1991

Boller, M. (1991). Denitrifikation in den Kläranlagen Rorbas, Zürich-Werdhölzli und Winterthur. VSA-Verbandsbericht, 412.

Boller, M., Gross, A., and Zimmermann, H. (1991). Aerob-thermophile Schlammstabilisierung mit Reinsauerstoff. Gas-Wasser-Abwasser, 71, 455-469.

Fruhen M., Christan E., Gujer W., and Wanner O. (1991). Significance of spatial distribution of microbiol species in mixed culture biofilms. Wat.Sci.Tech., 23(Kyoto), 1365-1374.

Fruher, M., Christan, E., Gujer, W., and Wanner, O. (1991). Significance of spatial distribution of microbial species in mixed culture biofilms. Wat. Sci. Tech., 23, 1365-1374.

Grau, P., Gujer, W., Ives, K. J., Kroiss, H., Di Pinto, A. C., Suzuki, M., Toerien, D. F., Milburn, A., Izod, E. J., and Nagle, P. T. (1991). Water Pollution Research and Control. Water Science and Technology, 23(4-6).

Gujer, W. (1991). Simulation von Belebungsanlagen. EAWAG.

Gujer, W., and Henze, M. (1991). Activated Sludge Modelling and Simulation. Wat. Sci. Tech., 23, 1011-1023.

Gujer, W., and Henze M. (1991). Activated Sludge Modelling and Simulation. Wat.Sci.Tech., 23(Kyoto), 1011-1023.

Kappeler J., and W., G. (1991). Estimation of kinetic parameters of heterotrophic biomass under aerobic conditions and characterization of wastewater for activated sludge modelling. .

Krebs, P. (1991). Density currents in final settling tanks. XXIV IAHR Congress, September 9-13,1991,,, Madrid, Spain, A713-A720.

Krebs, P. (1991). The hydraulics of final settling tanks. Wat.Sci.Techn., 23(4-6), 1037-1046.

Krebs, P. (1991). Modellierung und Verbesserung der Strömung in Nachklärbecken, ETH-Diss 9486, ETH, Zurich.

Krebs, P., and Bieler, F. (1991). Neuartige Holzschwellen für die Töss. wasser, energie, luft, 83(3/4), 89-95.

Krebs, P., and Bieler, F. (1991). Neuartige Holzschwellen für das Flussbett der Töss. schweizer holzzeitung, 31/32, 2-4.

Siegrist, H., Renggli, D., and Gujer, W. (1991). Mathematical modelling of the single and two stage sewage sludge treatment. Treatment and use of sewage sludge and liquid agricultural wastes, Elsevier Applied Science,45-58.

Siegrist H., and M., T. (1991). Interpretation of experimental data with regart to the activated sludge model, No. 1 and calibration of the model for a municipal wastewater treatment plant. EAWAG.

Sollfrank, U., and Gujer, W. (1991). Characterisation of domestic wastewater for mathematical modelling of the activated sludge process. Wat. Sci. Tech., 23.

Sollfrank U., and Gujer W. (1991). Characterisation of domestic wastewater for mathematical modelling of the activated sludge process. Wat.Sci.Tech., 23(Kyoto), 1057-1066.

Wanner O., Kappeler J., and Gujer W. (1991). Calibration of an activ. sludge model based on human expertise and on mathematical optimization technique - a comparison. Wat.Sci.Tech.