Biosorption of lead by Phanerochaete chrysosporium in the form of pellets.
The growth of Phanerochaete chrysosporium(ATCC 24725) in pellets was influenced by culture time, medium pH, C/N, surfactant concentration, spore number in inoculum, and shaking rate. The removal of Pb2+ from aqueous solution by this kind of mycelial pellets was studied. The results indicated that many factors affected biosorption. These factors included pH, Pb2+ concentration, co-ion, adsorption time, and chemical pretreatments of biomass. Under optimum biosorption conditions(pH 4.5, 27 degrees C, 16 h), the highest lead uptake of 108 mg/g, was observed with mycelial pellets of 1.5-1.7 mm in diameter which were treated with 0.1 mol/L NaOH solution before adsorption. Pretreatment of biomass with NaOH further increased its biosorption capacity.
Wu
Juan
J
School of Life Sciences, Anhui University, Hefei 230039, China. wjzdb@mail.hf.ah.cn
Li
Qing-biao
QB
D001682:Biological Availability; D018533:Biomass; D004785:Environmental Pollutants / Q000493:pharmacokinetics*; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000493:pharmacokinetics*; D010316:Particle Size; D020075:Phanerochaete / Q000502:physiology*; D014018:Tissue Distribution
D004785:Environmental Pollutants; D007854:Lead