Charged membrane ultrafiltration of heavy metals from nonferrous metal

D. Bhattacharyya, A. B. Jumawan, R. B. Grieves

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Low-pressure ultrafiltration with negatively charged, noncellulosic membranes is shown to be a feasible process for the treatment and reuse of scrubber blowdown wastewater generated in the primary copper industry. Extensive laboratory-scale ultrafiltration data for actual wastewaters containing various heavy metals and sulfate are obtained in a thin-channel unit and are used to establish optimum values of the operational parameters. The design of a full-scale process (2.2 x 106 l/day of wastewater), involving the optimum tapered module arrangement and multiple-pass water reuse, is established by computer simulation and recursive mass balance equations. Ninety-five percent water recovery and 73 to 97% removal of dissolved heavy metals (As, Se, Cu, Cd, Zn, Pb, Fe and Hg) and sulfate can be obtained with 2.9 x 103 m2 of membrane area at 5.6 x 105 N/m2 transmembrane pressure.

Original languageEnglish
Pages (from-to)176-186
Number of pages11
JournalUnknown Journal
Volume51
Issue number1
StatePublished - 1979

ASJC Scopus subject areas

  • Pollution

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