Bellandi, G., Mulder, J., Van Hoey, S., Rehman, U., Amerlinck, Y., Vanrolleghem, P. A., Weijers, S., Gori, R. et Nopens, I. (2019) Tanks in series versus compartmental model configuration: Considering hydrodynamics helps in parameter estimation for an N2O model. Wat. Sci. Tech., 79, 73-83.  

Bürger, R., Diehl, S., Carmen Martía, M., Mulet, P., Nopens, I., Torfs, E. et Vanrolleghem, P. A. (2017) Numerical solution of a multi-class model for batch settling in water resource recovery facilities. Appl. Math. Modelling , 49, 415-436.  

Torfs, E., Martí, M., Locatelli, F., Balemans, S., Bürger, R., Diehl, S., Laurent, J., Vanrolleghem, P. A., François, P. et Nopens, I. (2017) Concentration-driven models revisited: Towards a unified framework to model settling tanks in water resource recovery facilities. Wat Sci. Tech., 75(3), 539-551.  

Bürger, R., Careaga, J., Diehl, S., Mejías, C., Nopens, I., Torfs, E. et Vanrolleghem, P. A. (2016) Simulations of reactive settling of activated sludge with a reduced biokinetic model. Computers Chem. Eng., 92, 216-229.  

Bachis, G., Maruéjouls, T., Tik, S., Amerlinck, Y., Melcer, H., Nopens, I., Lessard, P. et Vanrolleghem, P. A. (2015) Modelling and characterization of primary settlers in view of whole plant and resource recovery modelling. Wat Sci. Tech., 72(12), 2251-2261.  

Nopens, I., Santoro, D., Haas, C. et Vanrolleghem, P. A. (2015) Editorial Special Issue on Computional fluid dynamics in water and wastewater processes. Water Qual. Res. J. Canada, 50, 1-3.  

Nopens, I., Torfs, E., Ducoste, J., Vanrolleghem, P. A. et Gernaey, K. (2015) Population balance models: A useful complementary modelling framework for future WWTP modelling. Wat Sci. Tech., 71(2), 159-167.  

Rehman, U., Vesvikar, M., Meers, E., Guo, L., Vanrolleghem, P. A. et Nopens, I. (2015) Effect of sensor location on controller performance in a wastewater treatment plant. Wat. Sci. Tech. , 71, 700-708.  

Flores-Alsina, X., Arnell, M., Amerlinck, Y., Corominas, L., Gernaey, K., Guo, L., Lindblom, E., Nopens, I., Porro, J., Shaw, A., Snip, L., Vanrolleghem, P. A. et Jeppsson, U. (2014) Balancing effluent quality, economic cost and greenhouse gas emissions during the evaluation of (plant-wide) control/operational strategies in WWTPs. Sci. Total Environ., 466-467, 616-624.  

Vezzaro, L., Benedetti, L., Gevaert, V., De Keyser, W., Verdonck, F., De Baets, B., Nopens, I., Cloutier, F., Vanrolleghem, P. A. et Mikkelsen, P. (2014) A model library for dynamic transport and fate of micropollutants in integrated urban wastewater and stormwater systems. Environ. Modelling & Software, 53, 98-111.  

Jeppsson, U., Alex, J., Batstone, D., Benedetti, L., Comas, J., Copp, J., Corominas, L., Flores-Alsina, X., Gernaey, K., Nopens, I., Pons, M. N., Rodríguez-Roda, I., Rosen, C., Steyer, J. P., Vanrolleghem, P. A., Volcke, E. et Vrecko, D. (2013) Benchmark Simulation Models, quo vadis? Wat. Sci. Tech., 68(1), 1-15.  

Benedetti, L., Batstone, D., De Baets, B., Nopens, I. et Vanrolleghem, P. A. (2012) Uncertainty analysis of WWTP control strategies made feasible. Water Qual. Res. J. Canada, 47, 14-29.  

Guo, L., Porro, J., Sharma, K., Amerlinck, Y., Benedetti, L., Nopens, I., Shaw, A., Van Hulle, S., Yuan, Z. et Vanrolleghem, P. A. (2012) Towards a benchmarking tool for minimizing wastewater utility greenhouse gas footprints. Wat. Sci. Tech., 66(11), 2483-2495.  

Benedetti, L., Claeys, F., Nopens, I. et Vanrolleghem, P. A. (2011) Assessing the convergence of LHS Monte Carlo simulations of wastewater treatment models. Wat. Sci. Tech., 63(10), 2219-2224.  

