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首页> 外文期刊>Australian Geomechanics >EFFECTS OF ELECTROKINETIC TREATMENTS ON THE PROPERTIES OF A SALT AFFECTED SOIL
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EFFECTS OF ELECTROKINETIC TREATMENTS ON THE PROPERTIES OF A SALT AFFECTED SOIL

机译：电动处理对盐渍土性能的影响

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摘要

This paper presents experimental results of a study undertaken to investigate the effects of electrokinetic treatments on selected chemical and physical properties of a salt contaminated (saline) soil. The study was conducted as a laboratory scale pilot project using locally available saline soil samples. The soil was subjected to an electric gradient by passing a direct current between inserted electrodes. After certain electrokinetic treatment periods, the properties of the soil were evaluated. The experimental data reveals that electrokinetic techniques could offer a low cost, rapid solution to treat saline soils. The removal efficiency of sodium ions was found to be greater than 90 percent within a relatively short time period of 14 to 30 days, using low current and voltage systems. After 14 to 30 days, the degree of salinity and sodicity decreased to a very low or negligible level. The unconfined compression strength of the soil increased by between 30 percent to 100 percent in 30 days of electrokinetic treatment indicating the improvements in the physical properties, especially in the stress-strain characteristics of the soil. The liquid limit (LL) and plastic limit (PL) increased at the cathode.
机译：本文介绍了一项研究的实验结果，旨在研究电动处理对盐污染（盐）土壤的选定化学和物理性质的影响。这项研究是作为实验室规模的试点项目，使用当地可获得的盐渍土壤样品进行的。通过使直流电在插入的电极之间使土壤经受电梯度作用。经过一定的电动处理时间后，评估土壤的性质。实验数据表明，电动技术可以为处理盐渍土壤提供低成本，快速的解决方案。使用低电流和电压系统，在14到30天的较短时间内，发现钠离子的去除效率大于90％。 14至30天后，盐度和盐度降低到非常低或可忽略的水平。在电动处理30天后，土壤的无限制抗压强度提高了30％至100％，这表明物理性质特别是土壤的应力应变特性得到了改善。阴极的液体极限（LL）和塑性极限（PL）增加。

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