African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12486

Full Length Research Paper

Enhanced electroforced sedimentation of various solid-liquid systems

Mohammed S. Jami1*, Masashi Iwata2, Suleyman A. Muyibi1, Mohd Ismail Abd. Karim1, Ma’an Fahmi R. Al-Khatib1 and Mujeli Mustapha1
1Bioenvironmental Research Group (BERU), Department of Biotechnology Engineering, International Islamic University Malaysia, Malaysia. 2Department of Chemical Engineering, Graduate School of Engineering, Osaka Prefectural University, Japan
Email: [email protected]

  •  Accepted: 07 November 2011
  •  Published: 16 December 2011

Abstract

This study presents the results of experimental work carried out to evaluate the role of polyacrylamide as dewatering aid in electroforced sedimentation. Electroforced sedimentation experiments under constant electric current density of zinc oxide and kaolin suspended in aqueous media with and without polyacrylamide were carried out and comparison was made between the experimental results and model predictions. The model solution of basic differential equation was used to measure the progress of electroforced sedimentation, represented by an average consolidation ratio Uc as in mechanical expression. The addition of polyacrylamide as a dewatering aid enhanced the electroforced sedimentation.

 

Key words: Electroforced sedimentation, consolidation coefficient, electro-osmotic pressure.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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