Plósz, B., De Clercq, J., Nopens, I., Benedetti, L. et Vanrolleghem, P. A. (2011) Shall we upgrade one-dimensional secondary settler models used in WWTP simulators? - An assessment of model structure uncertainty and its propagation. Wat. Sci. Tech., 63(8), 1726-1738.  

Benedetti, L., De Baets, B., Nopens, I. et Vanrolleghem, P. A. (2010) Multi-criteria analysis of wastewater treatment plant design and control scenarios under uncertainty. Environ. Modelling & Software, 25, 616-621.  

Benedetti, L., De Keyser, W., Nopens, I. et Vanrolleghem, P. A. (2010) Probabilistic modelling and evaluation of wastewater treatment plant upgrades in a water quality based evaluation context. J. Hydroinformatics, 12, 380-395.  

De Keyser, W., Gevaert, V., Verdonck, F., Nopens, I., De Baets, B., Vanrolleghem, P. A., Mikkelsen, P. et Benedetti, L. (2010) Combining multimedia models with integrated urban water system models for micropollutants. Wat. Sci. Tech., 62(7), 1614-1622.  

Jiang, T., Kennedy, M., De Schepper, V., Nam, S. N., Nopens, I., Vanrolleghem, P. A. et Amy, G. (2010) Characterization of soluble microbial products and their fouling impacts in membrane bioreactors. Environ. Sci. Technol. , 44, 6642-6648.  

Nopens, I., Benedetti, L., Jeppsson, U., Pons, M. N., Alex, J., Copp, J., Gernaey, K., Rosen, C., Steyer, J. P. et Vanrolleghem, P. A. (2010) Benchmark Simulation Model No 2: Finalisation of plant layout and default control strategy. Wat. Sci. Tech., 62(9), 1967-1974.  

Govoreanu, R., Saveyn, H., Van Der Meeren, P., Nopens, I. et Vanrolleghem, P. A. (2009) A methodological approach for direct quantification of the activated sludge floc size distribution by using different techniques. Wat. Sci. Tech., 60(7), 1857-1867.  

Hug, T., Benedetti, L., Hall, E., Johnson, B., Morgenroth, E., Nopens, I., Rieger, L., Shaw, A. et Vanrolleghem, P. A. (2009) Wastewater treatment models in teaching and training: The mismatch between education and requirements for jobs. Wat. Sci. Tech., 59(4), 745-753.  

Jiang, T., Sin, G., Spanjers, H., Nopens, I., Kennedy, M., Van Der Meer, W., Futselaar, H., Amy, G. et Vanrolleghem, P. A. (2009) Comparison of the modeling approach between membrane bioreactor and conventional activated sludge processes. Water Environ. Res., 81, 432-440.  

Nopens, I., Batstone, D., Copp, J., Jeppsson, U., Volcke, E., Alex, J. et Vanrolleghem, P. A. (2009) An ASM/ADM model interface for dynamic plant-wide simulation. Wat. Res., 43, 1913-1923.  

De Clercq, J., Nopens, I., Defrancq, J. et Vanrolleghem, P. A. (2008) Extending and calibrating a mechanistic hindered and compression settling model for activated sludge using in-depth batch experiments. Wat. Res., 42, 781-791.  

Jiang, T., Myngheer, S., De Pauw, D., Spanjers, H., Nopens, I., Kennedy, M., Amy, G. et Vanrolleghem, P. A. (2008) Modelling the production and degradation of soluble microbial products (SMP) in membrane bioreactors (MBR). Wat. Res., 42, 4955-4964.  

Nopens, I., Foubert, I., De Graef, V., Van Laere, D., Dewettinck, K. et Vanrolleghem, P. A. (2008) Automated image analysis tool for migration fat bloom evaluation of chocolate coated food products. LWT - Food Sci. Technol., 41, 1884-1891.  

Sin, G., Niville, K., Bachis, G., Jiang, T., Nopens, I., Van Hulle, S. et Vanrolleghem, P. A. (2008) Nitrite effect on the phosphorus uptake activity of phosphate accumulating organisms (PAOs) in pilot-scale SBR and MBR reactors. Water SA, 34, 249-260.  

Jeppsson, U., Pons, M. N., Nopens, I., Alex, J., Copp, J., Gernaey, K., Rosen, C., Steyer, J. P. et Vanrolleghem, P. A. (2007) Benchmark simulation model no 2: General protocol and exploratory case studies. Wat. Sci. Tech., 56(8), 67-78.  

