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http://dx.doi.org/10.5322/JESI.2014.23.9.1583

Preparation of PVA-D2EHPA/TOPO Beads by Immobilizing Extractants D2EHPA and TOPO with PVA and Removal Characteristics of Copper Ions from Aqueous Solution  

Kam, Sang-Kyu (Department of Environmental Engineering, Jeju National University)
Park, Jeong-Min (Department of Chemical Engineering, Pukyong National University)
Lee, Min-Gyu (Department of Chemical Engineering, Pukyong National University)
Publication Information
Journal of Environmental Science International / v.23, no.9, 2014 , pp. 1583-1591 More about this Journal
Abstract
PVA-D2EHPA/TOPO beads containing two extractants, di-(2-ethylhexyl) phosphoric acid (D2EHPA) and trioctylphoshine oxide (TOPO) were prepared for the removal of copper ions from aqueous solution. The prepared PVA-D2EHPA/TOPO beads were characterized by SEM and FT-IR. The removal characteristics of copper ions by PVA-D2EHPA/TOPO beads was investigated using batch and continuous systems. In batch experiments, the maximum removal capacity calculated from Langmuir isotherm model was 18.6 mg/g and the optimal pH was in the range of 4.5~6. The continuous experiments showed that the removal capacity of copper ions increased with increasing inlet copper ion concentrations and bed heights, but decreased with increasing inlet flow rates.
Keywords
Copper; Di-(2-ethylhexyl) phosphoric acid (D2EHPA); Extraction; Immobilization; Polyvinyl alcohol (PVA); Trioctylphoshine oxide (TOPO);
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Times Cited By KSCI : 1  (Citation Analysis)
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