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Continuous fixed bed biosorption of Cu 2+ ions: application of a simple two parameter mathematical model
Author(s) -
Brady Joseph M,
Tobin John M,
Roux JeanClaude
Publication year - 1999
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199901)74:1<71::aid-jctb985>3.0.co;2-8
Subject(s) - rhizopus arrhizus , biosorption , adsorption , chemistry , chromatography , continuous flow , copper , biomass (ecology) , volumetric flow rate , nuclear chemistry , thermodynamics , organic chemistry , biology , sorption , physics , lipase , mechanics , agronomy , enzyme
Biomass from two fungi of the Mucorales order, laboratory cultured and immobilised Rhizopus arrhizus , and industrial waste Mucor miehei , was tested for capacity to adsorb copper from solution in batch and continuous‐flow column systems. Maximum uptake levels were c 400 and 300 mmol g −1 (dry weight) respectively. Immobilisation of Rhizopus arrhizus in polyvinyl formal to cell loadings of 60% (w/w) did not diminish metal uptake levels. In continuous‐flow columns both biosorbents adsorbed copper to levels equal or approaching the batch uptake values. Column breakthrough curves were fitted to a two parameter model and each of the parameters, σ and t 0 , were linearly correlated with column operating parameters. Predicted breakthrough curves agreed closely with experimental values. © 1999 Society of Chemical Industry