摘要
采用磁助电动修复技术治理三氯生污染的土壤,用高岭土配置模拟三氯生污染土壤,模拟污染物含量分别为10 000,5 000和1 000 mg·kg-1.直流电源提供恒定电压梯度2 V·cm-1,磁感应强度设置为80 m T.三氯生污染土壤的修复试验结束后,土壤中的三氯生用甲醇萃取,然后采用高效液相法进行检测.经检测,阴极区土壤中三氯生含量远大于阳极区,实现了三氯生的有效迁移.经过10 d的修复过程,磁助电动修复最大污染物去除率达到65.1%.试验数据表明:磁感应强度越大,污染物含量越低,磁助电动修复效率越高.
The magnetic force-assisted electrokinetic(MFA-EK) processes were performed to remediate triclosan(TCS) contaminated soil. Kaolin was used to simulate TCS contaminated soil, and the concentrations of simulated pollutants were 10 000,5 000 and 1 000 mg · kg-1,respectively. A DC power supply was used to provide constant voltage gradient of 2 V· cm-1,and 80 m T magnetic intensity was used to generate magnetic field. The TCS was measured after extraction by methanol and analyzed by HPLC method. The results show that the concentration of TCS in the sections near cathode is more significant than that near the anode sections to indicate the migration of TCS. The highest removal efficiency is 65. 1% after 10 days' reclamation. The experimental results clearly demonstrate that strong magnetic field and low concentration can improve the removal efficiency.
出处
《江苏大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2018年第1期92-95,共4页
Journal of Jiangsu University：Natural Science Edition
基金
国家水体污染控制与治理科技重大专项(2012ZX07102-001)
江苏省科技支撑计划项目(BE2011745)
关键词
土壤
三氯生
污染
磁场
电动修复
soil
TCS
pollution
magnetic field
electrokinetic remediation
