Anaerobic membrane bioreactor model for design and prediction of domestic wastewater treatment process performance

• A model was developed to simulate system-level performance of AnMBRs. Membrane pore sizes affects hydrolysis particulate and colloidal COD. The is applicable both CSTR-AnMBR SAF-MBR configurations. Independently acquired parameters were used predict performance. simulates dynamic the AnMBR with <10% error. Anaerobic treatment municipal wastewater that produces energy low levels biosolids for disposal has potential replace conventional aerobic processes. Here we propose a generic anaerobic membrane bioreactors (AnMBRs) incorporates dispersed growth microbial metabolism soluble substrates, including size-exclusion constraint based upon size submerged membranes. can be expanded include attached systems, such as fluidized bed reactors (AFBRs) within staged bioreactor (SAF-MBR) system. Model development entailed: (1) acquisition key kinetic metabolic on independent batch studies, (2) creation matrix processes, (3) describes relevant mass balances in utility demonstrated simulations pilot-scale second generation treating (SAF-MBR 2.0). System outputs COD system effluent (= permeate), recirculated bulk MLSS, gas production rate composition, dissolved methane concentration. These are critical design assessment. Predictions by agreed well monitored values, typically less than 10% error, indicating assays calibration enable reliable systems-level simulations.