Ecological dredging handling method for riverways or lakes

An ecological dredging and treatment method technology, applied in the field of river and lake pollution control, can solve the problem of ecological niche restoration without consideration of engineering, environment, sustainable development of ecological river and lake water, high construction intensity and labor intensity of workers, and a large number of machinery. equipment and other problems, to achieve the effect of curbing the degradation of river stability, improving water ecological cycle, and restoring ecological environment

Active Publication Date: 2015-12-16
HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these methods play a positive role in the pollution control of rivers and lakes, when the dredging volume is large, a large amount of mechanical equipment and labor are required, the construction intensity and labor intensity are high, the management is inconvenient, and the implementation is difficu...

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  • Ecological dredging handling method for riverways or lakes
  • Ecological dredging handling method for riverways or lakes
  • Ecological dredging handling method for riverways or lakes

Examples

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Embodiment 1

[0046] An ecological dredging treatment method for river courses or lakes, including the treatment of sediment, riverbed and embankment banks, specifically comprising the following steps:

[0047] (1) Use a temporary dam to divide the river into multiple cofferdams, dig out the sediment in the cofferdam, add modifiers to the sediment to modify it, remove heavy metal ions in the sediment, and then transport it to the sediment for storage The drying field is reused after drying treatment; the surrounding of the sediment storage drying field is provided with an enclosure, the inner wall of the enclosure is provided with an anti-seepage geomembrane, and the bottom sludge storage drying field is from the bottom to the top A blind ditch anti-seepage layer, a blind ditch, a mud bed cushion, a mud bed filter layer, and a sediment storage layer for stacking sediment are arranged in sequence, and a leachate collection pipe is arranged in the blind ditch;

[0048] (2) A support layer, a ...

Embodiment 2

[0057] Use the ecological dredging treatment method of a river course or lake of the present invention to control the river course of a certain city in the south. Among the water quality evaluation indicators before treatment, CODcr, ammonia nitrogen, total nitrogen and total phosphorus are inferior to category V in all sections, which belong to a typical "black and smelly" river. After treatment, the black and smelly river has been eliminated, and the river water body is transparent in summer It is generally increased to 400mm, and reaches 600mm in winter, and the water quality meets the "Water Quality Standards for Sewage Recycling and Landscape Environment Water" (GB / T18921-2002).

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Abstract

The invention discloses an ecological dredging handling method for riverways or lakes. The method comprises the steps that firstly, bottom mud excavation and drying handling are performed; secondly, a supporting layer, a transition layer, a reaction layer and a safety coverage layer are sequentially arranged on a riverbed upwards after bottom mud dredging is performed, and a river bottom biological membrane recovery system is formed; and thirdly, the river bank and a river levee are handled to form an ecological bank protection system. According to the riverway water ecological system, under the background that bottom mud is polluted, an ecological recovery project implemented according to the development ecological theory is applied, and the method essentially achieves the purpose of sustainably-developing ecological niche recovery for the riverways or the lakes with the combination of projects, environment and ecology.

Description

technical field [0001] The invention belongs to the field of pollution control of rivers and lakes, and further refers to an ecological dredging treatment method for rivers or lakes. Background technique [0002] Rivers are an important carrier of civilization continuation and economic development, an important part of the harmonious coexistence between man and nature, and one of the symbols of urban quality. In recent years, as my country's economy has taken off, the pace of urbanization has accelerated, and the amount of urban sewage has increased. Many urban rivers have been seriously polluted, and black and odor problems have become prominent. [0003] The main pollution sources of rivers and lakes are: ①domestic sewage; ②surface runoff; ③domestic garbage; ④construction pollution; The specific manifestations are: serious leakage of domestic sewage along the coast, and part of the sewage directly flows into the river; the fluidity of the river water body is poor, and the...

Claims

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Application Information

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IPC IPC(8): E02B3/02E02B3/04E02B3/12E02B3/16C02F11/14C02F3/32C02F11/00
CPCY02A10/00
Inventor 钟儒波游建军胡志鑫唐传祥
Owner HUNAN AIRBLUER ENVIRONMENTAL PROTECTION TECH
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