纤维素-甲壳素吸附剂对水体中Pb的去除效应研究  

The Removal of Aquatic Lead by Cellulose and Chitin Complex Adsorbent

作　　者：刘金苓[1] 黄华[1] 刘韵达[1] 

机构地区：[1]广州市环境保护科学研究院,广州510620

出　　处：《广州环境科学》2012年第1期16-19,共4页Guangzhou Environmental Science

摘　　要：以纤维素和甲壳素为基本材料,合成了一种适用于水体Pb污染处理的纤维素-甲壳素吸附剂。研究了纤维素-甲壳素吸附剂投加量、吸附时间、水体pH值、Pb初始浓度等条件下该吸附剂对水体中Pb的去除效率。同时,采用Langmuir模型拟合该吸附剂对水体中Pb的最大吸附容量。结果表明:纤维素-甲壳素吸附剂最佳使用条件为该吸附剂投加量2g/L,水体pH值3～6,吸附时间1h以上,该吸附剂对水体中Pb的最大吸附量为50.76mg/g,可用于Pb污染水体的控制。A new adsorbent based on the cellulose and chitin was synthesized. The effects of relevant factors including the pH of solution, amount of adsorbent, reaction time and initial Pb concentration on the lead removal were studied in detail. Results showed that, the optimal conditions were 2 g/L of amount, over 1 hour of reaction time, and pH at 3~6. The maximum adsorption capacity of Pb by the synthesized adsorbent was 50.76 mg/g. The adsorbent is suitable for the remediation of lead contaminated wastewater.

关 键 词：纤维素 甲壳素 PB 吸附 

分 类 号：X145[环境科学与工程—环境科学]