摘要
利用高温焙烧法对膨润土进行改性,探究改性膨润土用量、吸附温度以及pH对改性膨润土吸附废水中镍离子性能的影响,并对吸附过程动力学进行研究.结果表明:改性膨润土用量为0.25g、吸附时间60min、pH为7、吸附温度为45℃,改性膨润土吸附镍离子过程更符合准二级动力学模型.
Bentonite was modified by calcination at high temperature,effects of dosage of modified bentonite, adsorption temperature and pH were investigated,in addition,adsorption kinetics was also researched. The results indicated that the dosage of modified bentonite was 0.25 g,time of adsorption was 60 min,pH was 7,and temperature of adsorption was 45 ℃,the adsorption process of nickel ion on modified bentonite was more suitable with the pseudo second-order model.
作者
张德谨
刘赛
沈健
叶春子
谢永
史洪伟
ZHANG De-jin;LIU Sai;SHEN Jian;YE Chun-zi;XIE Yong;SHI Hong-wei(School of Chemistry & Chemical Engineering,Suzhou University,Suzhou Anhui 234000,China)
出处
《德州学院学报》
2019年第2期20-23,共4页
Journal of Dezhou University
基金
安徽省高校自然科学重点项目(KJ2017A435)
安徽省大学生创新创业训练项目(201710379130)
宿州学院科研平台开放课题(2016ykf03)
宿州学院重点科研项目(2017yzd12)
安徽省质量工程项目(2017xgkxm50)
关键词
焙烧
丁二酮肟
膨润土
镍离子
calcination
dimethylglyoxime
bentonite
nickel ion
