A comparative study of methods for remediation of diesel-contaminated soil  

作　　者：Fan-xu MENG Yan SONG Li-juan MAO Wen-jun ZHOU Dao-hui LIN 

机构地区：[1]Department of Environmental Science,Zhejiang University,Hangzhou 310058,China [2]Analysis Center of Agrobiology and Environmental Sciences,Zhejiang University,Hangzhou 310058,China [3]The Institute of Zhejiang Ecological Civilization,Huzhou 313300,China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2021年第10期792-804,共13页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the Science and Technology Research Program of Zhejiang Province(No.2020C03011);the National Natural Science Foundation of China(No.21621005);the National Key Research and Development Program of China(No.2017YFA0207003)。

摘　　要：Soil pollution by diesel fuels is a worldwide environmental problem,but little research has been carried out into on-site techniques for remediation of soil polluted by waste solvents.This study compared chemical oxidation and soil washing methods for their efficiency and environmental and economic impacts.Soil was spiked with 0#diesel to simulate an actual pollution level of about 1260 mg/kg total petroleum hydrocarbon(TPH).Fenton-like oxidation eliminated 90.4%of the TPH with a Fe2+׃H2O2 ratio of 1:10 in 5 d compared with 25.8%removal by the activated persulfate method under the same conditions.In washing tests,sodium dodecylbenzenesulfonate and Tween 80 were both unsuitable for TPH washing,while ultrapure water removed 36.1%of TPH in 75 min.Only the Fenton-like oxidation technique met remediation goals based on the screening values of the Guideline for Risk Assessment of Contaminated Sites.The environmental impact and economic assessment of techniques demonstrated the superiority of water washing for dealing with low-degree TPH contamination.

关 键 词：Total petroleum hydrocarbon(TPH) Chemical oxidation Soil washing Environmental risk Soil remediation 

分 类 号：X53[环境科学与工程—环境工程]