Removal of chromium from aqueous solutions by treatment with fibrous carbon electrodes: column effects

M. Abda, Z. Gavra, Y. Oren

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The continuous removal of toxic hexavalent chromium from contaminated solutions by means of a graphite felt based electrochemical column was studied. The process is based on an in situ generation of appropriate pH gradients which allows both rapid reduction to Cr3+ and its precipitation within the electrode bed. Conditions for the attainment of low (<25 p.p.b.) effluent concentrations as well as longitudinal concentration distribution of the precipitate and maximum loading capacities are presented. Treatment schemes involving two separate columns or a dual function column are also discussed.

Original languageEnglish
Pages (from-to)734-739
Number of pages6
JournalJournal of Applied Electrochemistry
Volume21
Issue number8
DOIs
StatePublished - 1 Aug 1991
Externally publishedYes

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