Cross-Flow Migration of Organic Pollutant (Phenanthrene) in Aquitard
详细信息
- 责任者：Li Xuqian (College of Environmental and Resource Sciences ; Jilin University ; Changchun 130026 ; China) ; Song Shuang
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(3)
- 关键词：有机化合物 ; organic compounds ; 层间越流 ; leakage
- 页码：p.840-846
- 图表：6 illus., 2 tables, 12 refs.
- 分类号：1800
- 出版序号：1423
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
///A high osmotic pressure flow device was used to simulate the flow and contaminant transport processes through the aquitard. The concentration of the organic pollutant (phenanthrene) through saturation clay layer was studied with different degrees of mineralization and pH conditions. The results show that the increase of degree of mineralization can encourage the adsorption of phenanthrene leachate in the aquitard; sodium ions in the soil layer, so that Ca2+ and Mg2+ in the water increase, HCO-3 participate the formation of complexes with phenanthrene. The migration ability of phenanthrene is very weak in the aquitard, the decay rate is 82%～96%; under hyper osmotic pressure, the migration speed of the phenanthrene front is about 0.714 m/d. When pH=8, the migration concentration of phenanthrene through the aquitard is the smallest.