有机膨润土吸附水中萘胺、萘酚的性能及其应用  

THE PROPERTIES FOR ORGANOBENTONITES TO ADSORB NAPHTHYLAMINE,NAPHTHOL AND ITS APPLICATION IN WASTEWATER TREATMENT

作　　者：朱利中[1] 李益民[1] 张建英[1] 王珏 

机构地区：[1]杭州大学环境科学系

出　　处：《环境科学学报》1997年第4期445-449,共5页Acta Scientiae Circumstantiae

基　　金：浙江省自然科学基金

摘　　要：分别用溴化十八烷基三甲铵（ＯＴＭＡＢ）、溴化十六烷基三甲铵（ＣＴＭＡＢ）和溴化十二烷基三甲铵（ＤＴＭＡＢ）改性膨润土，研究了有机膨润土吸附水中α萘胺、β萘胺和α萘酚的性能及适宜条件．结果表明，有机膨润土的层间距、对萘胺、萘酚的饱和吸附容量及去除率与改性时所用表面活性剂的碳链长度及表面活性剂在膨润土上的实际交换用量成正相关；有机膨润土对水中萘胺、萘酚的去除率可达９５％左右，其饱和吸附容量也远高于原土．用有机膨润土处理含萘胺、萘酚的废水，效果良好．Three organobentonites were synthesized by placing cation surfactants such as octadecyltrimethylammonium bromide (OTMAB),cetyltrimethylammonium bromide (CTMAB) and dodecyltrimethylammonium bromide (DTMAB) on bentonite.The optimal conditions and properties for organobentonites to adsorb α naphthylamine,β naphthylamine,α naphthol in water were investigated.It was indicated that the interlayer spacing of organobentonites,the removal rates and the saturation adsorbing capacities for organobetonites to treat naphthylamine,naphthol were relative to the length of alkyl chain and the amounts of cation surfactants exchanged on the bentonite.The saturation adsorbing capacities and the removal rates for organobentonites to treat naphthylamine,naphthol in water were more than that for the original bentonite.The removal rates of naphthylamine and naphthol from wastewater by organobentonites were more than 93%.The authors also studied the possibility of recycling organobentonites for wastewater treatment.

关 键 词：膨润土 萘胺 萘酚 吸附 水处理 

分 类 号：X703[环境科学与工程—环境工程]