Jiang, T., Kennedy, M., Yoo, C., Nopens, I., Van Der Meer, W., Futselaar, H., Schippers, J. et Vanrolleghem, P. A. (2007) Controlling submicron particle deposition in a side-stream membrane bioreactor: A theoretical hydrodynamic modelling approach incorporating energy consumption. J. Membr. Sci., 297, 141-151.  

Nopens, I., Sin, G., Jiang, T., D'Antonio, L., Stama, S., Zhao, J. et Vanrolleghem, P. A. (2007) Model-based optimisation of the biological performance of a sidestream MBR. Wat. Sci. Tech., 56(6), 135-143.  

Nopens, I., Nere, N., Vanrolleghem, P. A. et Ramkrishna, D. (2007) Solving the inverse problem for aggregation in activated sludge flocculation using a population balance framework. Wat. Sci. Tech., 56(6), 95-103.  

Insel, G., Sin, G., Lee, D., Nopens, I. et Vanrolleghem, P. A. (2006) A calibration methodology and model-based systems analysis for SBRs removing nutrients under limited aeration conditions. J. Chem. Technol. Biotechnol., 81, 679-687.  

Lee, D., Sin, G., Insel, G., Nopens, I. et Vanrolleghem, P. A. (2006) Model-based optimization of a sequencing batch reactor for advanced biological wastewater treatment. Studies in Surface Science and Catalysis, 159, 165-168.  

Nopens, I. et Vanrolleghem, P. A. (2006) Comparison of discretization methods to solve a population balance model of activated sludge flocculation including aggregation and breakage. Math. Comp. Modell. of Dyn. Sys., 12, 441-454.  

Vanrolleghem, P. A., De Clercq, B., De Clercq, J., Devisscher, M., Kinnear, D. et Nopens, I. (2006) New measurement techniques for secondary settlers: A review. Wat. Sci. Tech., 53(4-5), 419-429.  

De Clercq, J., Jacobs, F., Kinnear, D., Nopens, I., Dierckx, R., Defrancq, J. et Vanrolleghem, P. A. (2005) Detailed spatio-temporal solids concentration profiling during batch settling of activated sludge using a radiotracer. Wat. Res., 39, 2125-2135.  

Nopens, I., Beheydt, D. et Vanrolleghem, P. A. (2005) Comparison and pitfalls of different discretised solution methods for population balance models: A simulation study. Computers Chem. Eng., 29, 367-377.  

Nopens, I., Koegst, T., Mahieu, K. et Vanrolleghem, P. A. (2005) PBM and activated sludge flocculation: From experimental data to a calibrated model. AIChE J., 51, 1548-1557.  

Govoreanu, R., Seghers, D., Nopens, I., De Clercq, B., Saveyn, H., Capalozza, C., Van Der Meeren, P., Verstraete, W., Top, E. et Vanrolleghem, P. A. (2003) Linking floc structure and settling properties to activated sludge population dynamics in an SBR. Wat. Sci. Tech., 47(12), 9-18.  

Gernaey, K., Petersen, B., Nopens, I., Comeau, Y. et Vanrolleghem, P. A. (2002) Modelling aerobic carbon source degradation processes using titrimetric data and combined respirometric-titrimetric data: Experimental data and model structure. Biotechnol. Bioeng., 79, 741-753.  

Nopens, I., Biggs, C., De Clercq, B., Govoreanu, R., Wilén, B. M., Lant, P. et Vanrolleghem, P. A. (2002) Modelling the activated sludge flocculation process combining laser diffraction particle sizing and population balance modelling (PBM). Wat. Sci. Tech., 45(6), 41-49.  

Carvalho, G., Nopens, I., Novais, J., Vanrolleghem, P. A. et Pinheiro, H. (2001) Modelling of activated sludge acclimatisation to a non-ionic surfactant. Wat. Sci. Tech., 43(7), 9-17.  

Nopens, I., Hopkins, L. et Vanrolleghem, P. A. (2001) An overview of the posters presented at Watermatex 2000. III: Model selection and calibration / Optimal experimental design. Wat. Sci. Tech., 43(7), 387-389.  

