Biosorption of lead(II) from aqueous solutions by non-living algal biomass Oedogonium sp and Nostoc sp -: A comparative study

被引:258
作者
Gupta, Vinod K. [1 ]
Rastogi, Arshi [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Roorkee 247667, Uttar Pradesh, India
关键词
biosorption; lead(II); Oedogonium sp; Nostoc sp; kinetics; FTIR;
D O I
10.1016/j.colsurfb.2008.01.019
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Industrial wastewaters containing heavy metals pose a major environmental problem that needs to be remedied. The present study reports the ability of two non-living (dried) fresh water algae, Oedogonium sp. and Nostoc sp. to remove lead(II) from aqueous solutions in batch system under varying range of pH (2.99-7.04), contact time (5-300 min), biosorbent dose (0.1-0.8 g/L), and initial metal ion concentrations (100 and 200 mg/L). The optimum conditions for lead biosorption are almost same for the two algal biomass Oedogonium sp. and Nostoc sp. (pH 5.0, contact time 90 and 70 min, biosorbent dose 0.5 g/L and initial Pb(II) concentration 200 mg/L) however, the biomass of Oedogonium sp. was found to be more suitable than Nostoc sp. for the development of an efficient biosorbent for the removal of lead(II) from aqueous solutions, as it showed higher values of q(e) adsorption capacity (145.0 mg/g for Oedogonium sp. and 93.5 mg/g for Nostoc sp.). The equilibrium data fitted well in the Langmuir isotherms than the Freundlich isotherm, thus proving monolayer adsorption of lead on both the algal biomass. Analysis of data shows that the process involves second-order kinetics and thermodynamic treatment of equilibrium data shows endothermic nature of the adsorption process. The spectrum of FTIR confirms that the amino and carboxyl groups on the surface of algal biomass were the main adsorption sites for lead removal. Both the biosorbents could be regenerated using 0.1 mol/L HCl solution, with upto 90% recovery. The biosorbents were reused in five biosorption-desorption cycles without a significant loss in biosorption capacity. Thus, this study demonstrated that both the algal biomass could be used as an efficient biosorbents for the treatment of lead(II) bearing wastewater streams. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:170 / 178
页数:9
相关论文
共 46 条
[1]   Equilibrium and kinetic modelling of cadmium(II) biosorption by C-vulgaris in a batch system:: effect of temperature [J].
Aksu, Z .
SEPARATION AND PURIFICATION TECHNOLOGY, 2001, 21 (03) :285-294
[2]   Proton and metal binding capacity of the green freshwater alga Chaetophora elegans [J].
Andrade, AD ;
Rollemberg, MCE ;
Nóbrega, JA .
PROCESS BIOCHEMISTRY, 2005, 40 (05) :1931-1936
[3]   Rare earth elements removal by microbial biosorption:: A review [J].
Andrès, Y ;
Texier, AC ;
Le Cloirec, P .
ENVIRONMENTAL TECHNOLOGY, 2003, 24 (11) :1367-1375
[4]   The investigation of lead removal by biosorption: An application at storage battery industry wastewaters [J].
Bahadir, Tolga ;
Bakan, Gulfem ;
Altas, Levent ;
Buyukgungor, Hanife .
ENZYME AND MICROBIAL TECHNOLOGY, 2007, 41 (1-2) :98-102
[5]   Entrapment of Lentinus sajor-caju into Ca-alginate gel beads for removal of Cd(II) ions from aqueous solution:: preparation and biosorption kinetics analysis [J].
Bayramoglu, G ;
Denizli, A ;
Bektas, S ;
Arica, MY .
MICROCHEMICAL JOURNAL, 2002, 72 (01) :63-76
[6]   Biosorption of lead, copper and cadmium by biomass of Pseudomonas aeruginosa PU21 [J].
Chang, JS ;
Law, R ;
Chang, CC .
WATER RESEARCH, 1997, 31 (07) :1651-1658
[7]   NATURE OF BONDING BETWEEN METALLIC-IONS AND ALGAL CELL-WALLS [J].
CRIST, RH ;
OBERHOLSER, K ;
SHANK, N ;
NGUYEN, M .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1981, 15 (10) :1212-1217
[8]  
DAHIYA S, 2007, BIORESOURCE TECHNOL, V143, P220
[9]   Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis:: Equilibrium, kinetics and environmental effects [J].
Deng, Liping ;
Su, Yingying ;
Su, Hua ;
Wang, Xinting ;
Zhu, Xiaobin .
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, 2006, 12 (04) :267-277
[10]   Characterization of PEI-modified biomass and biosorption of Cu(II), Pb(II) and Ni,(II) [J].
Deng, SB ;
Ting, YP .
WATER RESEARCH, 2005, 39 (10) :2167-2177