Ecological restoration method of slow flow reuse water riverway

A technology of ecological restoration and reclaimed water, applied in the field of environmental engineering, can solve problems such as difficult ecological transformation of vertical hard and steep slopes, slow start of ecological restoration technology, and impact on flood control safety, etc., to improve dissolved oxygen levels, reduce sewage transfer links, and enhance metabolism effect of ability

Inactive Publication Date: 2013-11-13
TONGJI UNIV
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  • Application Information

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Problems solved by technology

For some hardened sloping river courses, considering the safety of river channel flood control, there is still some controversy about whether some ecological restoration technologies are applicable. The ecological reconstruction of hard slope protection on the river bank in key flood control areas and the planting of tall emergent plants on both banks may affect flood control safety. In addition, Upright hard steep slopes are also difficult to carry out ecological transformation
In addition, ecological restoration technology still faces problems such as slow start, susceptibility to interference, and unstable results.

Method used

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  • Ecological restoration method of slow flow reuse water riverway
  • Ecological restoration method of slow flow reuse water riverway
  • Ecological restoration method of slow flow reuse water riverway

Examples

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Embodiment 1

[0026] Example 1: Select a section of a city with a three-sided light and slow-flowing river with upright and steep slopes. Reclaimed water is the main supply water source for this river section. The river width is about 20m, the river water velocity is about 0.1m / s, and the normal water level is 50cm within. After surveying the sewage interception of the river, it was found that no sewage has been discharged into the treated river section.

[0027] Build a bionic filler area in the upstream area of ​​the river section. The bionic filler 2 has a diameter of 150 mm and is mounted perpendicular to the river bank by a cable 1. About 20 fillers are arranged on the cable 1, and the two ends of the cable are tied to the piles 4 on the river bank and the center of the river. , the pile rod 4 is connected with the pile foundation 3 at the bottom of the river channel through bolts. Through the setting of the pile foundation 3, a serpentine waterway 5 without filler arrangement is rese...

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Abstract

The invention relates to an ecological restoration method of slow flow reuse water riverway. According to the invention, a bionic filler zone and a submerged plant zone are constructed at a slow flow reuse water riverway; and biological accelerant is added at the early stage of establishment of the engineering to shorten the maturity time for an ecological purification system. River water with reuse water as a supplement water source is purified on the riverway, so that main indexes of water quality of the riverway water are upgraded from grade one emission standard A to surface water standard V.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a method for ecological restoration of a slow-flow regenerated water channel. Background technique [0002] With the development of social economy and the improvement of urbanization level, the water environment of urban rivers has gradually deteriorated, and many rivers have even become sewage channels. The deterioration of urban river water quality and landscape has seriously affected the normal life of surrounding people, and effective governance is urgently needed. However, due to the complex sources of pollutants, insufficient ecological base flow, low self-purification capacity, deep water and rapid flow during flood seasons, urban river management is difficult. Especially for slow-flowing hardened steep-sloped river courses, how to manage them is a technical problem at present. [0003] Commonly used technologies for river course management include: d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F3/32
CPCY02A20/402Y02W10/10
Inventor 成水平钟非吴娟向东方严媛媛周琪
Owner TONGJI UNIV
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