Bellandi, G., De Mulder, C., Van Hoey, S., Rehman, U., Amerlinck, Y., Guo, L., Vanrolleghem, P. A., Weijers, S. et Nopens, I. (2018) Tanks in series versus compartmental model configuration: Considering hydrodynamics helps in parameter estimation for an N2O model. In: Proceedings 6th IWA/WEF Water Resource Recovery Modelling Seminar (WRRmod2018) . Lac Beauport, Québec, Canada, March 10-14 2018.  

Torfs, E., Locatelli, F., Balemans, S., Laurent, J., Vanrolleghem, P. A., Bürger, R., Diehl, S., François, P., Mosse, R. et Nopens, I. (2016) Concentration-driven models revisited: Towards a unified framework to model settling tanks in WWTPs. In: Proceedings 5th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2016). Annecy, France, April 2-6 2016. 109-118.  

Torfs, E., Nopens, I., Winkler, S., Vanrolleghem, P. A., Balemans, S. et Smets, I. (2016) Settling tests. In: Experimental Methods in Wastewater Treatment. Eds. van Loosdrecht M.C.M., Nielsen P.H., Lopez-Vazquez C.M. and Brdjanovic D., IWA Publishing, London, UK. 236-262.  

Garneau, C., Diehl, S., Torfs, E., Bürger, R., Claeys, F., Nopens, I. et Vanrolleghem, P. A. (2015) The Bürger-Diehl model: The right integrator for the right model. In: Proceedings 9th International IWA Symposium on Systems Analysis and Integrated Assessment (WATERMATEX2015). Gold Coast, Australia, June 14-17 2015.  

Porro, J., Guo, L., Rodríguez-Roda, I., Poch, M., Deeke, A., Weijers, S., Vanrolleghem, P. A., Nopens, I. et Comas, J. (2015) Use of AI for online control of nitrous oxide production in water resource recovery facilities. In: Proceedings 9th International IWA Symposium on Systems Analysis and Integrated Assessment (WATERMATEX2015). Gold Coast, Australia, June 14-17 2015.  

Bachis, G., Maruéjouls, T., Tik, S., Amerlinck, Y., Melcer, H., Nopens, I., Lessard, P. et Vanrolleghem, P. A. (2014) Modelling and characterisation of primary settlers in view of whole plant and resource recovery modelling. In: Proceedings 4th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2014). Spa, Belgium, March 30 - April 2 2014. 139-150.  

Nopens, I., Torfs, E., Ducoste, J., Vanrolleghem, P. A. et Gernaey, K. (2014) Population balance models: A useful complementary modelling framework for future WWTP modelling. In: Proceedings 4th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2014). Spa, Belgium, March 30 - April 2 2014. 129-138.  

Porro, J., Kampschreur, M., Pijuan, M., Volcke, E., Daelman, M., Guo, L., Nopens, I., Vanrolleghem, P. A., Yuan, Z., Chandran, K. et Murthy, S. (2014) Measuring nitrous oxide emissions from biological wastewater treatment, art or science? In: Proceedings IWA Specialist Conference on Global Challenges for Sustainable Wastewater Treatment and Resource Recovery. Kathmandu, Nepal, October 26-30 2014.  

Porro, J., Milleri, C., Comas, J., Rodríguez-Roda, I., Pijuan, M., Corominas, L., Guo, L., Daelman, M., Volcke, E., Van Loosdrecht, M., Vanrolleghem, P. A. et Nopens, I. (2014) Risk assessment modelling of N2O production in activated sludge systems: Quality not quantity. In: Proceedings 4th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2014). Spa, Belgium, March 30 - April 2 2014. 351-357.  

Vanrolleghem, P. A. et Nopens, I. (2014) Wastewater Treatment. In: Urban Hydroinformatics - Data, Models and Decision Support for Integrated Urban Water Management. Eds. Price R.K. and Vojinovic Z., IWA Publishing, London, UK. 371-421.  

Guo, L., Lamaire Chad, C., Bellandi, G., Daelman, M., Amerlinck, Y., Maere, T., Nous, J., Flameling, T., Weijers, S., Van Loosdrecht, M., Volcke, E., Nopens, I. et Vanrolleghem, P. A. (2013) High-frequency field measurement of nitrous oxide (N2O) gas emissions and influencing factors at WWTPs under dry and wet weather conditions. In: Proceedings WEF/IWA Nutrient Removal and Recovery 2013: Trends in Resource Recovery and Use. Vancouver, British Columbia, Canada, July 28-31 2013.  

