Removal of copper, nickel and chromium mixtures from metal plating wastewater by adsorption with modified carbon foam

Chang Gu Lee, Soon-Jae Lee, Jeong Ann Park, Chanhyuk Park, Sang Jeong Lee, Song Bae Kim, Byungryul An, Seong Taek Yun, Sang-Hyup Lee, Jae Woo Choi

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

In this study, the characterizations and adsorption efficiencies for chromium, copper and nickel were evaluated using manufacture-grade Fe2O3-carbon foam. SEM, XRD, XRF and BET analyses were performed to determine the characteristics of the material. Various pore sizes (12–420 μm) and iron contents (3.62%) were found on the surface of the Fe2O3-carbon foam. Fe2O3-carbon foam was found to have excellent adsorption efficiency compared to carbon foam for mixed solutions of cationic and anionic heavy metals. The adsorption capacities for chromium, copper and nickel were 6.7, 3.8 and 6.4 mg/g, respectively, which were obtained using a dual exponential adsorption model. In experiments with varying dosages of the Fe2O3 powder, no notable differences were observed in the removal efficiency. In a fixed-bed column test, Fe2O3-carbon foam achieved adsorption capacities for chromium, copper and nickel of 33.0, 12.0 and 9.5 mg/g, respectively, after 104 h. Based on these results, Fe2O3-carbon foam was observed to be a promising material for treatment of plating wastewater.

Original languageEnglish
Pages (from-to)203-211
Number of pages9
JournalChemosphere
Volume166
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Adsorption
  • FeO-carbon foam
  • Heavy metals
  • Metal plating wastewater

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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