Sarkar, Sandeep and Ghosh, Sourja and Banerjee, Priya and Larbot, Andre and Cerneaux, Sophie and Bandyopadhyay, Sibdas and Bhattacharjee, Chiranjib (2014) Preparation and Characterization of Single Layer Ultra Filtration Alumina Membrane Directly over Porous Clay-Alumina Tubular and Capillary Support for Textile Effluent Treatment. Transactions of the Indian Ceramic Society, 73 (3). pp. 197-204. ISSN 0371-750X

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Abstract

Clay-alumina porous tubular supports of 8/6 mm for outside diameter/inside diameter (OD/ID) were prepared by extrusion and sintering at 145 degrees C for 110 min to obtain an average pore size of 1 mu m and porosity of 40%. Slip casting slurry was prepared by peptization of boehmite (AlO(OH)) powder with 1.5 N nitric acid and mixing it with gamma-Al2O3 powder of 40 nm particle size along with PVA and PEG in determined weight percentage. Clay alumina porous support tubes of 3.1/1.9 and 8/6 mm (OD/ID) were coated with the slip casting slurry and sintered at 550 degrees C for 60 min to obtain gamma-alumina membrane directly over the supports in a single step. The membrane layer prepared over both the support tubes were without any intermediate layer. The membranes presented a pore diameter distribution centered at 7.0 nm on 3.1/1.9 mm (OD/ID) and 5.5 nm on 8/6 mm (OD/ID) supports, which was in ultrafiltration (UF) range. The prepared UF membranes were studied for treatment of bio-treated synthetic and real textile effluent in the side stream mode. About 98% decolorization of synthetic dye solution and 95.6% colour removal of real textile effluent were obtained by the combined effect of UF membrane and bioreactor.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Ceramic Membrane
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Dec 2014 07:30
Last Modified:	16 Dec 2014 07:30
URI:	http://cgcri.csircentral.net/id/eprint/2633

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