典型文献
Overestimate of remediation efficiency due to residual sodium persulfate in PAHs contaminated soil and a solution
文献摘要：
Oxidation remediation is a commonly used technology for PAHs contaminated soil presently,but the overestimate of efficiency due to ongoing remediation by residual oxi-dants during extraction and testing has not been paid enough attention.In this study,per-sulfate was activated by Fe(Ⅱ) to investigate the effects of residual oxidants on PAHs removal during detection process and the elimination effects of adding Na2SO3 and extending sam-pling time on residual oxidants.Results verified that the residual oxidants removed PAHs in extraction process,making the results lower than the actual values:the detection recovery rate ηof ΣPAHs and 3-6 ring PAHs ranged from 24.3％ (25％ Na2S2O8 treatment) to 87.4％ (5％Na2S2O8+4/4Fe2+ treatment),20.1％-99.0％,28.9％-87.9％,20.8％-89.4％,and 1.8.6％-76.9％,re-spectively.After adding Na2SO3,the accuracy of detection results increased significantly:the η of ΣPAHs and 3-6 ring PAHs increased to 64.1％-96.5％,58.8％-95.5％,73.8％-114.4％,60.6％-95.6％,and 45.4％-77.1％,respectively.After 49 days of adding oxidants,residual oxidants had no considerable effect on the detection of PAHs,indicating it was appropriate to start soil re-mediation verification sampling49 days after the remediation was completed.The observed results will help scientific evaluation of the remediation effects of chemical oxidation on or-ganic contaminated soil.
文献关键词：
中图分类号：
作者姓名：
Liping He;Jianhao Tong;Yuanqiang Yang;Jianxun Wu;Linqian Li;Zhonghua Wei;Wei Long;Jingli Pang;Jiyan Shi
作者机构：
Yunnan Research Academy of Eco-environmental Sciences,Kunming 650034,China;Department of Environmental Engineering,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China;Beijing Construction Engineering Group Environmental Remediation Co.Ltd.,Beijing 100015,China
文献出处：
引用格式：
[1]Liping He;Jianhao Tong;Yuanqiang Yang;Jianxun Wu;Linqian Li;Zhonghua Wei;Wei Long;Jingli Pang;Jiyan Shi-.Overestimate of remediation efficiency due to residual sodium persulfate in PAHs contaminated soil and a solution)[J].环境科学学报（英文版）,2022(03):242-250
A类：
Overestimate,dants,Na2S2O8+4,4Fe2+,sampling49
B类：
remediation,efficiency,due,residual,sodium,persulfate,PAHs,contaminated,soil,solution,Oxidation,commonly,used,technology,presently,but,overestimate,ongoing,by,during,extraction,testing,has,not,been,paid,enough,attention,In,this,study,was,activated,investigate,effects,oxidants,removal,detection,process,elimination,adding,Na2SO3,extending,Results,verified,that,removed,making,results,lower,than,actual,values,recovery,rate,ranged,from,treatment,After,accuracy,increased,significantly,respectively,days,had,considerable,indicating,it,appropriate,start,verification,after,completed,observed,will,help,scientific,evaluation,chemical,oxidation,ganic
AB值：
0.441744
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
