Browse > Article
http://dx.doi.org/10.4491/eer.2012.17.2.065

Desorption and Regeneration Characteristics for Previously Adsorbed Indium Ions to Phosphorylated Sawdust  

Kwon, Taik-Nam (Department of Biochemical Engineering, Gangneung-Wonju National University)
Jeon, Choong (Department of Biochemical Engineering, Gangneung-Wonju National University)
Publication Information
Environmental Engineering Research / v.17, no.2, 2012 , pp. 65-67 More about this Journal
Abstract
The desorption characteristics of previously adsorbed indium ions on phosphorylated sawdust were tested by various chemical reagents such as HCl, $HNO_3$, NaCl, ethylenediaminetetraacetic acid, and nitrilotriacetic acid. Among them, HCl was chosen as the best desorbing agent in terms of economics. The desorption efficiency of HCl for indium ions was about 97% at a concentration of 0.5 M. The desorption efficiency for indium ions was very high at about 94% even at a solid/liquid ratio of 10.0, and the desorption process was quickly performed within 60 min. The removal efficiency of indium ions in recycled phosphorylated sawdust could be maintained at 85% in the 4th cycle.
Keywords
Desorption; Indium ions; Recovery; Regeneration; Sawdust;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 Beolchini F, Pagnanelli F, Toro L, Veglio, F. Biosorption of copper by Sphaerotilus natans immobilized in polysulfone matrix: equilibrium and kinetic analysis, Hydrometallurgy 2003;70:101-112.   DOI   ScienceOn
2 Sekhar KC, Kamala CT, Chary NS, Sastry AR, Rao TN, Vairamani M. Removal of lead from aqueous solutions using an immobilized biomaterial derived from a plant biomass. J. Hazard. Mater. 2004;108:111-117.   DOI   ScienceOn
3 Choong J, Kwon TN. Selective adsorption for indium(III) from industrial wastewater using chemically modified sawdust. J. Ind. Eng. Chem. 2012; In press.
4 Dawson RM, Elliott DC, Elliott WH, Jones KM. Data for biochemical research. 3rd ed. Oxford: Clarendon Press; 1986.
5 Volesky B. Biosorption of heavy metals. Boca Raton: CRC Press; 1990.
6 Mustafa G, Singh B, Kookana RS. Cadmium adsorption and desorption behavior on goethite at low equilibrium concentrations: effects of pH and index cations. Chemosphere 2004;57:1325-1333.   DOI   ScienceOn
7 Jeon C, Park KH. Adsorption and desorption characteristics of mercury(III) ions using aminated chitosan bread. Water Res. 2005;39:3938-3944.   DOI   ScienceOn
8 Gupta S, Babu BV. Removal of toxic metal Cr(VI) from aqueous solutions using sawdust as adsorbent: equilibrium, kinetics and regeneration studies. Chem. Eng. J. 2009;150:352- 365.   DOI   ScienceOn