Biosorption of lead and copper from aqueous solutions by pre-treated crab and arca shell biomass

被引:97
作者
Dahiya, Sudhir [1 ]
Tripathi, R. M.
Hegde, A. G.
机构
[1] Bhabha Atom Res Ctr, Div Hlth Phys, Environm Studies Program, Bombay 400085, Maharashtra, India
[2] Bhabha Atom Res Ctr, Environm Assessment Div, Bombay 400085, Maharashtra, India
关键词
lagergren; langmuir; freundlich isotherm; adsorption free energy; halls separation factor;
D O I
10.1016/j.biortech.2006.11.011
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Sorption potential of pretreated crab and area shell biomass for lead and copper from aqueous media was explored. The effects of pH, initial concentration, biosorbent dosage and contact time were studied in batch experiments. Effects of common ions like sodium, potassium, calcium and magnesium on the sorption capacity of pretreated crab and arca biomasses were also studied. At equilibrium, the maximum uptake by crab shell biomass was 19.83 +/- 0.29 and 38.62 +/- 1.27 mg/g for lead and copper, respectively. In case of arca shell biomass the maximum uptake capacity was 18.33 +/- 0.44 mg/g and 17.64 +/- 0.31 mg/g for lead and copper, respectively. Combined effect of all the common ions up to 50 mu g/ml concentration was negligible for both the metals using both biomasses. Sorption isotherms were studied to explain the removal mechanism of both elements by fitting isotherms data into Lagergren, Freundlich and Langmuir equations. (C) 2006 Published by Elsevier Ltd.
引用
收藏
页码:179 / 187
页数:9
相关论文
共 21 条
[1]  
Bai RS, 2003, BIORESOURCE TECHNOL, V87, P17, DOI 10.1016/S0960-8524(02)00222-5
[2]   Response surface optimization of the removal of nickel from aqueous solution by cone biomass of Pinus sylvestris [J].
Can, Mevra Yalvac ;
Kaya, Yusuf ;
Algur, O. Faruk .
BIORESOURCE TECHNOLOGY, 2006, 97 (14) :1761-1765
[3]   Aqueous speciation of sulfuric acid-cupric sulfate solutions [J].
Casas, JM ;
Alvarez, F ;
Cifuentes, L .
CHEMICAL ENGINEERING SCIENCE, 2000, 55 (24) :6223-6234
[4]  
*CENTR POLL CONTR, 1993, GEN STAND DISCH ENV
[5]   Sorption of zinc and lead on coir [J].
Conrad, Kathrine ;
Hansen, Hans Christian Bruun .
BIORESOURCE TECHNOLOGY, 2007, 98 (01) :89-97
[6]  
DAHIYA S, 2005, ENV GEOCHEM, V8, P349
[7]  
FAUST SD, 1987, BUTTERWORTHS, P15
[8]  
FERGUSON MR, 1989, P 1989 SME S BIOT MI, V24, P201
[9]  
Gupta R, 2000, CURR SCI INDIA, V78, P967
[10]   PORE- AND SOLID-DIFFUSION KINETICS IN FIXED-BED ADSORPTION UNDER CONSTANT-PATTERN CONDITIONS [J].
HALL, KR ;
EAGLETON, LC ;
ACRIVOS, A ;
VERMEULEN, T .
INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1966, 5 (02) :212-+