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Supporting material for building permeable reactive barrier and application of supporting material

A technology of reaction wall and construction method, applied in soil protection, construction, excavation, etc., can solve the problems of poor ditch wall support ability, easy collapse, loss of part or all of the pollutant repair ability, etc. The effect of uniform molding and production cost reduction

Pending Publication Date: 2022-04-01
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the poor support ability of the ditch wall and easy collapse in the prior art during the construction of the permeable reaction wall, which leads to uneven formation of the permeable reaction wall and the loss of part or all of the pollutants. repair ability and other deficiencies, thus providing a support material and its application for building permeable reactive walls

Method used

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  • Supporting material for building permeable reactive barrier and application of supporting material
  • Supporting material for building permeable reactive barrier and application of supporting material

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] This embodiment provides a support material, including a first component and a second component;

[0051] The first component comprises guar gum, xanthan gum, sodium bicarbonate and datamone with a mass ratio of 54:36:8:2, and the preparation method of the first component comprises, combining guar gum, xanthan gum , sodium bicarbonate and datamon were mixed evenly, added to water, and mixed evenly to obtain the first component whose concentration was 2g / L.

[0052] The second component includes mannanase, and the mannanase is dissolved in water at 0.5 g / L to obtain the second component.

Embodiment 2

[0054] This embodiment provides a support material, including a first component and a second component;

[0055] The first component comprises guar gum, xanthan gum, mannan, sodium bicarbonate and azoxystrobin with a mass ratio of 59.5:17:8.5:13:2, and the preparation method of the first component comprises: Yeldou gum, xanthan gum, mannan, sodium bicarbonate and azoxystrobin were mixed uniformly, added to water, and mixed uniformly to obtain the first component with a concentration of 5 g / L.

[0056] The second component includes galactomannanase and mannanase with a mass ratio of 80:20, and galactomannanase and mannanase are dissolved in water to obtain a concentration of the second group of 2g / L point.

Embodiment 3

[0058] This embodiment provides a support material, including a first component and a second component;

[0059] The first component comprises guar gum, gum arabic, xanthan gum, sodium hydroxide and chlorobromoisocyanuric acid with a mass ratio of 57:28.5:8.5:5:1, and the preparation method of the first component comprises, Guar gum, gum arabic, xanthan gum, sodium hydroxide and chlorobromoisocyanuric acid were mixed uniformly, added to water, and mixed uniformly to obtain the first component with a concentration of 7 g / L.

[0060] The second component includes galactomannanase and rhamnosidase with a mass ratio of 75:25, and galactomannanase and rhamnosidase are dissolved in water to obtain a concentration of 3g / L for the second group point.

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Abstract

The invention belongs to the technical field of material preparation, and particularly relates to a supporting material for building a permeable reactive barrier and application of the supporting material. The supporting material comprises a first component and a second component, the first component comprises biological glue, a first stabilizer and a second stabilizer; the biological glue comprises guar gum; the biological gum further comprises at least one of xanthan gum, Arabic gum, carrageenan, mannan, locust bean gum, carboxymethyl cellulose and gellan gum; and the second component is hydrolysate. When the supporting material is used for building a permeable reactive barrier, supporting force can be provided for a trench wall, soil on the trench wall of the reactive barrier cannot fall off, the trench wall cannot collapse, the built reactive barrier is uniform in forming and free of defects, the remediation effect of the permeable reactive barrier on soil or underground water is guaranteed, and the service life of the permeable reactive barrier is prolonged. And plate-shaped supports are not needed when the permeable reactive barrier is built, so that the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a support material for building a permeable reaction wall and its application. Background technique [0002] Groundwater remediation technology is a hot issue in the field of environmental research. A lot of research has been done on the remediation of groundwater pollution at home and abroad. The extraction treatment is the most commonly used technology. This method can effectively limit the polluted area to the upstream of the extraction well, but it has many defects as a long-term groundwater treatment method. If it can only limit the further spread of pollution, it cannot be repaired on site, and the repair cost is expensive. At the same time, it may also cause waste of groundwater resources and destroy the original local ecological environment, and cannot fundamentally solve the problem of groundwater pollution restoration. [0003] The permeable re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/10E02D17/08E02D3/00E02D3/12C02F3/34C02F101/30C02F101/20
Inventor 李嘉晨王祺郭丽莉熊静李书鹏辛成刘亚茹薛晋美
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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