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Desorption and Regeneration Characteristics for Previously Adsorbed Indium Ions to Phosphorylated Sawdust
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  • Journal title : Environmental Engineering Research
  • Volume 17, Issue 2,  2012, pp.65-67
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2012.17.2.065
 Title & Authors
Desorption and Regeneration Characteristics for Previously Adsorbed Indium Ions to Phosphorylated Sawdust
Kwon, Taik-Nam; Jeon, Choong;
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The desorption characteristics of previously adsorbed indium ions on phosphorylated sawdust were tested by various chemical reagents such as HCl, , 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.
Desorption;Indium ions;Recovery;Regeneration;Sawdust;
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