Removal of insoluble inorganic compounds from aqueous suspensions by living and dead various fungal biomass
The bio-adsorption efficiency of insoluble compounds and particulates by various fungal biomass (live or heat killed) variedrnconsiderably among different fungal species. The biomass of Rhizopus spp. and Mucor spp. showed the highest bio-adsorptionrnefficiency (80-100%) towards the tested compounds compared to other fungi. However, bio-adsorption percentage withrnAspergillus niger and Penicillium chrysogenum was relatively low. In fact the statistical analysis (analysis of variance) indicaternthat the type of fungal biomass is the most important criteria affecting the bio-adsorption process. The result shows that, in additionrnto fungal species differentiation, there is also a significant fungal depended selectivity for the adsorbed compound. The status ofrnthe fungal biomass (live or killed) is a significant factor for efficiency of adsorption. The use of M. rouxii NRRL 1894 biomass inrnthe form pelleted biomass for the removal of insoluble- inorganic compounds was less efficient than the dispersed biomass. Thernadsorption was found to be influenced by time and temperature. Rhizopus sp. adsorbed increasing amount of CaCO3 withrnincreasing length of exposure, also the removal% of CaCO3 by Rhizopus sp. biomass was efficient within a temperature range ofrn20 °C to 40 °C. A decrease of CaCO3 adsorption was observed at 10 °C.
AM Saad. Removal of insoluble inorganic compounds from aqueous suspensions by living and dead various fungal biomass. European Journal of Biotechnology and Bioscience, Volume 3, Issue 10, 2015, Pages 20-25