Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis | |
Liping Deng; Yingying Su; Hua Su; Xinting Wang; Xiaobin Zhu | |
2007-05-08 | |
发表期刊 | JOURNAL OF HAZARDOUS MATERIALS |
ISSN | 0304-3894 |
卷号 | 143期号:1-2页码:220-225 |
文章类型 | Article |
摘要 | Biosorption is an effective method to remove heavy metals from wastewater. In this work, adsorption features of Cladophora fascicularis were investigated as a function of time, initial pH, initial Pb(II) concentrations, temperature and co-existing ions. Kinetics and equilibria were obtained from batch experiments. The biosorption kinetics followed the pseudo-second order model. Adsorption equilibria were well described by the Langmuir and Freundlich isotherm models. The maximum adsorption capacity was 198.5 mg/g at 298 K and pH 5.0. The adsorption processes were endothermic and the biosorption heat was 29.6 kJ/mol. Desorption experiments indicated that 0.01 mol/L Na(2)EDTA was an efficient desorbent for the recovery of Pb(II) from biomass. IR spectrum analysis suggested amido or hydroxy, C=O and C-O could combine intensively with Pb(II). (C) 2006 Elsevier B.V. All rights reserved.; Biosorption is an effective method to remove heavy metals from wastewater. In this work, adsorption features of Cladophora fascicularis were investigated as a function of time, initial pH, initial Pb(II) concentrations, temperature and co-existing ions. Kinetics and equilibria were obtained from batch experiments. The biosorption kinetics followed the pseudo-second order model. Adsorption equilibria were well described by the Langmuir and Freundlich isotherm models. The maximum adsorption capacity was 198.5 mg/g at 298 K and pH 5.0. The adsorption processes were endothermic and the biosorption heat was 29.6 kJ/mol. Desorption experiments indicated that 0.01 mol/L Na(2)EDTA was an efficient desorbent for the recovery of Pb(II) from biomass. IR spectrum analysis suggested amido or hydroxy, C=O and C-O could combine intensively with Pb(II). (C) 2006 Elsevier B.V. All rights reserved. |
关键词 | Biosorption Lead (Ii) Cladophora Fascicularis Wastewater Desorption |
学科领域 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
DOI | 10.1016/j.jhazmat.2006.09.009 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000246465800029 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/6046 |
专题 | 海洋生物技术研发中心 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liping Deng,Yingying Su,Hua Su,et al. Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis[J]. JOURNAL OF HAZARDOUS MATERIALS,2007,143(1-2):220-225. |
APA | Liping Deng,Yingying Su,Hua Su,Xinting Wang,&Xiaobin Zhu.(2007).Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis.JOURNAL OF HAZARDOUS MATERIALS,143(1-2),220-225. |
MLA | Liping Deng,et al."Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis".JOURNAL OF HAZARDOUS MATERIALS 143.1-2(2007):220-225. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
deng-Sorption and de(347KB) | 限制开放 | -- | 浏览 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论