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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
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume143Issue:1-2Pages:220-225
SubtypeArticle
AbstractBiosorption 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.
KeywordBiosorption Lead (Ii) Cladophora Fascicularis Wastewater Desorption
Subject AreaEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
DOI10.1016/j.jhazmat.2006.09.009
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000246465800029
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/6046
Collection海洋生物技术研发中心
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
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.
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