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Treatment of Industrial Wastewater with High Concentration of Hydrocarbons Using Membrane Reactors
Bienati, B.,Bottino, A.,Comite, A.,Ferrari, F.,Firpo, R.,Capannelli, G 한국막학회 2007 멤브레인 Vol.17 No.2
The application of membrane bioreactors for the depuration of wastewater coming from the washing of mineral oil storage tanks is described. Microfiltration hollow-fibre membranes were used in the submerged configuration. Filtration tests were carried out with a biomass concentration of about 15 g/L in order to assess the critical flux of the hollow fibre membrane used. Then particular care was taken in carrying out the performance runs in the sub-critical flux region. The reactor performance was very high, with removal efficiencies ranging between 93% and 97% also when the concentration of hydrocarbon was very high. Some kinetic parameters for the COD and the hydrocarbon removal were estimated.