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Method for treating fine grain excavation soil through capillary evaporation film

A fine-grained, excavated soil technology, applied in the restoration of polluted soil, etc., can solve the problems of poor soil permeability of fine-grained particles, and the results of fine-grained treatment cannot meet the required standards.

Pending Publication Date: 2018-08-03
湖南力永环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when thermal desorption is used to treat excavated soil, the treatment results of fine particles often fail to meet the required standards.
At the same time, due to the poor permeability of fine-grained soil, when some physical treatment methods are used,

Method used

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  • Method for treating fine grain excavation soil through capillary evaporation film
  • Method for treating fine grain excavation soil through capillary evaporation film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see figure 1 , the method of utilizing the capillary evaporation film to process fine particle excavated soil comprises the steps:

[0026] (1) Lay a layer of blocking film 15 made of waterproof material on the well-leveled site 45, lay a layer of high-permeability layer 55 on the blocking film 15, and stack the fine-grained excavated soil 95 on the high-permeability on layer 55;

[0027] (2) A water tank 50 is set at the position where the fine-grained excavated soil 95 is not stacked at the high-permeability layer 55, and the water tank 50 communicates with the water level control device 100, and the water level control device 100 communicates with the water source;

[0028] (3) Wrap the fine-grained excavated soil 95 around with the blocking film layer 15 to prevent the moisture in the fine-grained excavated soil 95 from escaping to the atmosphere;

[0029] (4) A capillary evaporation film is laid on the top of the fine-grained excavated soil 95, and the capillary ...

Embodiment 2

[0032] see figure 2 , the method of utilizing the capillary evaporation film to process fine particle excavated soil comprises the steps:

[0033] (1) Lay a layer of blocking film 15 made of waterproof material on the well-leveled site 45, lay a layer of high-permeability layer 55 on the blocking film 15, and stack the fine-grained excavated soil 95 on the high-permeability on layer 55;

[0034](2) A water tank 50 is set at the position where the fine-grained excavated soil 95 is not stacked at the high-permeability layer 55, and the water tank 50 communicates with the water level control device 100, and the water level control device 100 communicates with the water source;

[0035] (3) Wrap the fine-grained excavated soil 95 around with the blocking film layer 15 to prevent the moisture in the fine-grained excavated soil 95 from escaping to the atmosphere;

[0036] (4) Lay a capillary evaporation film on the top of the fine-grained excavated soil 95, the capillary evaporat...

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Abstract

The invention discloses a method for treating fine grain excavation soil through a capillary evaporation film. The method comprises the steps that 1, a blocking film layer made from waterproof materials is laid on a flat place, a high permeable layer is laid on the blocking film layer, and fine grain excavation soil is stacked to the high permeable layer; 2, the position, where no fine grain excavation soil is stacked, on the high permeable layer is provided with a water groove, the water groove communicates with a water level control device, and the water level control device communicates with a water source; 3, the periphery of the fine grain excavation soil is wrapped by the blocking film layer, and moisture in the fine grain excavation soil is prevented from being dissipated to atmosphere; and 4, the capillary evaporation film is laid on the top of the fine grain excavation soil, wherein the capillary evaporation film comprises a blocking film layer laid on the top face of the finegrain excavation soil, capillary terminals distributed on the blocking film layer and a capillary film layer laid on the capillary terminals, the capillary terminals pass through the blocking film layer, one ends of the capillary terminals make contact with the capillary film layer, and the other ends of the capillary terminals make contact with the fine grain excavation soil.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for treating fine-grained excavated soil by using a capillary evaporation film. Background technique [0002] Since the beginning of human industrialization, pollution has been accompanied by the process of industrialization. Since the 1950s, in order to curb pollution, various protective measures have emerged in an endless stream. Compared with the control of more and more pollution sources, the pollution that has been produced, especially the pollution of soil, has become the focus of environmental problems. Various methods of remediation of contaminated soil have emerged one after another. Generally speaking, from a broad perspective, there are in-situ restoration and ex-situ restoration, and the methods used include physical restoration, chemical restoration and phytoremediation. The common point of all these methods is to use external...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
CPCB09C1/00
Inventor 陈有志
Owner 湖南力永环保科技有限公司