Development and Application of Membrane Aerated Biofilm Reactor (MABR)—A Review

As a new type of biological treatment process, membrane aerated biofilm reactors (MABRs), which have received extensive attention and research in recent years, could reduce energy consumption by 70% compared to the traditional activated sludge process. The MABR system uses bubble-free aeration material as carrier, counter-diffusion mechanism oxygen pollutants enables ammonium oxidizing bacteria (AOB) nitrate (NOB) adhere surface so that simultaneous nitrification denitrification (SND) can occur achieve nitrogen carbon removal. Currently, technology has been successfully applied municipal sewage, various industrial wastewater, pharmaceutical, high salinity, ammonia, aquaculture landfill leachate black odorous water bodies rivers. Many laboratory experiments pilot-scale used study performance materials, pollutant removal effects different factors on system. However, is affected such dissolved (DO), pH, C/N, thickness, hydraulic retention time (HRT), temperature, etc., limits large-scale promotion. Therefore, modules, biofilm, application technology, influencing performance, limitations perspectives are reviewed this paper, we expect provide valuable information.