摘要
室内模拟研究结果表明,电动修复苯胺污染土壤的过程中,若加入腐植酸会对试验结果有较大影响。当腐植酸浓度大于临界胶束浓度时,可起表面活性剂的作用,使苯胺在土壤中迁移增强并在阳极附近富集。当加入16.7mg/L腐植酸溶液时,苯酚在阳极的富集浓度可以达到未添加腐植酸的1.26倍。腐植酸还可以改变镍的迁移方向,使其在距阳极8cm处富集,富集浓度达到120%。
The results of simulative experiment showed that humic acid added into soil had great effects on electrokintic remediation of aniline polluted soil. HA had an action as a surfactant if its mass concentration was above CMC. As a result, aniline was accumulated nearby anode. If 16.7 mg/L of HA was added into soil, the concentration of phenol was increased by 1.26 times. Moreover, addition of HA could change transporting direction of nickel, and it was accumulated as high as 120% nearby anode 8 cm away.
出处
《腐植酸》
2009年第4期6-10,共5页
Humic Acid
基金
甘肃省自然科学基金资助项目(3ZS061-A25-025)
关键词
土壤污染
腐植酸
电动修复
污染物
soil pollution
humic acid
electrokinetic remediation
pollutants
