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A multi-level urban non-point source pollution purification treatment tank

A purification treatment and non-point source pollution technology, which is applied in the field of purification treatment tanks, can solve problems such as difficulty in promotion, heavy operation and maintenance workload, and uneconomical problems, and achieve low daily operation costs, low production costs, and simple and quick assembly.

Active Publication Date: 2018-01-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has good effects of rainwater purification and recycling, and can form a good landscape effect, but the structure is complex, the cost is high, it occupies more land resources, and the workload of operation and maintenance is large, so it is difficult to popularize in practical applications
[0006] Rainwater collection and purification utilization devices such as Chinese patent CN IO5013244A and Chinese patent CN IO4496106A, or because of deviations in purification effect, or because of complex design, are not economical enough, which limit the practical application of the device

Method used

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  • A multi-level urban non-point source pollution purification treatment tank
  • A multi-level urban non-point source pollution purification treatment tank
  • A multi-level urban non-point source pollution purification treatment tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the present embodiment, the purification treatment tank of the present invention is arranged in shallow ditch areas on both sides of a certain street in Guangzhou City;

[0034] A multi-level urban non-point source pollution purification treatment tank, including a pre-sedimentation tank 1, a multi-level rainwater purification tank 2 and a composite medium artificial wetland 3, the purification treatment tank is buried in a low-lying area next to the street; the purification TiO in a solar photocatalytic system for processing tanks 6 2 The particle diameter of photocatalytic film layer adopts 23nm, and iron-carbon purification layer 19 is divided into six layers, and its top layer and bottom layer are gravel layers, and thickness is 10cm, and middle layer is set by ceramsite layer and iron-carbon layer, and each layer thickness Giving 5cm; planting bamboo plants on the composite medium type artificial wetland;

[0035] The initial rainwater of city street roads flow...

Embodiment 2

[0039] In the present embodiment, the purification treatment tank of the present invention is arranged on the roof greening area of ​​a community in Guangzhou;

[0040] A multi-level urban non-point source pollution purification treatment tank, including a pre-sedimentation tank 1, a multi-level rainwater purification tank 2 and a composite medium artificial wetland 3, the device is located in a green roof area of ​​a community; the solar photocatalysis of the purification treatment tank TiO in System 6 2 The particle diameter of photocatalytic film layer adopts 25nm, and iron-carbon purification layer 19 is divided into four layers, and its top layer and bottom layer are gravel layers, and thickness is 5cm, and middle layer is set by ceramsite layer and iron-carbon layer, and each layer thickness Giving 5cm; planting bamboo plants on the composite medium type artificial wetland;

[0041] The initial rainwater on the roof flows through the multi-level urban surface source pol...

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Abstract

The invention discloses a multi-stage city diffused pollution purifying treatment groove which comprises a presedimentation pool, a multi-stage rainwater purifying pool and a composite medium type constructed wetland. The presedimentation pool comprises an impounding reservoir, a sand setting well, a solar photocatalytic system, an inner connection water inlet pipe and a first water inlet valve. The presedimentation pool is connected with the multi-stage rainwater purifying pool which is connected with the composite medium type constructed wetland. The impounding reservoir is arranged inside the presedimentation pool. The sand setting well is arranged on the inner bottom face of the presedimentation pool. The solar photocatalytic system is arranged on the outer surface of the presedimentation pool. The inner connection water inlet pipe is arranged on the presedimentation pool. The first water inlet valve is arranged between the presedimentation pool and the multi-stage rainwater purifying pool. The multi-stage city diffused pollution purifying treatment groove has the better pollutant removal effect by being combined with the composite medium type constructed wetland. Water purifying materials such as media, plants and microorganisms included by the constructed wetland are all derived from nature, the source is wide, and the problem of secondary pollution is avoided.

Description

technical field [0001] The invention relates to a purification treatment tank, in particular to a multi-level urban non-point source pollution purification treatment tank. Background technique [0002] In recent years, with the increasingly severe water pollution and less and less clean water resources, the development of new energy sources and the recycling of reclaimed water resources have become important issues to be solved urgently. With the rapid development of social economy and the increasing pace of urbanization, all kinds of refractory and easily polluting construction materials, domestic garbage, and sediment in cities and towns will cause a certain degree of pollution to rainwater runoff. Urban surface rainfall carries a large amount of air pollutants and surface pollutants discharged into the rainwater collection pipeline system, which has gradually become a major problem of non-point source pollution of urban water bodies. Therefore, if no purification treatme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/30C02F1/52C02F3/32C02F9/00C02F2103/001
Inventor 利锋谢晓杰
Owner SOUTH CHINA UNIV OF TECH