Editorial (P. Wilderer, S. Wuertz).
Modern scientific methods and their potential in wastewater science and technology (P.A. Wilderer, et al.).
Microbiological aspects of a bioreactor with submerged membranes for aerobic treatment of municipal wastewater (R. Witzig, et al.).
Characterization of denitrifying phosphate-accumulating organisms cultivated under different electron acceptor conditions using polymerase chain reaction-denaturing gradient gel electrophoresis assay (J. Ahn, T. Daidou, S. Tsuneda, A. Hirata).
Performance of a bioreactor with submerged membranes for aerobic treatment of municipal waste water (S. Rosenberger, et al.).
Enumeration of acetate-consuming bacteria by microautoradiography under oxygen and nitrate respiring conditions in activated sludge (J.L. Nielsen, P.H. Nielsen).
Microbial community analysis of thermophilic contact oxidation process by using ribosomal RNA approaches and the quinone profile method (F. Kurisu, H. Satoh, M. Mino, T. Matsuo).
Active biomass in activated sludge mixed liquor (G.L. Cronje, A.O. Beeharry, M.C. Wentzel, G.A. Ekama).
Role of filamentous microorganisms in activated sludge foaming: relationship of mycolata levels to foaming initiation and stability (F.L. de los Reyes III, L. Raskin).
Assessment of activated sludge viability with flow cytometry (G. Ziglio, et al.).
Nitrifying and heterotrophic population dynamics in biofilm reactors: effects of hydraulic retention time and the presence of organic carbon (R. Nogueira, et al.).
Sludge population optimisation: a new dimension for the control of biological wastewater treatment systems (Zhiguo Yuan, L.L. Blackall).
Population changes in a biofilm reactor for phosphorus removal as evidenced by the use of FISH (C.M. Falkentoft, et al.).
Simultaneous P and N remov