Abstract
The continuous removal of toxichexavalent chromium from contaminated solutions by means of a graphite felt based electrochemical column was studied. The process is based on anin 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.
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Abda, M., Gavra, Z. & Oren, Y. Removal of chromium from aqueous solutions by treatment with fibrous carbon electrodes: column effects. J Appl Electrochem 21, 734–739 (1991). https://doi.org/10.1007/BF01034054
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DOI: https://doi.org/10.1007/BF01034054