油气田环境保护2024，Vol.34Issue(4)：34-37,4.DOI:10.3969/j.issn.1005-3158.2024.04.007
某有机污染场地土壤异味筛查和修复试验
Screening and Remediation Test of Soil Odor in an Organic Contaminated Site
摘要
Abstract
The Volatile Organic Compounds(VOCs)in the soil odors produced from an organic contaminated site were determined by purge and trap/gas chromatography-mass spectrometry.The results showed that the main source of odor was 2-chlorotoluene.The odor treatment and remediation tests were carried out by four methods including natural volatilization,calcium oxide assisted heating and volatilization,hydrogen peroxide oxidation and sodium persulfate/calcium oxide oxidation.The results indicated that the odor removal rate by natural volatilization could reach more than 90%at room temperature,while the other three methods could improve the removal rate to a certain extent(4%～7%).But 2-chlorotoluene was difficult to be completely degraded by oxidation reaction and o-chlorobenzaldehyde was generated.Therefore,in-situ agitation and gas gathering or in-situ natural volatilization treatment was recommended to treat the odor,and on-site coverage or deodorization technology was used to prevent and control odor escape and secondary pollution during site excavation.关键词
土壤异味/2-氯甲苯/异味修复Key words
soil odor/2-chlorotoluene/odor remediation分类
资源环境引用本文复制引用
吴倩,曾荣,孙捷,韩培思,刘晓丹,陈丽杰,朱忠志..某有机污染场地土壤异味筛查和修复试验[J].油气田环境保护,2024,34(4):34-37,4.基金项目
国家重点研发计划,污染场地挥发类有机污染物传输机制与扩散通量项目"复杂场地挥发类有机污染物多相传输扩散的环境风险评估及量化表征"(2020YFC1807103). （2020YFC1807103）
