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 language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Chemosphere |
| Volume | 153 |
| DOIs | |
| State | Published - 1 Jun 2016 |
Bibliographical note
Funding Information:This research was supported by the Korea Ministry of Environment ( MOE ) as an “Advanced Technology Program for Environmental Industry” (Grant no. 2014000150018 ), and by the National Research Foundation of Korea Grant funded by the Korean Government ( MSIP ) (2015, University-Institute cooperation program).
Publisher Copyright:
© 2016 Elsevier Ltd.
Keywords
- Carbon foam
- Heavy metal removal
- Industrial plating wastewater
- Pilot plant test
- Sorption capacity
- Toxicity test