Removal of cadmium from simulated wastewaters by electrodeposition on stainless steeel tubes bundle electrode

Abbas Hamid Sulaymon, Adel Obaid Sharif, Thana Kamil Al-Shalchi

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17 Citations (Scopus)

Abstract

Electrochemical processes can provide valuable contributions to the protection of the environment through implementation of effluent treatment and production-integrated processes for the minimization of waste and toxic compounds. The performance of a novel pilot scale, fixed bed flow-through cell, consisting of stainless steel tubes bundle cathode, in the removal of cadmium was investigated in the batch re-circulation mode; utilizing the potential results obtained from rotating disc electrode experiments in batch mode. The studied electrochemical reaction was the cathodic reduction of Cd2+ using 0.5 M sodium sulphate as supporting electrolyte. The analyzed parameters were different electrolyte pH, different initial Cd2+ concentrations, and different Reynolds numbers. The tubes bundle consisted of 920 tubes of 0.6 cm outer diameters. The overall empirical mass transfer correlation was found to be: Sh = 0.51 Re0.859 Sc1/3 for 5 < Re < 20 and Sc = 649. Experimental results, analysis and correlations showed good performance of the cell and proved its adequacy in the removal of Cd2+ from simulated effluents.

Original languageEnglish
Pages (from-to)218-226
Number of pages9
JournalDesalination and Water Treatment
Volume29
Issue number1-3
DOIs
Publication statusPublished - May 2011

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Keywords

  • Cadmium
  • Electrochemical
  • Fixed bed flow through cell
  • References
  • Tubes bundle electrode

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

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