摘要
以粉煤灰和膨润土为原料,制备了粉煤灰-膨润土复合吸附剂,研究了该复合吸附剂对水中Cr(Ⅵ)的吸附性能,结果表明:在温度为25℃,pH值为4,Cr(Ⅵ)初始质量浓度为22 mg/L,复合吸附剂用量为8 g/L,吸附时间为1 h,Cr(Ⅵ)的去除率可达到91%以上。
A novel compound adsorbent of fly ash and bentonite was synthesized and applied to adsorbing chrornium(Ⅵ). The result showed that the removal ratio of Cr(Ⅵ) was over 91% under the following conditions: pH of waste water 4, initial concentration of Cr(Ⅵ) 22 mg/L, dosage of the adsorbent 8 g/L, adsorption equilibrium time 1 h, temperature 25℃.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2007年第11期1616-1618,共3页
Chemical Industry and Engineering Progress
基金
河南省重点科技攻关项目(072102190009)
郑州航院青年基金项目(Q06E038)
关键词
粉煤灰
膨润土
吸附剂
废水处理
fly ash
bentonite
adsorbent
wastewatertreatment