Expanded Beds: A Process Solution for Adsorptive Separations in Waste-Water Treatment - Volume 4 Number 6 (Dec. 2013) - IJCEA
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    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
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Editor-in-chief
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan
 

IJCEA 2013 Vol.4(6): 377-381 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2013.V4.329

Expanded Beds: A Process Solution for Adsorptive Separations in Waste-Water Treatment

Yogeshwar N. Thakare and Arun Kumar Jana
Abstract—Most of the commercial adsorptive separation is carried out in fixed bed mode. A clear and steady feed is required for efficient operation of fixed beds. If the feed carries insoluble matter, it gets trapped in the voids and enhances the pressure drop across the bed. So, a solid-liquid stable fluidized bed termed as expanded bed is getting wide applications in the realm of adsorptive separations. Expanded bed operation is based on controlled stable fluidization, which combines the hydrodynamic properties of fluidized bed along with the plug flow behavior of the packed bed. A comparative performance of packed and expanded beds is studied here for adsorptive separation of copper from waste-water. Impact of operating velocity on column performance is studied in the present work. The results show the proper choice of adsorbent and operating conditions can allow for carrying out adsorptive separations in the expanded bed mode for wastewater treatment with minimum impact on bed efficiency.

Index Terms—Expanded bed, fluidization, terminal settling velocity, sedimented bed, copper, waste water.

Yogeshwar N. Thakare is with the Reliance Industries Ltd, Hazira and a part time research scholar in the Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007 India (e-mail: tyogeshwar@gmail.com).
Arun Kumar Jana is with the Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007 India (e-mail: akj@ched.svnit.ac.in).

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Cite: Yogeshwar N. Thakare and Arun Kumar Jana, "Expanded Beds: A Process Solution for Adsorptive Separations in Waste-Water Treatment," International Journal of Chemical Engineering and Applications vol. 4, no. 6, pp. 377-381, 2013.

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