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Removal Characteristics of Cu(II) ion in Aqueous Solution by Solid-Phase Extractant Immobilized D2EHPA and TBP in PVC

D2EHPA와 TBP를 PVC에 고정화한 고체상 추출제를 사용한 수용액 중의 Cu(II) 이온 제거특성

  • Kam, Sang-Kyu (Department of Environmental Engineering, Jeju National University) ;
  • Lee, Song-Woo (Department of Chemical Engineering, Pukyong National University) ;
  • Lee, Min-Gyu (Department of Chemical Engineering, Pukyong National University)
  • Received : 2014.08.29
  • Accepted : 2014.10.23
  • Published : 2015.01.30

Abstract

Removal characteristics of Cu(II) ions by solid-phase extractant immobilized D2EHPA and TBP in PVC were investigated. Cu(II) ion concentrations in the solution and removal capacity of Cu(II) ion according to operation time were compared. The lower the initial concentration of Cu(II) ion in aqueous solution was, the removal capacity of Cu(II) ion by solid-phase extractant was increased relatively. The bigger the initial concentration of Cu(II) ion was, the removal capacity of Cu(II) ion was increased relatively. The pseudo-second-order kinetics according to operation time was showed more satisfying results than the pseudo-first-order kinetics for the removal velocity of Cu(II) ion. The removal capacity of Cu(II) ion was 0.025 mg/g in aqueous solution of pH 2, but the removal capacity of Cu(II) ion was increased to 0.33 mg/g mg/g in aqueous solution of pH 4 according to increasing pH.

Keywords

References

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