摘要
通过室内土柱淋滤实验,探讨石油烃在包气带中的迁移机理。实验研究的结果表明,包气带对石油烃的截取率较高,并且截取率与包气带土的渗透系数、进水浓度、进水时间间隔有关;实验条件下污土释放石油烃类物质的量很小,石油烃释放的水相油浓度随时间呈现先增长后降低的趋势,污土的存放时间越长石油烃的释放量越小。
An experiment was carried out to study the migration mechanism of petroleum hydrocarbons through soil Columns in the aeration zone. The experimental results show that the interception rate of the aeration zone to petroleum hydrocarbons is relatively high, and is related to the permeability coefficient of clay soil, influent concentration as well, as time interval of influent. The results also indicate that the release amount of petroleum pollutants from polluted soil is very small, associating with the deposited time of polluted soil, and that the released oil concentration trends to increase first and then deerease with time.
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2010年第1期84-87,共4页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金(40672158)
关键词
石油烃
包气带
迁移机理
petroleum hydrocarbon
aeration zone
migration mechanism
