Biosorption of reactive Dye from Textile Wastewater by Some Irradiated Fungi

Abstract

The potential of Aspergillus terreus fungus was investigated as a biosorbents for removal of reactive Synazol dye from its multicomponent textile wastewater. Treatment of fungal biomass with gamma radiation single (10 kGy) and/or combined with others treatments increased the removal of dye compared with untreated biomass. The treatment biomass by gamma radiation (10 kGy) and heat autoclaved for 30 min. then soaked for 1 h in 10% H2SO4, exhibited maximum dye removal at pH3, temperature 30°C and 2 g L -1 (w/v) biomass concentration after 6 h contact time under agitation rate 150 rpm min -1. Regeneration studies indicated that A. terreus immobilized biomass on sponge can be used for the biosorption and desorption of multicomponent reactive Synazol dye (MRSD) up to 5 cycles. The column studies indicated that A. terreus immobilized biomass will also be utilized in continuous mode of applications for removal of this dye in real wastewater conditions.