title: Bioadsorption of lead(II) from aqueous solution by fungal biomass of Aspergillus niger.
abstract: The removal of lead by waste fungal biomass of Aspergillus niger, originated from citric acid fermentation industry, was investigated. The experimental results indicated that the bioadsorption achieved equilibrium within 4 h. The kinetic analysis of lead adsorption onto the fungal biomass revealed that the bioadsorption process followed the first-order reaction kinetics. The adsorption isotherm can be simulated by Freundlich model, which gave a correlation coefficient equal to 0.93. The lead-loaded biomass can be effectively regenerated by 0.1 M nitric acid. This research demonstrated that the waste biomass of A. niger is a potential bioadsorbent for the removal of lead from aqueous solution.
authors.affiliation: State Key Joint Laboratory of Environment Simulation and Pollution Control, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China. wangjl@tsinghua.edu.cnes
authors.forename: W
authors.initials: W
authors.lastname: Jianlong
authors.forename: Z
authors.initials: Z
authors.lastname: Xinmin
authors.forename: D
authors.initials: D
authors.lastname: Decai
authors.forename: Z
authors.initials: Z
authors.lastname: Ding
mesh_terms: D000327:Adsorption; D001234:Aspergillus niger / Q000378:metabolism*; D001673:Biodegradation, Environmental; D007700:Kinetics; D007854:Lead / Q000378:metabolism*; D012996:Solutions; D014865:Waste Disposal, Fluid / Q000379:methods*; D014867:Water
chemical_list: D012996:Solutions; D014867:Water; D007854:Lead