title: Performance and kinetic evaluation of an integrated anaerobic-aerobic bioreactor in the treatment of palm oil mill effluent.
abstract: This work presents the evaluation of biokinetic coefficients for a novel integrated anaerobic-aerobic bioreactor (IAAB) at different organic loading rates (OLRs) (10.5-22.5 g COD/L per day) treating palm oil mill effluent. The overall efficiencies of the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) were more than 99% for OLR up to 19.5 g COD/L day with biogas production containing 48-64% of methane. The effluent quality remained stable (BOD < 80 mg/L) and satisfied with the discharge limit. Stover-Kincannon model was the most appropriate model to estimate the performance of anaerobic compartment of IAAB, while Monod model was best suited for describing the aerobic compartment.
  
  
  BACKGROUND
  BOD: biochemical oxygen demand; COD: chemical oxygen demand; DO: dissolved oxygen; GLSS: gas-liquid-solid separator; MLSS: mixed liquor suspended solid; MLVSS: mixed liquor volatile suspended solid; POME: palm oil mill effluent; RAS: returned activated sludge; SBR: sequencing batch reactor; SVI: sludge volume index; TA: total alkalinity; TN: total nitrogen; TS: total solids; TSS: total suspended solids; UASB: upflow anaerobic sludge blanket; UASFF: upflow anaerobic sludge blanket fixed film; VFA: volatile fatty acid; VSS: volatile suspended solids.
authors.affiliation: a Department of Chemical and Environmental Engineering, Faculty of Engineering , The University of Nottingham Malaysia Campus , Semenyih , Selangor , Malaysia.
authors.forename: Yi Jing
authors.initials: YJ
authors.lastname: Chan
authors.affiliation: a Department of Chemical and Environmental Engineering, Faculty of Engineering , The University of Nottingham Malaysia Campus , Semenyih , Selangor , Malaysia.
authors.forename: Mei Fong
authors.initials: MF
authors.lastname: Chong
authors.affiliation: a Department of Chemical and Environmental Engineering, Faculty of Engineering , The University of Nottingham Malaysia Campus , Semenyih , Selangor , Malaysia.
authors.forename: Chung Lim
authors.initials: CL
authors.lastname: Law
mesh_terms: D000332:Aerobiosis; D000693:Anaerobiosis; D056804:Biofuels; D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D004867:Equipment Design; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008697:Methane / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D000073878:Palm Oil; D010938:Plant Oils / Q000737:chemistry*; D013379:Substrate Specificity
chemical_list: D056804:Biofuels; D009930:Organic Chemicals; D010938:Plant Oils; D000073878:Palm Oil; D008697:Methane; D010100:Oxygen
keywords: Wastewater; aerobic; anaerobic; kinetics; palm oil mill effluent