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Water remover for soil dewatering and method for soil dewatering

A soil and water agent technology, applied in the field of soil remediation, can solve the problems of low water absorption efficiency of calcium oxide, unsuitable for engineering application, long dehydration period, etc., and achieves the effects of being conducive to popularization and application, short period and low chemical cost

Inactive Publication Date: 2019-03-01
长沙工研院环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water absorption efficiency of single calcium oxide is low, the process of geotechnical tube bag and centrifugal dehydration method is relatively complicated, the cost is high, and the dehydration cycle is long, which are not suitable for engineering applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A small test of a polluted site project in Ningbo, 500g of contaminated soil with a high moisture content, the soil type is clay, the moisture content is 40%, and the mass fraction is 0.3% adsorption ore, 0.2% magnesium sulfate and 0.2n% (n = 1) Calcium oxide, stir evenly, let stand for 5min. Using the weighing method to calculate, the moisture content is reduced to 10%.

Embodiment 2

[0037] A small test of a contaminated site project in Ningbo, 500g of contaminated soil with a high moisture content, the soil type is clay, the moisture content is 40%, and the mass fraction is 0.6% adsorption ore, 0.4% magnesium sulfate and 0.4n% (n = 1) Calcium oxide, stir evenly, let stand for 5min. Using the weighing method to calculate, the moisture content is reduced to 8%.

Embodiment 3

[0039] A small test of a contaminated site project in Ningbo, 500g of contaminated soil with a high moisture content, the soil type is clay, the moisture content is 40%, and the mass fraction is 1.2% adsorption ore, 0.8% magnesium sulfate and 0.8n% (n = 1) Calcium oxide, stir evenly, let stand for 5min. Calculated by weighing method, the moisture content was reduced to 7%.

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PUM

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Abstract

The invention discloses a water remover for soil dewatering and a method for soil dewatering. The water remover comprises the following components: adsorbent ores, magnesium salts, calcium salts, andthe like. The method for soil dewatering comprises the following steps: adding the water remover into soil, uniformly mixing and standing by. The water remover is low in cost; time consumption in thedewatering process of soil is less; dewatering efficiency is high; moisture content in soil is effectively reduced from above 40% to below 10%; no secondary pollution to soil is caused; use process issimple and convenient; popularization and application are benefited.

Description

technical field [0001] The present invention relates to a dewatering agent and a soil dehydration method, in particular to a dehydrating agent for efficient dehydration of loamy soil and clay soil, and in particular to a dehydrating agent composed of adsorbent ore, magnesium salt and calcium salt. The invention relates to a high-efficiency dewatering agent for soil dewatering in the process of treating soil restoration, and also relates to a method for using the water removal agent for soil dehydration, which belongs to the field of soil restoration. Background technique [0002] With the rapid development of industry, the problem of environmental pollution in my country has become more and more serious, and the total point of soil exceeds the standard rate of 16.1%, including heavy metal pollution and organic pollution. The increasingly serious problem of soil pollution has seriously affected the survival and development of human beings. According to the survey, the soil po...

Claims

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Application Information

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IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 张海隆刘卫国熊忠史学锋韩宝禄郝占东王从梦
Owner 长沙工研院环保有限公司
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