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Biotechnology Letters, Vol.24, No.8, 591-594, 2002
Scale-up performance of a partitioning bioreactor for the degradation of polyaromatic hydrocarbons by Sphingomonas aromaticivorans
A partitioning bioreactor, consisting of an aqueous phase containing Sphingomonas aromaticivorans and an immiscible organic phase (dodecane), loaded with naphthalene and phenanthrene, was operated at two scales, 5 l and 150 l. Complete degradation of 15 g and 300 g, respectively, of these polyaromatic hydrocarbon (PAH) mixtures was achieved in 21 h in both cases resulting in a volumetric PAH degradation rate of 238 mg l(-1) h(-1) based on reactor aqueous volumes.