Journal of Applied Electrochemistry

, Volume 37, Issue 11, pp 1329–1335

Electrochemical pre-treatment of effluents containing chlorinated compounds using an adsorbent

Original Paper

DOI: 10.1007/s10800-007-9376-3

Cite this article as:
Brown, N.W. & Roberts, E.P.L. J Appl Electrochem (2007) 37: 1329. doi:10.1007/s10800-007-9376-3

Abstract

Electrochemical pre-treatment of industrial wastewater to remove refractory and/or toxic organic components, making them more amenable to biological treatment, is likely to be more cost-effective than using a physical or chemical process for complete organic removal. This paper demonstrates the use of a carbon-based adsorbent material that preferentially removes chlorinated organic compounds. Electrochemical regeneration of the adsorbent is shown to be a quick, easy and cheap process, because the adsorbent is both highly electrically conducting and non-porous. High regeneration rates over a number of cycles were obtained by passing a charge of 25 C g−1 through a bed of adsorbent particles, at a current density of 20 mA cm−2 for 10 min. The energy required to remove a kg of COD from an industrial wastewater was calculated to be 27 kWh.

Keywords

NyexPreferential adsorptionPhenolChlorinated phenolsElectrochemical regenerationPre-treatmentIndustrial wastewater

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.School of Chemical Engineering and Analytical SciencesUniversity of ManchesterManchesterUK