چكيده لاتين :
Biosorption of Cr(VI) from aqueous solution was studied in a batch bioreactor using the resting cells of
filamen tous funga l biomass (Aspergillus sp.) isolated from industrial wastewaters. The specific Cr(VI)
removal (mg/g of dried biomass) decre ased with increase in pH and increased with increase in initial
Cr(VI) conce ntration , upto 500 mg/L. By increasing biomass concentration from 2.4 to 5.2 g/L, the
specific metal remova l remai ned almost constant. The studies carried out by using the resting cells from
vario us stages of growth indicated maximum Cr(VI) remov al of 34.8 mg/g using the bioma ss from the
beginning of the stationary phase. The adsorption equilibrium constants Q" (42 .9 mg/g) and b (0.009 1Img)
were obtained from the Langmuir adsorption isotherm model.
