原油在土壤中的吸附和解吸研究  

Adsorption and Desorption of Crude oil in Soils

作　　者：李静[1] 张甲耀[1] 夏盛林[1] 马瑛[1] 

机构地区：[1]武汉大学环境科学系,430072

出　　处：《环境科学与技术》1997年第4期5-8,共4页Environmental Science & Technology

摘　　要：用振荡平衡法研究了原油在土壤中的吸附和解吸行为，测得了吸附常数，给出了吸附等温线。结果表明，Linear吸附关系可较好地描述原油在土壤中的吸附状况；土壤有机质含量影响原油的吸附量；其解吸行为则明显受到溶液pH的影响，表面活性剂的加入有助于原油解吸。A Study on the adsorption and desorption of crude oil in solls was performed with a shake equilibrium rnethod. Adsorption constants and adsorption isotherm were obtained. The results indicated that Linear equation y= A+Bx better fitted the adsorption of crude oil in soils and confirmed the importance of soil organic matter for adsorption of crude oil. While the desorption of crude oil was markedly affected by the solu tion pH value. Also, surfactant was intributed to the desorption of crude oil.

关 键 词：原油 吸附 解吸 

分 类 号：X740.3[环境科学与工程—环境工程]