Cai, Y., Li, X., Zaidi, A. A., Shi, Y., Zhang, K., Sun, P. “Processing Efficiency, Simulation and Enzyme Activities Analysis of an Air-Lift Multilevel Circulation Membrane Bioreactor (AMCMBR) on Marine Domestic Sewage Treatment”, Periodica Polytechnica Chemical Engineering, 63(3), pp. 448–458, 2019. https://doi.org/10.3311/PPch.13389