常州大学学报（自然科学版）2024，Vol.36Issue(4)：27-36,10.DOI:10.3969/j.issn.2095-0411.2024.04.004
表面活性剂强化空气扰动中气流与表面活性剂迁移行为
Migration behaviors of airflow and surfactant in the surfactant-enhanced air sparging process
摘要
Abstract
Technologies of light transmission visualization and staining tracer were used to investigate the migration behavior of the airflow and surfactant during surfactant enhanced air sparging(SEAS)remediation in the gravel aquifer.Experimental results showed that the air saturation in SEAS was 2.4 times higher than that in AS when the air injection rate was the same within a certain air injection rate.Under different air injection rates,the zone of influence(ZOI)area did not significantly change,and the ZOI presented obvious conical shape,and the air flowrate presented Gaussian distribution.Under the same air injection rate,compared with AS process,the ZOI area slightly increased due to the foam stabilization effect and surfactant redistribution.In addition,the surfactant redistribution in SEAS process increased its action range,but reduced the surfactant concentration in the target zone,which increased the risk of pollution plume expansion.These studies are beneficial to in-depth under-standing the enhanced remediation mechanism of SEAS and improving the VCOs removal efficiency.关键词
表面活性剂/空气扰动/砾石含水层/气流/迁移行为Key words
surfactant/air sparging/gravel aquifer/airflow/migration behavior分类
资源环境引用本文复制引用
姚猛,吕佳仪,陈旭阳,袁迁,薛金娟,王明新..表面活性剂强化空气扰动中气流与表面活性剂迁移行为[J].常州大学学报（自然科学版）,2024,36(4):27-36,10.基金项目
国家自然科学基金青年科学基金项目(42207085) （42207085）
常州市科技计划资助项目(CJ20220160). （CJ20220160）
