南京大学学报（自然科学版）2024，Vol.60Issue(1)：141-150,10.DOI:10.13232/j.cnki.jnju.2024.01.014
非离子及两性型碳氢表面活性剂对全氟辛酸在土壤中迁移的影响
Effects of nonionic and amphiphilic hydrocarbon surfactants on the transport of perfluorooctanoic acid in soils
摘要
Abstract
The extensive use of perfluorooctanoic acid(PFOA)leads to its widespread coexistence with kinds of hydrocarbon surfactants in the subsurface environment,which has posed potential risks to human health and ecological security.In this study,column experiments were conducted to explore the effect of nonionic hydrocarbon surfactant alkyl polyglycoside(APG)and amphiphilic surfactant dodecyl dimethyl betaine(BS-12)on the transport of PFOA in two saturated soils under different ionic strength.The results showed that APG could promote the transport of PFOA due to its competitive adsorption with PFOA on the soil surface.BS-12 could inhibit the transport of PFOA by neturalizing the negative charge on soil surface and hydrophobic interaction.Therefore,the effects coexisting hydrocarbon surfactants should be considered when predicting and evaluating the transport behavior of PFOA in soils.关键词
全氟辛酸/非离子表面活性剂/两性表面活性剂/土壤性质Key words
perfluorooctanoic acid/nonionic surfactant/amphiphilic surfactant/soil properties分类
资源环境引用本文复制引用
张庆泉,赵燕鹏,蔡兴,张琦,郭红岩,孙媛媛..非离子及两性型碳氢表面活性剂对全氟辛酸在土壤中迁移的影响[J].南京大学学报（自然科学版）,2024,60(1):141-150,10.基金项目
国家自然科学基金(42077109) （42077109）
