摘要
为了验证纳米CaO_(2)强化电动修复苯酚污染土壤的可行性,利用实验室级别的自制土壤修复装置探究了在不同电压梯度、修复时间、投药点位、投药量条件下土壤中苯酚的迁移去除规律,并采用红外光谱对修复后土壤中残存的苯酚进行了分析。结果表明:在修复电压为2.0 V/cm、修复时间为7 d、纳米CaO_(2)投加量为3.47 g、加药装置固定在距阳极3 cm处时,土壤中苯酚的去除率可达94.88%;红外光谱分析显示纳米CaO_(2)可以促使苯酚发生氧化分解反应。
In order to validate the practicability of the improvement in electro-remediation of phenol-contaminated soil by nano-CaO_(2),the migration and removal of phenol in soil under different voltage gradients,remediation times,dosing sites and dosing amounts were investigated using a laboratory-level homemade soil remediation device.The residual phenol in the soil after remediation was analyzed by infrared spectroscopy.The results show that the removal ratio of phenol in soil can reach 94.88%at a remediation voltage of 2.0 V/cm,a remediation time of 7 d,a nano-CaO_(2) dosage of 3.47 g,and a dosing device fixed at 3 cm from the anode.The infrared spectrum analysis shows that nano-CaO_(2) can promote phenol oxidation decomposition reaction.
作者
刘蕾
王恩赐
杨磊
李晓琪
张康
李亚林
LIU Lei;WANG Enci;YANG Lei;LI Xiaoqi;ZHANG Kang;LI Yalin(College of Environmental and Biological Engineering,Henan University of Engineering,Zhengzhou 451191,China)
出处
《河南工程学院学报（自然科学版）》
2022年第1期35-40,共6页
Journal of Henan University of Engineering：Natural Science Edition
基金
河南省科技攻关项目(212102310064)
河南省高等学校青年骨干教师培养计划(2019GGJS239)
教育部中西部高等学校青年骨干教师国内访问学者项目(19042)
大学生创新创业训练计划项目(202111517002)。
关键词
电动修复
过氧化钙
苯酚
高级氧化
有机污染
electric remediation
calcium peroxide
phenol
advanced oxidation
organic pollution
