Effects of metallic cations on desorption of phenanthrene and fluoranthene from long-term contaminated soil particles

被引：2

作者：

Chen, Gang ^{[1
]}

Cheng, Lirong ^{[1
]}

Ding, Aizhong ^{[1
]}

Jiang, Lin ^{[2
]}

机构：

[1] Beijing Normal Univ, Coll Water Sci, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100875, Peoples R China

[2] Beijing Municipal Res Inst Environm Protect, Beijing 100037, Peoples R China

来源：

SECOND SREE CONFERENCE ON CHEMICAL ENGINEERING (CCE 2011) | 2011年 / 18卷

关键词：

Desorption; Metallic cation; Hard acid; Borderline acid; Soft base; Borderline base; PAH; KINETICS; SORPTION;

D O I：

10.1016/j.proeng.2011.11.066

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study investigate the role of metallic cations on desorption level of phenanthrene and fluoranthene from long-term contaminated soil particles. Based on Pearson principle and calculation results of Gauss03 software, phenanthrene is soft base and fluoranthene is borderline base. Phenanthrene and fluoranthene desorption could be improved by Ba2+, Al3+, Ca2+ acidic cations, but the tendency decreases with the metallic cations hardness. Hg2+, Ag+ played an inhibition role on the target pollutions desorption. Compared with the other two metallic cation types, borderline acidic metallic cations can be considered as the first choice to promote the targets desorption from the long-term contaminated soil particles. (C) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Society for Resources, Environment and Engineering

引用

页数：6