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Impurifying ecological bank-protection combined system

An ecological bank protection and combined system technology, applied in the direction of coastline protection, can solve the problems of limited interception and purification effect, inability to effectively remove pollutants, and short residence time, so as to ensure the interception and purification effect, clear seepage path, and increase residence time. Effect

Inactive Publication Date: 2009-01-21
HOHAI UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

However, these revetment technologies only have a certain interception and purification effect on small-flow rainfall runoff non-point source pollution. When the rainfall runoff flow is large, the residence time when flowing through the slope is too short, and the pollutants cannot be effectively removed, and the interception and purification effect is very high. limited

Method used

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  • Impurifying ecological bank-protection combined system
  • Impurifying ecological bank-protection combined system

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Embodiment Construction

[0017] Such as figure 1 , 2 As shown, a mortar masonry retaining wall 3 is set at the intersection of the bank slope 1 and the river bottom 2 of the river. A high 5cm sill 5 is set, and the slope is divided into three sections, which are raised successively from top to bottom; on the slope, an 8cm thick coarse sand layer 4 is first laid, and then the slope is successively placed in each section in the order from bottom to top. Laying 10cm, 15cm, 20cm thick crushed stone permeable layer 6 on the coarse sand layer of the section, the diameter of the crushed stone is 1.0-5.0cm, and finally laying "8" shaped sandless concrete ecological brick 7 on the crushed stone layer; At the intersection of bank slope 1 and road 8, road 8 side excavates a right-angled trapezoidal sump 9 with upper bottom 90cm, lower bottom 50cm, and height 40cm, and 8cm thick coarse sand cushion 4 is laid at the bottom of sump 9, filling the diameter in the groove 1.0-5.0cm gravel, the top of the groove is s...

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Abstract

The invention relates to revetment combination system that has cutoff purifying function to the river rainfall runoff surface contaminating material. It sets non-sand concrete curbstone at the intersection of road and bank slope, a catch water channel is set at one side of intersection road, where coarse sand bedding is paved. Crushed stones are filled in the channel, and the top of channel is sealed by non-sand concrete. On the band slope toward water side paves coarse sand, crushed stone of different thickness, and ecology brick. Cement laid stone masonry breast wall is set at basal slope, and growing plant at the bank slope. It increases the residence time for runoff in the system and takes purification to it.

Description

technical field [0001] The invention relates to an environmental protection type river revetment facility, in particular to a slope-type variable seepage diameter area source interception and purification ecological bank revetment combination system which has interception and purification effects on rainfall runoff non-point source pollutants entering the river at different flows. Background technique [0002] With the acceleration of the development of my country's urbanization level, the proportion of permeable area is getting smaller and smaller, and the sudden and impactful urban non-point source pollution caused by storm runoff has become one of the main sources of water environmental pollution in receiving water bodies. one. Urban rainstorm runoff contains a large amount of pollutants, and the pollution load of initial runoff is much higher than that of urban domestic sewage. Water environmental pollution caused by non-point sources of rainfall runoff has become one of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/12
Inventor 王超王沛芳王艳颖侯俊
Owner HOHAI UNIV
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