A spiral concave green space that efficiently reduces runoff pollutants

A spiral, pollutant technology, applied in the direction of water pollutants, runoff/rainwater treatment, sewage discharge, etc., can solve the problems of insufficient pollution filtration and absorption, imperfect water regulation, and incomplete absorption of polluting elements, etc., to achieve pollution absorption Various types, prolonging the hydraulic retention time, and improving the effect of cutting rate

Active Publication Date: 2019-02-15
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art of incomplete absorption of polluting elements, incomplete regulation of water volume, and insufficient pollution filtration and absorption, the present invention provides a spiral concave green space that efficiently reduces runoff pollutants

Method used

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  • A spiral concave green space that efficiently reduces runoff pollutants
  • A spiral concave green space that efficiently reduces runoff pollutants
  • A spiral concave green space that efficiently reduces runoff pollutants

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Embodiment 1

[0038] Although there are more and more researches on sunken green spaces, the existing sunken green spaces can meet the treatment of rainfall runoff pollutants to some extent, but there are still obvious defects and deficiencies, (1 ) In the selection of plants in the current concave green space, there is no targeted selection of certain aquatic plants that have a great effect on water purification, which is not conducive to the absorption and utilization of certain polluting elements by vegetation. (2) The hydraulic retention time of the current concave green space is relatively short, which is not conducive to the full absorption and filtration of pollutants by plants and soil fillers; at the same time, the short hydraulic retention time is also not conducive to the storage of rainwater and the Regulation of downstream peak flow.

[0039] The invention provides a spiral sunken green space for efficiently reducing runoff pollutants, which can realize the effects of various t...

Embodiment 2

[0047] Such as Figure 1-4 As shown, a spiral sunken green space for efficiently reducing runoff pollutants includes a spiral sunken green space 1 and a water-retaining filter wall 2, the water-retaining filter wall 2 is rounded, and the spiral sunken green space 1 It includes a spiral plant band 3 and a bottom plant band 4. The design elevation of the spiral concave green space 1 is 250mm lower than the surrounding road surface. Aquatic plants are planted on the spiral plant belt 3 and the plant belt 4 at the bottom of the concave green space. The selected aquatic plants have strong nitrogen and phosphorus absorption capacity and water purification. High capacity aquatic canna and iris.

[0048] The vertical slope of every half circle of the spiral plant belt 3 is designed to be 8°~10°. Here, the vertical slope of each half circle of the spiral plant belt 3 is designed to be 8°. Due to the effect of gravity, when the upstream surface runoff and rainwater flow through the sp...

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Abstract

A spiral valley green space feature capable of reducing pollutants in runoff comprises a spiral valley green space feature (1) and a water retaining and filtering wall (2). The spiral valley green space feature (1) comprises a spiral plant zone (3) and a bottom plant zone (4). The water retaining and filtering wall (2) has a shape of an inverted truncated cone, and consists of 2-3 gravel layers comprising different materials from the inside to the outside.

Description

technical field [0001] The invention relates to the field of rainwater pollution control, in particular to a spiral sunken green space for efficiently reducing runoff pollutants. Background technique [0002] Rainfall runoff pollution is currently the most important non-point source pollution. The randomness of its pollution and the uncertainty of pollutant discharge have attracted more and more attention from governments around the world. Environmentalists around the world have invested a lot of manpower and material resources to deal with Runoff pollution has been studied in various ways. According to different sources of pollutants, rainfall runoff pollution can be divided into urban runoff pollution, agricultural production pollution, rural livestock manure pollution, surface runoff pollution in forest areas, surface runoff pollution in mining areas and construction sites, and other pollution. [0003] With the significant acceleration of my country's urbanization proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F1/00C02F9/14C02F101/16
CPCC02F1/001C02F3/32C02F2101/105C02F2101/16C02F2103/001E03F1/00
Inventor 张毅敏彭福全曾婧高月香巫丹徐斌
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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