Sahoo, Ganesh Chandra and Halder, Rupa and Jedidi, Ilyes and Oun, Abdallah and Nasri, Hassen and Roychoudhurry, Piyali and Majumdar, Swachchha and Bandyopadhyay, Sibdas and Ben Amar, Raja (2016) Preparation and characterization of microfiltration apatite membrane over low cost clay-alumina support for decolorization of dye solution. Desalination and Water Treatment , 57 (57). pp. 27700-27709. ISSN 1944-3994

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Apatite material obtained from natural sources of Tunisian mineral has been used for the development of membrane over clay-alumina-based microporous supports. For this purpose, supports of single-channel and 19-channel circular configurations were used. The apatite powder used for membrane preparation had average pore diameter of 4.02m. Coating formulation has been optimized to obtain stable suspension. Powder loading of 4wt.% was found as optimum for obtaining a proper microfiltration membrane with 0.2m pore diameter. Single-channel membrane was used for characterization. The application to color removal from synthetic reactive dye solution was performed using membrane with 19-channel configuration. An average water flux of 200 and 80l/m(2)h was obtained for 19-channel support and membrane, respectively, in laboratory scale setup. Reactive red dye removal from synthetic dyeing solution was achieved up to 99%. Resulting saturated membrane was successfully regenerated using H2O2 at various concentrations and contact time. Color separation efficiency of the membrane (g/m(2)) has been evaluated as an indicator of membrane regeneration. Moreover, apatite membrane-based separation of reactive red dye has been compared with adsorption using the apatite powder followed by membrane separation. Apatite membrane-based separation was found to be more efficient compared to adsorptive separation using apatite powder.

Item Type: Article
Subjects: Engineering Materials
Divisions: Ceramic Membrane
Depositing User: Bidhan Chaudhuri
Date Deposited: 30 Jan 2017 12:47
Last Modified: 30 Jan 2017 12:47

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