DOI QR코드

DOI QR Code

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)
  • 투고 : 2012.01.31
  • 심사 : 2012.05.11
  • 발행 : 2012.06.30

초록

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.

키워드

참고문헌

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