Application of carbon foam for heavy metal removal from industrial plating wastewater and toxicity evaluation of the adsorbent

Chang Gu Lee, Mi Kyung Song, Jae Chun Ryu, Chanhyuk Park, Jae Woo Choi, Sang-Hyup Lee

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Electroplating wastewater contains various types of toxic substances, such as heavy metals, solvents, and cleaning agents. Carbon foam was used as an adsorbent for the removal of heavy metals from real industrial plating wastewater. Its sorption capacity was compared with those of a commercial ion-exchange resin (BC258) and a heavy metal adsorbent (CupriSorb™) in a batch system. The experimental carbon foam has a considerably higher sorption capacity for Cr and Cu than commercial adsorbents for acid/alkali wastewater and cyanide wastewater. Additionally, cytotoxicity test showed that the newly developed adsorbent has low cytotoxic effects on three kinds of human cells. In a pilot plant, the carbon foam had higher sorption capacity for Cr (73.64 g kg-1) than for Cu (14.86 g kg-1) and Ni (7.74 g kg-1) during 350 h of operation time. Oxidation pretreatments using UV/hydrogen peroxide enhance heavy metal removal from plating wastewater containing cyanide compounds.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalChemosphere
Volume153
DOIs
Publication statusPublished - 2016 Jun 1

Keywords

  • Carbon foam
  • Heavy metal removal
  • Industrial plating wastewater
  • Pilot plant test
  • Sorption capacity
  • Toxicity test

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemistry(all)

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