摘要
以Pb(NO3)2为模拟污染物,研究了电动力技术对铅污染红壤修复的适应性.结果表明大部分铅能在阴极附近富集.土壤的pH值是影响电动力土壤修复的主要因素,pH值可以通过降低土壤的电导率而导致槽电压升高和土壤发热;还可以通过改变铅的存在形态而降低其修复效率.电动力技术需经过改进才能用于铅污染红壤的修复.
Ex -situ electroremediation tests are conducted on the lead -spiked actual red soils spiked with Pb（ NO3 ）2. The tests show that the electroremediation technology is efficient to remedy Pb contaminated red soils; pH value of red soil is the major factor of dominating electroremedition： pH value of red soil can not only lead to high tank voltage and high temperature of red soil by means of decreasing electro - conductivity of soil, but also reduce remediation efficiency by precipitating Pb and then decreasing mobility of Pb. Hence, electroremediation techniques should be enhanced so as to apply to remedy Pb contaminated red soils.
出处
《南华大学学报（自然科学版）》
2007年第1期82-85,共4页
Journal of University of South China：Science and Technology
关键词
电动力技术
土壤修复
铅污染红壤
electrokinetics
soil remediaton
Pb contaminated red soils
