Feasibility of a membrane-aerated biofilm reactor for wastewater on a single-stage type

The membrane-aerated biofilm reactor(MABR) was specially designed to evaluate its suitability for the treatment of an artificial sewage in laboratory. The paper presented the configuration of the MABR, the performance of MABR on treatment efficiencies(COD, NH4+-N, NO3--N), and the theoretical analysis on treatment efficiencies. After 60 days of operation, the effluent concentration of COD was below 50 mg/L, and the removal efficiency was above 85%; the effluent concentration of NH4+-N was below 20 mg/L, and the removal efficiency fluctuated at the range of 90%; what's more, the MABR reach the goal of simultaneous nitrification and denitrification(SND). Based on these experiments, the MABR was shown to be a very suitable experimental set-up for wastewater on a single-stage type.