Rehman, U., Vesvikar, M., Maere, T., Guo, L., Vanrolleghem, P. A. et Nopens, I. (2013) Effect of sensor location on controller performance in a wastewater treatment plant. In: Proceedings 11th IWA Conference on Instrumentation, Control and Automation (ICA2013). Narbonne, France, September 18-20 2013.  

Flores-Alsina, X., Arnell, M., Amerlinck, Y., Corominas, L., Gernaey, K., Guo, L., Lindblom, E., Nopens, I., Porro, J., Shaw, A., Vanrolleghem, P. A. et Jeppsson, U. (2012) A dynamic modelling approach to evaluate GHG emissions from wastewater treatment plants. In: Proceedings of the IWA World Congress on Water, Climate and Energy. Dublin, Ireland, May 13-18 2012.  

Flores-Alsina, X., Arnell, M., Amerlinck, Y., Corominas, L., Gernaey, K., Guo, L., Lindblom, E., Nopens, I., Porro, J., Shaw, A., Snip, L., Vanrolleghem, P. A. et Jeppsson, U. (2012) Balancing effluent quality, economical cost and greenhouse gas emissions during the evaluation of plant-wide wastewater treatment control strategies. In: Proceedings IWA Nutrient Removal and Recovery 2012: Trends in NRR. Harbin, China, September 23-25 2012.  

Guo, L., Martin, C., Nopens, I. et Vanrolleghem, P. A. (2012) Climate change and WWTPs: Controlling greenhouse gas (GHG) emissions and impacts of increased wet weather disturbances. In: Proceedings IWA Nutrient Removal and Recovery 2012: Trends in NRR. Harbin, China, September 23-25 2012.  

Guo, L., Amerlinck, Y., Nopens, I., Porro, J. et Vanrolleghem, P. A. (2012) Greenhouse gases from and impact of climate change on wastewater treatment plants. In: Proceedings 47th CAWQ Central Canadian Symposium on Water Quality Research. Burlington, Ontario, Canada, February 21-22 2012.  

Plósz, B., Nopens, I., Rieger, L., Griborio, A., De Clercq, J., Vanrolleghem, P. A., Daigger, G., Takács, I. et Wicks, J. (2012) A critical review of clarifier modelling: State-of-the-art and engineering practices. In: Proceedings 3rd IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2012). Mont-Sainte-Anne, Québec, Canada, February 26-28 2012. 27-30.  

Jeppsson, U., Alex, J., Batstone, D., Benedetti, L., Comas, J., Copp, J., Corominas, L., Flores-Alsina, X., Gernaey, K., Nopens, I., Pons, M. N., Rodriguez, J., Rosen, C., Steyer, J. P., Vanrolleghem, P. A., Volcke, E. et Vrecko, D. (2011) Quo vadis benchmark simulation models? In: Proceedings 8th International IWA Symposium on Systems Analysis and Integrated Assessment in Water Management (WATERMATEX2011). San Sebastian, Spain, June 20-22 2011. 493-506.  

Porro, J., Guo, L., Sharma, K., Benedetti, L., Van Hulle, S., Vanrolleghem, P. A., Amerlinck, Y., Yuan, Z., Shaw, A. et Nopens, I. (2011) Towards a benchmarking tool for minimizing wastewater utility greenhouse gas footprints. In: Proceedings 8th International IWA Symposium on Systems Analysis and Integrated Assessment in Water Management (WATERMATEX2011). San Sebastian, Spain, June 20-22 2011. 507-517.  

Kinnear, D., Nopens, I., Pellegrin, M. L., Maere, T., Nolasco, D., Glassen, R., Insel, G., Amerlinck, Y., Bailey, E., Belia, E., Takács, I., Houweling, D., Causey, P., Giardina, R., Murthy, S., Vanrolleghem, P. A., Barnard, J., Melcer, H., Krauth, P., Reardon, R. et Neethling, J. (2010) Membrane bioreactor life-cycle cost assessment simulation: Digital game-based learning. In: Proceedings 83rd Annual WEF Technical Exhibition and Conference (WEFTEC2010). New Orleans, USA, October 2-6 2010. 4336-4345.  

