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Sodium adsorption using activated alumina for application in the dairy industry

Wang, Mei D., Palmowski, Laurence and Baskaran, Kanagaratnam 2005, Sodium adsorption using activated alumina for application in the dairy industry, in IWA-ASPIRE 2005 : Wastewater management and environmental protection in Asia, selected proceedings of ASPIRE 2005, the 1st International Water Association - Asia Pacific Group conference & exhibition, IWA Publishing, London, England.

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Title Sodium adsorption using activated alumina for application in the dairy industry
Author(s) Wang, Mei D.
Palmowski, Laurence
Baskaran, Kanagaratnam
Conference name International Water Association. Asia Pacific Regional Group. Conference (1st : 2005 : Singapore)
Conference location Singapore
Conference dates 10-15 July 2005
Title of proceedings IWA-ASPIRE 2005 : Wastewater management and environmental protection in Asia, selected proceedings of ASPIRE 2005, the 1st International Water Association - Asia Pacific Group conference & exhibition
Editor(s) Paw, T. G.
Publication date 2005
Conference series International Water Association Asia Pacific Regional Group Conference
Publisher IWA Publishing
Place of publication London, England
Keyword(s) activated alumina
sodium
dairy wastewaters
equilibrium absorption
kinetic absorption
brines
Summary Basic activated alumina with negatively charged surface is considered as a potential adsorbent for a targeted molecule with positive polarity. Adsorption of sodium by basic activated alumina was investigated as a method for desalting dairy waste streams, in which sodium ion concentration averaged 600 mg/L. Sodium equilibrium and kinetic adsorption were investigated using basic activated alumina with synthetic brines. The results of equilibrium adsorption show that uptake of sodium by activated alumina is significantly higher when the pH is greater than 8 and increases as the pH of the brines increases until pH reaches around 10. The results of kinetic adsorption show that 90 hours were needed to reach equilibrium for sodium adsorption. Binding and diffusion processes are suggested to have taken place within the activated alumina.
ISBN 9781843395645
1843395649
Language eng
Field of Research 090703 Environmental Technologies
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2005, IWA Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30005758

Document type: Conference Paper
Collections: School of Engineering and Technology
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