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Compound type constructed wetland system

A constructed wetland system and composite technology, applied in the field of composite constructed wetland systems, can solve problems such as agricultural non-point source pollution, and achieve the effect of recycling, green and pollution-free agricultural production

Inactive Publication Date: 2010-12-01
SHANGHAI OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the technical problem of agricultural non-point source pollution, and provides a composite constructed wetland system

Method used

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  • Compound type constructed wetland system
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  • Compound type constructed wetland system

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Embodiment 1

[0033] The specific implementation process of the composite constructed wetland system of the present invention will be described in conjunction with an actual project case - the constructed wetland in Shanghai Qingpu Modern Agricultural Park to deal with agricultural non-point source pollution. figure 1 Shown is the location map of the complex constructed wetland system in Shanghai Qingpu Modern Agricultural Park. There are rice fields, vegetable fields, and intensive fish ponds in the park. There is a certain amount of agricultural non-point source pollution. Two relatively closed rivers (Zhongbei River, Zhengzhong River, Zhongnan River, Dianzhong River, and Dianxi River) are receiving water bodies polluted by non-point sources. The composite constructed wetland system is located in the channel connecting Zhongbei River 2 and Zhengzhong River 1 .

[0034] Such as figure 2As shown, the composite constructed wetland system includes a vertical flow harbor flow wetland 3 (3 un...

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Abstract

The invention discloses a compound type constructed wetland system which is arranged in a region connected with at least one non-point source pollution receiving water body and comprises an subsurface flow wetland and a surface flow wetland, wherein the subsurface flow wetland and the surface flow wetland are artificially arranged, the subsurface flow wetland is positioned at the near end of each non-point source pollution receiving water body, and the surface flow wetland is arranged at one end of the subsurface flow wetland away from the non-point source pollution receiving water body. The compound type constructed wetland system not only controls agricultural non-point source pollution, but also realizes the cyclic utilization of water resources.

Description

technical field [0001] The invention relates to a constructed wetland, in particular to a composite constructed wetland system for controlling agricultural non-point source water pollution. Background technique [0002] With the development of China's rural economy and the extensive use of chemical fertilizers and pesticides, agricultural non-point source pollution has become the primary problem of China's environmental pollution. Non-point source pollution refers to the dissolved and solid pollutants in the atmosphere, ground or soil, under the action of rainfall (or snowmelt), entering the receiving water body through the runoff process, including rivers, lakes, reservoirs, aquifers and bays, etc., causing water pollution. Eutrophication or other forms of pollution. The main pollutants produced by agricultural non-point source pollution, such as chemical fertilizers, pesticides, insecticides, etc., although some can be absorbed and utilized by plants, most of them flow in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34C02F3/30
CPCY02W10/10
Inventor 王丽卿季高华谢平范志锋卢子园郑小燕
Owner SHANGHAI OCEAN UNIV
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