Numerical modeling of an electrically enhanced membrane bioreactor (MBER) treating medium-strength wastewater.
In this paper, a numerical model of an electrically enhanced membrane bioreactor (MBER) was developed. MBER is a reactor that combines biological decomposition, membrane filtration and electrocoagulation of wastewater pollutants in a hybrid unit. To assess its design, the final contents and removal efficiencies of organics, nutrients, and metals were carried out using varying influent compositions. In a 60-day test of a laboratory-scale MBER, experimental results were used to calibrate and validate the model. The modeling results were in agreement with the experimental data and showed that the MBER can remove 99% of total phosphorus (TP), 99.9% of chemical oxygen demand (COD), 91% of total nitrogen (TN), 79% of nickel (Ni), 89% of iron (Fe), and 80% of chromium (Cr), using a current density of 15 A/m(2) intermittently supplied in a cycle of 5 min ON and 15 min OFF.
Department of Chemical and Environmental Engineering, Institute Center for Water and Environment (iWATER), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, United Arab Emirates. Electronic address: agiwa@masdar.ac.ae.
Adewale
A
Giwa
Department of Chemical and Environmental Engineering, Institute Center for Water and Environment (iWATER), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, United Arab Emirates. Electronic address: swajih@masdar.ac.ae.
Shadi Wajih
SW
Hasan
D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D004560:Electricity; D004867:Equipment Design; D008567:Membranes, Artificial; D008670:Metals / Q000737:chemistry / Q000378:metabolism; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism; D010758:Phosphorus / Q000737:chemistry / Q000378:metabolism; D013997:Time Factors; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000378:metabolism
D008567:Membranes, Artificial; D008670:Metals; D009584:Nitrogen; D010758:Phosphorus; D062065:Wastewater; D014874:Water Pollutants, Chemical
Bioprocess; Electrokinetics; Membrane; Modeling; Wastewater