Elution of Hg(II) Adsorbed on Highly Porous Polyaminated Chitosan Beads

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Satoru Asai¹  Yoshihide Kawamura¹  Hiroyuki Yoshida¹  Hiroaki Tanibe² 

[1] Department of Chemical Engineering, Osaka Prefecture University;Institute of Research & Development, Fuji Spinning Co., Ltd.

关键词: Mercury;    Chitosan Beads;    Waste Water Treatment;    Recycle Process;    Elution;   

DOI  :  10.1252/jcej.31.115

来源: Maruzen Company Ltd

【 摘 要 】

References(4)Cited-By(11)Recovery of mercury(II) adsorbed on highly porous polyaminated chitosan (PEI-CS) appears to be technically feasible. Desorption experiments of Hg(II) from a PEI-CS packed column were carried out using sulfuric acid solutions of different concentrations at different temperatures. The peak of the elution curve is 250 mol/m3 when the concentration of H2SO4 in the eluent is 1000 mol/m3 at 308 K. The elution curve in PEI-CS is compared with that of Unicellex UR-120H, which is considered the best commercial chelate resin available in Japan for removal of Hg(II). The peak of the elution curve in UR-120H is about one eighth at the same concentration of PEI-CS. The equilibrium isotherm and the breakthrough curve for adsorption of Hg(II) are not affected after repeated cycles of adsorption and desorption.

【 授权许可】

Unknown