATIAN ENG & TECH CORP MCC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] As the receiving body of urban surface runoff and even surrounding domestic sewage, urban inner lakes cause the accumulation of organic matter, nitrogen, phosphorus and other nutrients in the water; moreover, most of the water bodies are closed and slow-flowing water bodies with static or poor fluidity, and the general water environment capacity is small and the water bodies are self-purifying The capacity is low. During the rainy season, the pipeline sediments are washed and overflowed into the river, and the bottom of the river settles. Under anaerobic conditions, hydrogen sulfide, ammonia and other odorous gases are produced. However, it shows severe eutrophication, and large-scale outbreaks of blue-green algae have seriously affected the quality of urban water environment and water ecological landscap

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  • Water quality purification and water ecological restoration method of polluted municipal internal lake
  • Water quality purification and water ecological restoration method of polluted municipal internal lake

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as Figure 1-2 As shown, the present invention provides a method for water quality purification and water ecological restoration of inner lakes in polluted cities, where rainwater outlets (or mixed sewage overflow outlets) 1 along the rivers entering the lake are discharged into the rivers, and rainwater sewage pre-treatment facilities are set. Treatment and purification area 2, rainwater pretreatment purification area 2 is equipped with multi-level multi-aperture interception net 3 to intercept suspended solids of different particle sizes, and then conduct contact oxidation through packing purification unit 4 to realize overflow of rainwater outlets (or mixed drainage) along the river mouth) 1 Pretreatment of river pollutants.

[0021] Wherein, intercepting net 3 can adopt multi-layer ecological web with different apertures. The packing purification unit...

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Abstract

The invention discloses a water quality purification and water ecological restoration method of a polluted municipal internal lake. The method disclosed by the invention comprises the following steps:1) setting a rain and sewage pre-treatment purification region at a a location where an along-river rainwater outlet or a mixed discharging sewage overflowing opening of an into-lake river channel isconverged with a river channel; 2) carrying out micro-topography water ecology construction in the lake, wherein the micro-topography water ecology construction comprises the step of sequentially constructing a shallow-water submerged plant recovery region, a gentle slope transition region and a deep water regulation and storage region from a lakeside to the middle of the lake; planting submergedplants into the submerged plant recovery region; 3) arranging a circulating water pump in the middle of the lake or the deep water regulation and storage region and arranging a circulating pipeline at the bottom of the lake. The water quality purification and water ecological restoration method of the polluted municipal internal lake is applicable to environment management on pipe network overflowing polluted and town surface runoff polluted municipal internal lake water with a high into-lake load and can be used for remarkably improving the water quality of the lake, reducing the eutrophication degree of the lake and recovering a water ecological landscape.

Description

technical field [0001] The invention relates to a method for water quality purification and water ecological restoration of inner lakes in polluted cities. Background technique [0002] As the receiving body of urban surface runoff and even surrounding domestic sewage, urban inner lakes cause the accumulation of organic matter, nitrogen, phosphorus and other nutrients in the water; moreover, most of the water bodies are closed and slow-flowing water bodies with static or poor fluidity, and the general water environment capacity is small and the water bodies are self-purifying The capacity is low. During the rainy season, the pipeline sediments are washed and overflowed into the river, and the bottom of the river settles. Under anaerobic conditions, hydrogen sulfide, ammonia and other odorous gases are produced. However, it shows severe eutrophication and large-scale outbreak of blue-green algae, which seriously affects the quality of urban water environment and water ecologi...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/32C02F3/34C02F2103/007
Inventor 吴述园詹茂华程寒飞甘露
Owner HUATIAN ENG & TECH CORP MCC
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