Charged membrane ultrafiltration of heavy metal salts: Application to metal recovery and water reuse

Dibakar Bhattacharyya, David P. Schaaf, Robert B. Grieves

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

An experimental investigation is presented of the thin‐channel ultrafiltration of 0.6 × 10−3 M to 15.0 × 10−3 M aqueous solutions of Cu2+, Ni2+, or Zn2+ sulfate or chloride salts through a negatively‐charged, non‐cellulosic membrane. Multi‐salt solutions and the actual rinse water from a Watts‐type‐nickel‐plating process are also ultrafiltered. The membrane provides a Ni2+ rejection of 0.83 and water flux of 1.0 × 103 cm/sec (23 gal/ft2 day) at a transmembrane pressure difference of 4.0 × 105 N/m2 (3.9 atm). The membrane rejection and water flux data are utilized in a computer simulation procedure for scale‐up to a multi‐module, two‐staged process for the closed‐loop operation of a plating plant.

Original languageEnglish
Pages (from-to)185-189
Number of pages5
JournalThe Canadian Journal of Chemical Engineering
Volume54
Issue number3
DOIs
StatePublished - Jun 1976

ASJC Scopus subject areas

  • Chemical Engineering (all)

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