%0 Journal Article
%T Optimization of the biosorption of Pb2+ by citron peel using response surface methodology<br>基于响应面优化条件下柚皮对Pb2+的吸附
%A LI Lu
%A YANG Zhaohui
%A SUN Peishi
%A HUANG Jing
%A ZENG Guangming
%A ZHOU Changsheng
%A <br>李璐
%A 杨朝晖
%A 孙珮石
%A 黄兢
%A 曾光明
%A 周长胜
%J 环境科学学报
%D 2009
%I 
%X Plackett-Burman (P-B) design and Central Composite Design (CCD) were applied to optimize 6 factors for the biosorption of Pb2+ by citron peel. The P-B design and its following statistical analysis indicate that the pH, initial Pb(II) concentration, and adsorbent dosage were the 3 key factors significantly influencing Pb2+ removal. Considering biosorption as the response objective, a quadratic model was obtained by CCD for the 3 factors by analysis of response surface optimization. At the optimal biosorption conditions, i.e. pH 5.4, initial Pb2+ concentration 265.86 mg·L-1 and adsorbent dosage 2.56 g·L-1, the Pb2+ removal achieved 92.47% or 96.01 mg·g-1. Citron peel does not need any chemical pre-treatment and the effect is better than most other natural biosorbents. In this study, the results show that citron peel biosorbent is a potential environmentally-friendly material which can be applied in wastewater treatment with low cost.
%K citron peel
%K biosorption
%K Plackett-Burman design
%K central composite design
%K response surface optimization<br>柚皮
%K 吸附率
%K Plaekett-Burman设计
%K 中心复合设计
%K 响应面优化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=AA6E8C0A408980FB9D3C990A6C2CADC2&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=DF92D298D3FF1E6E&sid=30D259683AC50F0D&eid=1E0D46E7B42E2E81&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=2&reference_num=23