泄水区包气带对喹啉的吸附及影响规律研究  

Sorption of quinoline tovadose zone soils obtained from drainage field

作　　者：刘志强[1] 朱遂一[1] 于洪斌[1] 蔺娆 方帅[1] 王健[1] 周康 霍明昕[1] 

机构地区：[1]东北师范大学环境学院,吉林长春130117 [2]中国市政工程东北设计研究总院,吉林长春130021

出　　处：《东北师大学报（自然科学版）》2014年第3期145-149,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51238001;51108069;51008056);中国博士后科学基金特别资助项目(201003529);高等学校博士学科点专项科研基金资助项目(20100043110009)

摘　　要：以喹啉为再生水中代表性有机物,研究了白城市泄水区包气带土壤对再生水中微污染物的吸附过程和影响规律.结果表明:A采样点TOC含量、总盐度以及电导率都随深度的增加而减少;B点整体较为稳定,但中部TOC略低、总盐度及电导率略高.酸性条件下喹啉的吸附强于碱性条件,当pH=6.0时喹啉在土壤中的吸附量最大.Fe3+离子明显抑制喹啉的吸附,而Fe2+离子能够促进喹啉的吸附.当土壤中喹啉和2-羟基喹啉共存时,其产生的协同吸附效应增大了喹啉在土壤中的吸附量.Quinoline, as a typical organic matter in reclaimed water, was used to study the purification ofmicro-organic-polluted water on vadose zone soils obtained from drainage field located at the Southeastof Baicheng city. It was found that the TOC, total salinity and conductivity of sampling point Adecrease with the increase of the depth, but the point B is relatively stable,in the middle solum theTOC slightly low and total salinity and conductivity slightly high. The soil under acidic condition hashigher adsorption capacity than that under alkaline condition, and the maximum adsorption capacity of0. 117 mg/g appeared at pH=6. Ferric iron presented in soil would decrease the sorption capacity,while ferrous iron promoted definitely the sorption of quinoline. When both quinoline and2-hydroxyquinoline were coexistent,the sorption capacity of quinoline increased due to the synergistic adsorption.

关 键 词：包气带 喹啉 2-羟基喹啉 吸附 解吸 

分 类 号：X53[环境科学与工程—环境工程]