Title: Suitability of Membrane Bioreactor for treatment of recalcitrant textile dye wastewater utilising white-rot fungi
Authors: Faisal Ibney Hai, Kazuo Yamamoto
Addresses: Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. ' Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
Abstract: A Membrane Bioreactor (MBR) – utilising a mixed microbial community dominated by fungi – was explored for treatment of a synthetic textile dye wastewater containing dye, starch (main contributor to Total Organic Carbon, TOC) and other nutrients. Preliminary batch tests confirmed the superior decolouration capacity of a pure fungus culture due to simultaneous biosorption and biodegradation in contrast to mainly biosorption in case of conventional activated sludge. However, activated sludge demonstrated comparatively faster TOC removal. Interestingly, stable removal of both colour (>99%) and TOC (>98%) was achieved in the MBR. The membrane contributed significantly to the overall dye removal (biosorption, cake layer filtration, biodegradation).
Keywords: textile dyes; MBR; membrane bioreactors; textile wastewater; white-rot fungi; wastewater treatment; decolouration capacity; biosorption; biodegradation; total organic carbon; dye removal; cake layer filtration.
International Journal of Environmental Engineering, 2010 Vol.2 No.1/2/3, pp.43 - 55
Published online: 02 Dec 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article