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Mustafa Wajdi,Khalida Muda,Mohamad Ali Fulazzaky 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.126 No.-
Understanding the mechanisms and mass transfer kinetics of chemical oxygen demand (COD) removedfrom palm oil mill effluent (POME) could be one of the most important steps to achieve an effectivedesign process of engineering acetogenic bacteria. The aim of this study was to evaluate the mass transferkinetics of COD removed from POME in stirred cylinder batch reactor (SCBR) under an anaerobic environmentusing the modified mass transfer factor models. The performance of SCBR for the removal of CODincreased with an electromagnetic field (EMF) exposure reaches 77.6% of its maximum efficiency whenthe operation of SCBR was set at the hydraulic retention time of 9 days. The variation of [kLa]d valuehas a trend of almost similar to that of [kLa]g value and is far higher than that of [kLa]f value to concludethat the resistance of mass transfer for the removal of COD from POME by the SCBR process depends onexternal mass transfer. The analysis of COD removal efficiency pursuant to the [kLa]d value provides anew insight on the performance of SCBR increased with an EMF exposure contributing to advanced treatmentof COD from POME for achieving an effective process of engineering acetogenic bacteria.