Removal of cadmium from metal processing wastewaters by reverse osmosis

C. Stewart Slater, Albert Ferrari, Peter Wisniewski

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Reverse osmosis has effectively been utilized to remove cadmium from a metal processing waste stream. Experimentation with a thin-film composite membrane reduced cadmium concentrations from 165 to 0.003 mg/L under optional processing conditions. Concentrations of other metals and overall conductivity were rejected in excess of 98%. Rejection efficiency and production rate were increased by an increase in system operating pressure. Cadmium was effectively concentrated in a batch concentration study while generating high quality water for process reuse. Membrane fouling is a problem if proper in-line prefiltration is not utilized. Reverse osmosis appears to be an effective alternative to other more traditional treatment methodologies.

Original languageEnglish (US)
Pages (from-to)707-728
Number of pages22
JournalJournal of Environmental Science and Health . Part A: Environmental Science and Engineering
Volume22
Issue number8
DOIs
StatePublished - Dec 1 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Pollution

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