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A multifunctional system for rainwater infiltration, storage and purification in sponge cities

A sponge city, multi-functional technology, applied in urban rainwater storage and purification, multi-functional systems for collection and purification, and rainwater infiltration fields, can solve problems such as difficult accumulation of urban rainwater and secondary pollution, and improve resource utilization efficiency. , The effect of reducing maintenance costs and good water storage performance

Active Publication Date: 2018-03-09
中壤建设股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a multifunctional system that can be used for rainwater infiltration, storage and purification in sponge cities, so as to solve the problem that urban rainwater is not easy to be accumulated and secondary pollution caused during the accumulation process

Method used

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  • A multifunctional system for rainwater infiltration, storage and purification in sponge cities
  • A multifunctional system for rainwater infiltration, storage and purification in sponge cities
  • A multifunctional system for rainwater infiltration, storage and purification in sponge cities

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Embodiment Construction

[0025] The following will help those skilled in the art understand the present invention more fully in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

[0026] The present invention is a rainwater infiltration, storage and purification multifunctional system that can be used in sponge cities. The system can be set up in residential areas, college campuses, parking lots, parks, roads, etc., and specifically includes the following steps:

[0027] Firstly, select a suitable low-lying position, excavate the bioretention pond 3 foundation pit and the water storage well 7 for storing purified rainwater;

[0028] (1) Lay open edge stone belts 2 at 5 to 10 cm from both sides of the road surface in the bioretention pond 3, which are the water inlet of the bioretention pond 3, and retain some larger materials (such as branches, plastic bags, etc.) at the same time;

[0029] (2) A 3-5 cm anti-seepage film 6 is laid ar...

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Abstract

The invention discloses a multifunctional system for rainwater infiltration, collection and storage and purification of a sponge city.The system comprises a bioretention pond and water storage wells.Firstly, appropriate positions are selected for digging of a foundation pit of the bioretention pond and the water storage wells, and the portions, 5-10 cm away from the two sides of the bioretention pond, of the road surface are paved with opened vertical curb belts.The bioretention pond sequentially comprises a gravel covering layer, a vegetation planting soil layer, a biochar packing layer and a gravel drainage layer from top to bottom, and the periphery and bottom of the bioretention pond are both paved with anti-seepage thin film.An overflow pipe is laid on the gravel drainage layer, an upper end overflow opening is 5-10 cm higher than the gravel covering layer, and the lower end of the overflow pipe is connected with a municipal drainage pipe network.The system can be used at the places such as residential areas, schools, parking lots, parks and roads, not only can rainwater be stored, but also the content of pollutants such as nitrogen, phosphorus and heavy metal can be reduced, the purpose of recycling is achieved, city water logging is effectively relieved, and the rainwater use efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of urban rainwater storage and purification, and specifically relates to the field of a rainwater infiltration, storage and purification multifunctional system that can be used in sponge cities. technical background [0002] Sponge city refers to a city that can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters. use. In recent years, with the frequent occurrence of extreme weather, waterlogging is common in many cities in my country after heavy rainfall. Recently, the concept of "sponge city" has attracted more and more attention in solving urban waterlogging, and has been written into construction plans one after another. In the past, the methods and ideas for controlling urban waterlogging in my country were relatively simple, focusing on the pursuit of large-area hardened pavement, adding and expanding infiltration facilities and undergro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F1/00E03F5/10E01C11/22C02F9/14
CPCC02F1/283C02F3/32C02F9/00C02F2103/001E01C11/22E03F1/00E03F5/10E03F5/102E03F2201/10Y02A10/30
Inventor 韩建刚范弟武朱咏莉
Owner 中壤建设股份有限公司
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