吸附苯酚的固定化改性蒙脱土的再生  

Regeneration of fixation modified montmorillonite of phenol adsorption

作　　者：宋红波[1] 杨柳燕[1] 肖琳[1] 邹迪[1] 史小丽[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《中国环境科学》2004年第2期139-141,共3页China Environmental Science

基　　金：国家自然科学基金资助项目(29779014);江苏省环境保护厅资助项目(9710)

摘　　要：在固定化改性蒙脱土对苯酚吸附的研究基础上,进一步对固定化改性蒙脱土进行了碱性条件和微生物条件下的再生,并检测再生的效果.碱性再生后固定化改性蒙脱土的吸附能力有一定程度下降.微生物再生效果好于碱性再生,在高效脱酚的瓶形酵母菌(Pityrosporum sp.)作用下,吸附在固定化改性蒙脱土上的苯酚降解率为98.6%,从而达到再生的目的.Hexadecyl timethyl bromammonia (HDTMA)-modified montmorillonite fixated with polyvinyl alcohol (PVA) has very strong adsorption ability of phenol. Under alkaline and microbial conditions the fixation modified montmorillonite was further regenerated, based on the study of its adsorption of phenol; and the regeneration effect was detected. After alkaline regeneration, the adsorption ability of the regenerated, fixation modified montmorillonites reduced to a certain degree. Microbial regeneration effect was better than alkaline regeneration; under the action of Pityrosporum sp. of highly effective phenol-degrading, the degradation rate was 98.6% for the phenol adsorbed on the fixation modified montmorillonites, thus reaching the aim of regeneration.

关 键 词：改性黏土 固定化 吸附 苯酚 再生 瓶形酵母菌 

分 类 号：X131.3[环境科学与工程—环境科学]