Ecological revetment based on in-situ solidification of dredged sludge and preparation method thereof

An ecological revetment and in-situ solidification technology, which is applied in ceramic products, coastline protection, infrastructure engineering, etc., to achieve the effects of stabilizing river slopes, regulating climate and beautifying the environment, and good water stability

Active Publication Date: 2018-10-23
堡森(上海)新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ecological bank revetment and its preparation method using dredging mud to solidify in situ, aiming at the difficulty in resource utilization of bottom mud, high processing cost, serious water and soil loss caused by bank slope collapse, and the river bed Eco-environmental problems such as siltation, heavy metal pollution in sediment, and serious soil erosion in lake slope protection. After repeated research, exploration and practical demonstration, an ecological, safe, practical, non-secondary pollution and low comprehensive cost ecological revetment preparation method, The poured and solidified silt has high strength, porosity, water stability, heavy metal adsorption and water erosion resistance, which meets the relevant requirements of revetment structures, and compared with traditional cement concrete sheet piles, wooden piles and other rigid hard revetment It has good ecological characteristics of water conservation and water purification, satisfies the functions of river landscape optimization and ecological environment restoration, and realizes a new treatment plan combining in-situ resource application of dredged mud and ecological restoration to solve the problems proposed in the above background technology question

Method used

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  • Ecological revetment based on in-situ solidification of dredged sludge and preparation method thereof
  • Ecological revetment based on in-situ solidification of dredged sludge and preparation method thereof
  • Ecological revetment based on in-situ solidification of dredged sludge and preparation method thereof

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Effect test

Embodiment 1

[0032] The silt consolidating agent is an environmentally friendly underwater non-dispersible silt consolidating agent for ecological restoration. Its composition and mass parts are:

[0033] Aluminosilicate clinker 30%

[0034] Quicklime 15%

[0035] Desulfurization gypsum 10%

[0036] Metakaolin 20%

[0037] Bentonite 8%

[0038] Waterproofing agent 7%

[0039] Anti-dispersant 2%

[0040] Adsorbent 3%

[0041] Alkali Stimulator 5%

[0042]Among them, the waterproofing agent is a polymer emulsion compounded by 30% latex powder, 60% phenolic resin, and 10% polyvinyl alcohol; It is compounded with sodium; other components are all commercially available products.

[0043] Table 1 Toxicity test results of consolidation agent leachate

[0044]

[0045] Table 1 is the performance test result of the sludge consolidation agent configured for the first time in the present invention, and it can be known from it that the toxicity test of the sample leachate of the environmen...

Embodiment 2

[0047] The preparation method of the ecological bank revetment solidified in situ by dredging mud comprises the following steps:

[0048] (1) By using the existing in-situ mixing equipment, the sediment at the bottom of the river slope is stirred and solidified in-situ and leveled, and naturally maintained in the water as the bottom foundation of the ecological revetment structural system;

[0049] (2) Support imitation wooden pile revetment formwork on the bottom of the water, and then use mechanical mud suction equipment to suck the dredged mud in the river into the vehicle-mounted mixing device, stir the dredged mud in the vehicle-mounted mixing device, and add consolidation agent, Microbial film-forming porous ash, foaming agent and rheological agent, fully stirred and prepared into fluid solidified silt slurry;

[0050] (3) Transport it to the supported imitation pile bank revetment formwork through the pumping device, after manual leveling, natural health preservation in...

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Abstract

The invention discloses an ecological revetment based on in-situ solidification of dredged sludge and a preparation method thereof. The preparation method comprises the following steps that 1) sediment is used as the bottom foundation of the ecological revetment by using a preparation device; and 2) sludge required to be dredged is inhaled into a vehicle-mounted stirring device, solidified sludgeslurry is formed by stirring and adding of a solidifying agent, and the solidified sludge slurry is injected into a wood-pile-imitating revetment template to prepare the ecological revetment. The massratio of the sludge solidifying agent, to sludge, to microporous membrane porous ash, to a foaming agent to a rheological agent in the solidified sludge slurry is (5%-15%): (70%-90%): (5%-15%): (0.1%-2%): (0.1%-2%). The ecological revetment based on in-situ solidification of dredged sludge and the preparation method are ecological, safe, practical, free of secondary pollution and low in comprehensive cost.

Description

technical field [0001] The invention relates to the technical fields of comprehensive utilization of resources and water conservancy and environmental protection engineering, in particular to an ecological bank revetment solidified in situ by dredging mud and a preparation method thereof. Background technique [0002] In order to maintain the normal flood discharge and smooth flow of rivers and lakes and improve water quality, my country carries out large-scale dredging and dredging of rivers and lakes every year, resulting in a large amount of dredged sediment. Due to the high natural water content, high organic matter and heavy metal content, high compressibility, low shear strength, thixotropy and fluidity of dredged mud, it is difficult to transport, landfill and pile up will occupy a large amount of land resources and easily cause secondary pollution. Sub-pollution and poor engineering properties cannot be directly applied to projects. Therefore, the harmless treatment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/12
CPCE02B3/128E02D15/00C04B28/144C04B40/0039C04B2111/00732C04B2111/00017C04B2103/65C04B2103/0078C04B2111/29C04B2111/2038C04B2111/20C04B2201/50C04B24/2623C04B24/302C04B2103/0045C04B14/08C04B14/366C04B24/123C04B7/323C04B2/02C04B14/106C04B14/104C04B2103/0068C04B2103/302C04B2103/402C04B18/0436C04B20/002C04B38/10C04B38/0074Y02A10/11
Inventor 田旭董家晏
Owner 堡森(上海)新材料科技有限公司
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