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Wall protection material, permeable reactive barrier and preparation method of permeable reactive barrier

A technology of wall material and reaction wall, applied in the field of retaining wall material, permeable reaction wall and preparation thereof, can solve the problems of reducing the permeability coefficient of the wall and soil, easily blocking the wall and the soil of the side wall, etc., so as to improve the permeability of the wall. coefficient, ensure long-term operation, and ensure the effect of physical characteristics

Pending Publication Date: 2022-04-12
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the wall and side wall soil easily blocked by wall retaining mud material residue in the prior art, and reduce the defect of wall and soil permeability coefficient, thereby providing a kind of retaining wall material and permeable reaction wall and its preparation method

Method used

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  • Wall protection material, permeable reactive barrier and preparation method of permeable reactive barrier
  • Wall protection material, permeable reactive barrier and preparation method of permeable reactive barrier
  • Wall protection material, permeable reactive barrier and preparation method of permeable reactive barrier

Examples

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Embodiment 1

[0079] The present embodiment provides a wall protection material, which consists of 90 tons of guar gum, 9 tons of sodium carbonate, and 1 ton of cotton wool.

[0080] This embodiment also provides a permeable reactive wall, the raw materials of which include 100 tons of the above-mentioned wall protection material, 90 tons of 100-mesh river sand, 5 tons of 300-mesh zero-valent iron powder, and 5 tons of coated hydrocolloid degrading enzyme.

[0081] Among them, the coated hydrocolloid degrading enzymes include: 9 tons of mannanase, 1 ton of polyvinyl alcohol, and 0.5 tons of polyethylene. The preparation method includes: mixing 9 tons of mannanase and 1 ton of polyvinyl alcohol to prepare mannanase granules with an average particle size of 1.5mm; adding 0.5 tons of polyethylene to 12.5 tons of tetrachlorethylene and heating to 100°C , stirring and dissolving to obtain the coating solution; use a heater to heat the air inside the fluidized bed equipment to 75°C, and then add ...

Embodiment 2

[0087] This embodiment provides a wall protection material, which consists of 80 tons of xanthan gum, 5 tons of sodium hydroxide, and 0.1 tons of azoxystrobin.

[0088] This embodiment also provides a permeable reactive wall, the raw materials of which include 85.1 tons of the above-mentioned wall protection material, 85 tons of 100-mesh river sand, 7 tons of 300-mesh iron-carbon filler, and 10 tons of coated hydrocolloid degrading enzyme.

[0089] Among them, the coated hydrocolloid degrading enzymes include: 8 tons of galactosidase mannanase, 2 tons of attapulgite, and 1 ton of polyurethane DP3070A. The preparation method includes: mixing 8 tons of galactosidase mannanase and 2 tons of attapulgite to prepare galactosidase mannanase particles with an average particle size of 1.2 mm; adding 20 tons of dichloromethane to 1 ton of polyurethane DP3070A In methane, heat to 80°C, stir and dissolve to obtain the coating liquid; use the heater to heat the nitrogen inside the fluidize...

Embodiment 3

[0095] This embodiment provides a wall protection material, which consists of 95 tons of carrageenan, 15 tons of potassium hydroxide, and 2 tons of chlorobromoisocyanuric acid.

[0096] This embodiment also provides a osmotic reaction wall, the raw materials of which include 112 tons of the above-mentioned wall protection material, 80 tons of 90-mesh river sand, 10 tons of zeolite and 10 tons of coated hydrocolloid degrading enzyme.

[0097] Among them, the coated hydrocolloid degrading enzymes include: 9 tons of galactase and 2 tons of sodium lignosulfonate, 0.3 tons of epoxy resin CYD-014U, the preparation method is: 9 tons of galactase and 2 tons of lignin Sodium sulfonate was mixed to prepare galactase granules, with an average particle size of 3 mm; 0.3 tons of epoxy resin CYD-014U was added to 9 tons of acetone, heated to 120 ° C, stirred and dissolved to obtain a coating solution; the fluidized The air inside the bed equipment is heated to 90°C, and then 11 tons of mann...

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Abstract

The invention belongs to the technical field of wall protection materials, and particularly relates to a wall protection material, a permeable reactive barrier and a preparation method of the permeable reactive barrier. The hydrophilic colloid and the strong base are matched for use, so that the permeability coefficient of the permeable reactive barrier is greatly improved, a solution with relatively high viscosity can be formed, and relatively high pressure can be provided under the condition that bentonite and clay are not used, so that the trench wall cannot collapse.

Description

technical field [0001] The invention relates to the technical field of wall protection materials, in particular to a wall protection material, a permeable reactive wall and a preparation method thereof. Background technique [0002] In recent years, the treatment of soil and groundwater pollution has received more and more attention. Osmotic reaction wall refers to a passive in-situ groundwater treatment technology filled with media. The osmotic reaction wall is set on the cross-section of the polluted groundwater flow path, and through the contact of the reaction material filled in the wall with the groundwater, the pollution components in the water are degraded and retained, so as to achieve the purpose of remediating the polluted groundwater. As an environmental remediation and risk control technology for soil and groundwater pollution control, the permeable reactive wall has the advantages of low price and long service life. The usual construction method of permeable r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B26/28
Inventor 郭丽莉王祺李嘉晨熊静王勇康绍果李书鹏樊强许铁柱
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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