摘要
分别利用单因素实验和正交设计实验研究了改性蛭石对汞离子吸附的影响,影响因素包括:蛭石的改性方法、蛭石膨胀温度、蛭石细度、改性剂浓度、吸附时间、吸附温度、pH值、汞离子浓度等。实验结果表明:蛭石经1000℃膨胀,3%的CTMAB改性,细度为100目,溶液pH值为5,蛭石用量为0.1g,室温下吸附30min,汞离子的吸附率最高达到93%左右。说明储量丰富、价格低廉的改性蛭石是处理含汞工业废水的有效途径之一。
The single factor test method and the orthogonal experimental method were applied to study the the adsorption of mercury ion with the modified vermiculite.Influence factors included the modification method of vermiculite,the expansion temperature of vermiculite,the fineness of vermiculite,the concentration of CTMAB,the adsorption time,the adsorption temperature,pH value and the concentration of mercury ion.The results showed that the optimization adsorption conditions of mercury ion were as follows：1000 ℃ expansion,3% CTMAB concentration,100 mesh fineness,pH5,0.1 g amount of vermiculite and 30 min adsorption at room temperature.The adsorption rate of mercury ion was about 93%.Consequently,the modified vermiculite was very useful in treating industrial wastewater containing mercury ion.
出处
《石河子大学学报（自然科学版）》
CAS
2011年第5期613-617,共5页
Journal of Shihezi University(Natural Science)
基金
石河子大学自然科学与技术创新项目(ZRKX2008002)
关键词
蛭石
CTMAB改性
汞离子
吸附
废水处理
Vermiculite
CTMAB modification
mercury ion
adsorption
wastewater treatment
