Method for controlling initial rainwater pollution of lake landscape water body

A technology for initial rainwater and pollution control, applied in runoff/rainwater treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as additional land occupation and landscape impact, and achieve the effect of avoiding pollution

Inactive Publication Date: 2017-06-20
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Application Information

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Problems solved by technology

The construction of primary rain treatment facilities next to the landscape water body of the lake can effectively reduce the pollu

Method used

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  • Method for controlling initial rainwater pollution of lake landscape water body
  • Method for controlling initial rainwater pollution of lake landscape water body

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Experimental program
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Embodiment 1

[0054] Such as figure 1 , figure 2 As shown, a method for controlling the initial rainwater pollution of a lake landscape water body, including non-woven fabric 1, plant gravel layer 2, ecological retaining wall brick 3, ecological fish nest brick 4, and mesophyte planted in the ecological retaining wall brick 5 plants, 6 plants with medium and low stems resistant to flooding, and 7 aquatic plants. The non-woven fabric 1 is arranged on the outermost side of the lakeshore, and the plant gravel layer 2 is laid on the outside of the non-woven fabric 1, and the ecological retaining wall brick 3 and the ecological fish nest brick 4 are arranged on the plant gravel layer, and the ecological retaining wall brick 3 , between the ecological fish nest bricks 4 and between the ecological retaining wall bricks 3 and the ecological fish nest bricks 4 are connected by an ecological brick connecting bolt 8. The three-dimensional biological embankment mainly adopts the ecological retaining...

Embodiment 2

[0067] A lake landscape water body in a park covers an area of ​​50,000 square meters. The water quality before the transformation of the lake landscape water body is: COD50mg / L, ammonia nitrogen 1.9mg / L, total phosphorus 0.15mg / L, and transparency 40cm. The above-mentioned initial rainwater pollution control technology is adopted , transforming the lakeshore into a water body and soil body suitable for biological growth, water body and plants or biological mutual conservation imitating the natural state, the aquatic plants are planted in the lake with a water depth below 75cm, planted in the planting tanks of ecological retaining wall bricks, and the planting species is goldfish algae, bitter grass, elodea, syringa, etc., the submerged medium-dwarf plants are planted in the lake with a water depth of 75cm or more; the medium-growing plants are planted at the connection between the lake shore and the surrounding environment, and the planting varieties are rhododendron, heather, ...

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Abstract

The invention belongs to the technical field of water restoration, and discloses a method for controlling initial rainwater pollution of a lake landscape water body. The method specifically combines a non-point source pollutant reduction technique, an ecological improvement technique and a landscape water body biological self-purification function strengthening technique to form a system for controlling the initial rainwater pollution. The system comprises combined treatment of ecological bricks, a plant treatment system and aquatic animals. The method integrates the non-point source pollutant reduction technique, the ecological improvement technique and the landscape water body biological self-purification function strengthening technique into an integral whole, uses the adsorption and filtration functions of the ecological bricks, and uses the large-area contacts of developed root systems of submergence tolerant medium and short stem plants with the water body to form dense filter layers to adhere insoluble colloids and settle organic detritus. Aquatic plants absorb nitrogen and heavy metal elements of the initial rainwater, provide an adhesive substrate and a habitat place for microorganisms, and greatly accelerate the decomposition of the organic colloids or suspended matters trapped in the root systems, so as to adjust the ecological cycle system, and rebuild the lake ecosystem.

Description

technical field [0001] The invention belongs to the technical field of water body restoration, and in particular relates to a method for controlling initial rainwater pollution of a lake landscape water body. Background technique [0002] In the process of city formation and development, urban landscape water body, as an important resource and environmental carrier of the city, is related to the survival of the city, restricts the development of the city, and is an important factor affecting the style of the city and beautifying the urban environment. [0003] Most of the landscape water bodies in southern cities are in a state of strict gate control. There is basically no transit water in non-flood seasons. Nutritization intensifies, water ecosystems degrade, and landscape water bodies gradually lose their due environmental and social functions. [0004] Most of the lake landscape water bodies are distributed in parks, large residential areas, villages and towns, and other...

Claims

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Application Information

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IPC IPC(8): C02F3/32E02B3/12
CPCC02F3/327C02F2103/001C02F2103/007E02B3/129Y02W10/10
Inventor 虢清伟常莎陈思莉黄大伟易皓
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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