Plósz, B., Nopens, I., De Clercq, J., Benedetti, L. et Vanrolleghem, P. A. (2010) Shall we upgrade one-dimensional secondary settler models using in WWTP simulators? Yes. In: Proceedings IWA World Water Congress 2010. Montr  

Benedetti, L., Vezzaro, L., Gevaert, V., De Keyser, W., Verdonck, F., De Baets, B., Nopens, I., Vanrolleghem, P. A. et Mikkelsen, P. (2009) Dynamic transport and fate models for micro-pollutants in integrated urban wastewater systems. In: Proceedings 82nd Annual WEF Technical Exhibition and Conference (WEFTEC2009). Orlando, USA, October 10-14 2009. (on CD-ROM).  

De Keyser, W., Gevaert, V., Verdonck, F., Nopens, I., De Baets, B., Vanrolleghem, P. A., Mikkelsen, P. et Benedetti, L. (2009) Combining multimedia models with integrated urban water system models for micropollutants. In: Proceedings 8th International Conference on Urban Drainage Modelling (8UDM). Tokyo, Japan, September 7-11 2009 (on CD-ROM).  

Benedetti, L., Batstone, D., De Baets, B., Nopens, I. et Vanrolleghem, P. A. (2008) Global sensitivity analysis of biochemical, design and operational parameters of the Benchmark Simulation Model no. 2. In: Proceedings International Congress on Environmental Modelling and Software (iEMSs2008). Barcelona, Spain, July 7-10 2008. Vol. 2, 1322-1330.  

Benedetti, L., Nopens, I. et Vanrolleghem, P. A. (2008) Global sensitivity analysis of design and operational parameters of the Benchmark Simulation Model nr. 2. In: Proceedings International Symposium on Sanitary and Environmental Engineering (SIDISA.08). Florence, Italy, June 24-27 2008. (on CD-ROM).  

Benedetti, L., De Baets, B., Nopens, I. et Vanrolleghem, P. A. (2008) Uncertainty analysis of control strategies and plant design scenarios with the Benchmark Simulation Model no. 2. In: Proceedings International Symposium on Sanitary and Environmental Engineering (SIDISA.08). Florence, Italy, June 24-27 2008. (on CD-ROM).  

Copp, J., Jeppsson, U., Pons, M. N., Nopens, I., Alex, J., Gernaey, K., Rosen, C., Steyer, J. P. et Vanrolleghem, P. A. (2008) Benchmark Simulation Model No 2 - General protocol and advances in modelling application. In: Proceedings 1st IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2008). Mont-Sainte-Anne, Québec, Canada, June 1-3 2008. 35-42.  

Nopens, I., Benedetti, L., Jeppsson, U., Pons, M. N., Alex, J., Copp, J., Gernaey, K., Rosen, C., Steyer, J. P. et Vanrolleghem, P. A. (2008) Benchmark Simulation Model No 2 - Finalisation of plant layout and default control strategy. In: Proceedings IWA World Water Congress 2008. Vienna, Austria, September 7-12 2008. (on CD-ROM).  

Rios, N., Nopens, I. et Vanrolleghem, P. A. (2008) Hydrodynamic CFD simulation of a two-phase flow in an ultrafiltration membrane tube for a side-stream membrane bioreactor. In: Proceedings 5th International Conference on Transport Phenomena in Multiphase Systems (HEAT 2008). Bialystok, Poland, June 30 - July 3 2008.  

Rios, N., Nopens, I. et Vanrolleghem, P. A. (2008) Mass transfer coefficient determination of a two-phase flow for an UF membrane in a side-stream MBR. In: Proceedings 5th International Conference on Transport Phenomena in Multiphase Systems (HEAT 2008). Bialystok, Poland, June 30 - July 3 2008.  

Rios, N., Nopens, I. et Vanrolleghem, P. A. (2008) Two-phase slug flow CFD model for an ultrafiltration side-stream MBR. In: Proceedings Engineering with Membranes 2008 (EWM2008). Vale de Lobo, Algarve, Portugal, May 25-28 2008.  

Rios, N., Nopens, I. et Vanrolleghem, P. A. (2008) Using a two-phase hydrodynamic model to control fouling in an ultrafiltration side-stream MBR. In: Proceedings Membrane Technology 2008. Atlanta, Georgia, USA, January 27-30 2008. (on CR-ROM).  

Nopens, I., Nere, N., Vanrolleghem, P. A. et Ramkrishna, D. (2007) On the formulation of effective mechanistic aggregation kernels for the flocculation process with concurrent mechanisms using inverse problem solution. In: Proceedings AIChE Annual Meeting 2007. Salt Lake City, Utah, USA, November 4-9 2007.  

