摘要
对海泡石原矿进行酸、热联合改性。采用单因素实验,对改性海泡石处理Cu2+、Pb2+、Zn2+多金属废水进行了研究。结果表明,经过0.9 mol/L的盐酸浸泡活化29 h,再经过450℃高温焙烧的改性海泡石,在初始pH为7.0、35℃的条件下,对初始浓度50 mg/L Cu2+、Pb2+、Zn2+的吸附率可达80%以上,吸附特征可用Freundlich吸附等温式很好地模拟。
The natural sepiolite was modified with acid and heating.The Cu2＋,Pb2＋,Zn2＋ mult-metals wastewater was treated by the modified sepiolite through single-factor experiment.The results showed that the concentration of acid was 0.9 mol/L,the time of acid-activation was 29 h,and the temperature of heating-activation was 450 ℃.When initial pH was 7.0,initial temperature was 35 ℃,the removal rates of Cu2＋,Pb2＋,Zn2＋reached above 80%,and the absorptive behavior can be related to the Freundlich isothermal adsorption equation.
出处
《广州化工》
CAS
2011年第21期137-139,共3页
GuangZhou Chemical Industry
关键词
改性
海泡石
多金属
废水
modified
sepiolite
mult-metals
wastewater
