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Multistage compound strengthening and purifying method for tidal waterway in coastal city

A coastal and urban technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water pollutants, etc., can solve problems such as destroying the ecological balance of water ecosystems, reduce pollutant discharge into estuaries, and beautify urban rivers , improve the effect of social service function

Active Publication Date: 2015-09-23
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0003] Coastal cities also face another problem in urban river restoration, that is, the current ecological restoration of urban inland rivers is mainly based on the construction of freshwater ecosystems. Seawater intrusion during high tide will seriously affect the survival of freshwater organisms in the restored river section, destroying the artificial environment in the river. The ecological balance of the constructed water ecosystem

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  • Multistage compound strengthening and purifying method for tidal waterway in coastal city
  • Multistage compound strengthening and purifying method for tidal waterway in coastal city
  • Multistage compound strengthening and purifying method for tidal waterway in coastal city

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0048] Such as figure 1 as shown,

[0049] In one embodiment, a multi-stage composite enhanced purification method for tidal rivers in coastal cities uses river partitioning to allow river water with high pollution loads to enter the restoration system step by step, forming suspended solids sedimentation-organic matter removal-nitrogen and phosphorus load reduction Combined with the design of artificial water ecological landscape, to achieve the purpose of urban river water quality restoration and landscaping, it mainly includes the following steps:

[0050] Step 1: Divide the tidal river channel of the coastal city into regions, from its estuary to the upstream, into A region 1, B region 2, C region 3, D region 4 and E region 5;

[0051] Step 2: Set a first adjustable dam 6 between ...

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Abstract

The invention discloses a multistage compound strengthening and purifying method for a tidal waterway in a coastal city. The method comprises the following steps: at the aim of the requirements of ecological restoration to tidal waterways in coastal cities, regional division is performed on the tidal waterway, and the tidal waterway is divided into a region A, a region B, a region C, a region D and a region E in sequence; a first front setting tank is arranged in the region A, intensifying and clarifying tanks are formed in the region B and the region C, and a plurality of artificial aquatic-plant regions and artificial aeration regions are arranged in the intensifying and clarifying tanks; an ecological restoration and landscape repairing regions are arranged in the region C; porous ecological walls are arranged on the frontiers of the region B, the region C and the region D. The method provided by the invention is also suitable for ecological management to common city river ways, is particularly suitable for ecological restoration and treatment to tidal river courses influenced by sea water in coastal cities, has a remarkable effect for enhancing the landscape function of city river reach, and is classified as a scientific, effective and sustainable environment friendly treatment method.

Description

technical field [0001] The invention relates to the technical field of river channel ecology, in particular to a multi-stage composite enhanced purification method for tidal river channels in coastal cities. Background technique [0002] A large amount of pollutants in the river channel flowing through the population gathering area are directly discharged into the river without treatment, causing serious pollution to the water body. In order to meet the needs of flood control and flood discharge, cities consider river reconstruction more from an engineering point of view. The river is cut and straightened, and the two sides of the river are solidified with cement and steel on three sides. With the disappearance of the environment, its ecological function and purification ability will also degrade, which will directly lead to the disappearance of a large number of organisms in the river, and the high-load pollution discharge will easily collapse the ecological system inside t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCY02A20/402
Inventor 彭文启渠晓东张晶吴文强解莹
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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