退役油制气场地原位燃气热脱附应用效果  

Study on application effect of in-situ gas thermal remediation in decommissioned oil-to-gas production site

作　　者：马迅 杨超 翁群强 刘志阳 MA Xun;YANG Chao;WENG Qunqiang;LIU Zhiyang(Jiangsu DDBS Environmental Remediation Co.,Ltd.)

机构地区：[1]江苏大地益源环境修复有限公司

出　　处：《环境工程技术学报》2023年第1期280-286,共7页Journal of Environmental Engineering Technology

基　　金：国家重点研发计划项目(2019YFC1804004)。

摘　　要：燃气热脱附技术是一种适用于有机污染土壤高效热修复的技术。以某退役油制气场地污染土壤原位燃气热脱附项目为例,探讨了土壤修复目标温度,土壤、废水和废气中污染物浓度随原位燃气热脱附修复加热时间的变化。结果表明:加热修复结束时,不同土层的温度都最终达到或接近目标温度;在不同时间段、不同温度下相同或相近修复区域土壤中污染物浓度均处于较低水平,污染物去除率在95.45%以上;废水、废气处理工艺处理效果显著,污染物的去除率为98.5%~99.8%。研究显示,原位燃气热脱附修复技术具备进行大规模实际运用的理论条件。Gas thermal remediation technology(GTR)is an efficient technology to clean up organic contaminants from soil.A case study using GTR in a decommissioned oil-to-gas facility site was introduced.The changes of remediation target temperature,and concentrations of contaminants(COC)in soil,waste water and waste gas with the heating time of in-situ GTR were discussed.The results showed that the temperature of different soil layers finally reached or approached the target temperature at the end of thermal remediation.The COC in soil in the same or similar target areas was at a low level at different time periods and temperatures,and the removal rate reached above 96%.The removal rate of contaminants in waste water and waste gas reached 98.5%-99.8%and the above treatment processes were highly effective.The case study had proved that in-situ GTR could be applied on a large scale.

关 键 词：燃气热脱附 目标温度 特征污染物 去除率 

分 类 号：X53[环境科学与工程—环境工程]