Title: Biomineralisation of dye waste in a two-phase hybrid UASB reactor using starch effluent as a co-substrate

Authors: M. Senthilkumar, V. Arutchelvan, V. Kanakasabai, K.R. Venkatesh, S. Nagarajan

Addresses: Department of Civil Engineering, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. ' Department of Civil Engineering, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. ' Department of Civil Engineering, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. ' Department of Civil Engineering, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. ' Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamil Nadu, India

Abstract: Starch and dye wastes have wide variation in their characteristics were treated on combination; this new technology supports the effective utilisation of starch waste in destruction of dyes. In this investigation, a lab-scale two-phase HUASBR was used at ambient temperature. After start-up, the dye and starch effluent were mixed at different proportions and fed into the reactor. The reactor was operated with an OLR of 8 kg. COD/m³.d and HRT of 12 h. The high COD (96%), colour removal (97%) and a biogas generation of 24.5 l/d were achieved with a 40/60 ratio of dye and starch effluent.

Keywords: biomineralisation; dye waste; starch effluent; HUASBR; anaerobic digestion; acidogenic reactors; methanogenic reactors; dyes; colour removal; biogas generation; COD removal; chemical oxygen demand; wastewater treatment; hybrid upflow anaerobic sludge blanket.

DOI: 10.1504/IJEWM.2009.026351

International Journal of Environment and Waste Management, 2009 Vol.3 No.3/4, pp.354 - 365

Published online: 07 Jun 2009 *

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