Nopens, I., Nere, N., Vanrolleghem, P. A. et Ramkrishna, D. (2007) Solving the inverse problem for aggregation in activated sludge flocculation. In: Proceedings 3rd International Conference on Population Balance Modeling (PBM2007). Québec, Québec, Canada, September 19-21 2007. (on CD-ROM).  

Rios, N., Nopens, I., De Schepper, V., Jiang, T., Verstraete, W. et Vanrolleghem, P. A. (2007) A rheological model for activated sludge in a side-stream MBR. In: Proceedings 4th IWA International Membranes Conference - Membranes for Water and Wastewater Treatment. Harrogate, United Kingdom, May 15-17 2007.  

Sin, G., Niville, K., Bachis, G., Jiang, T., Nopens, I., Van Hulle, S. et Vanrolleghem, P. A. (2007) Nitrite effect on the phosphorus uptake activity of phosphate accumulating organisms (PAO) in pilot-scale SBR and MBR reactors. In: Proceedings WEF/IWA International Conference on Nutrient Removal 2007: The State of the Art (BNR2007). Baltimore, USA, March 4-7 2007. (on CD-ROM).  

Claeys, F., De Pauw, D., Benedetti, L., Nopens, I. et Vanrolleghem, P. A. (2006) Tornado: A versatile and efficient modelling & virtual experimentation kernel for water quality systems. In: Proceedings Summit on Environmental Modelling and Software (iEMSs2006). Burlington, Vermont, USA, July 9-12 2006. (on CD-ROM).  

De Schepper, V., Jiang, T., Nopens, I. et Vanrolleghem, P. A. (2006) Modeling the performance of a membrane bioreactor controlled by air sparging. Comm. Appl. Biol. Sci., 71/1, 111-113.  

Nopens, I., Koegst, T. et Vanrolleghem, P. A. (2004) Comparison of different aggregation and breakage kernels for PBMs of the activated sludge occulation process. In: Proceedings 2nd International Conference on Population Balance Modelling. Valencia, Spain, May 5-7 2004. (in Press)  

Nopens, I., Beheydt, D. et Vanrolleghem, P. A. (2004) Comparison of discretisation techniques to solve PBMs including aggregation and/or breakage: A simulation study. In: Proceedings 2nd International Conference on Population Balance Modelling. Valencia, Spain, May 5-7 2004. (in Press)  

Nopens, I. et Vanrolleghem, P. A. (2004) Integratie van investerings- en werkingskosten voor waterzuivering met behulp van modelsimulaties. In: Proceedings Facultaire Thema Namiddag FBW. Gent, December 3 2004. pp. 21.  

Nopens, I., Koegst, T., Mahieu, K. et Vanrolleghem, P. A. (2004) PBM and activated sludge flocculation: From experimental data to a calibrated model. In: Proceedings 9th IFAC Conference on Computer Applications in Biotechnology CAB9. Nancy, France, March 28-31 2004. (on CD-ROM)  

Nopens, I., Govoreanu, R., De Clercq, B., Malisse, K., De Pauw, D., De Clercq, J. et Vanrolleghem, P. A. (2004) The Sedifloc project. In: Proceedings First Workshop on Recent Advances in Activated Sludge Flocculation (RAASF2004). Gent, Belgium, September 27-28 2004. pp. 45.  

Nopens, I. et Vanrolleghem, P. A. (2003) Comparison of discretisation methods to solve a population balance model of activated sludge flocculation including aggregation and breakage. In: Proceedings IMACS 4th MATHMOD Conference. Vienna, Austria, February 5-7 2003.  

Vanrolleghem, P. A., Insel, G., Petersen, B., Sin, G., De Pauw, D., Nopens, I., Doverman, H., Weijers, S. et Gernaey, K. (2003) A comprehensive model calibration procedure for activated sludge models. In: Proceedings 76th Annual WEF Conference and Exposition. Los Angeles, USA, October 11-15, 2003. (on CD-ROM).  

Govoreanu, R., Vandegehuchte, K., Saveyn, H., Nopens, I., De Clercq, B., Van Der Meeren, P. et Vanrolleghem, P. A. (2002) An automated image analysis system for on-line structural characterization of the activated sludge flocs. Med. Fac. Landbouww. Univ. Gent, 67/4, 175-178.  

Govoreanu, R., Nopens, I., De Clercq, B., Saveyn, H., Van Der Meeren, P. et Vanrolleghem, P. A. (2001) Influence of experimental parameters for on-line determination of floc size distribution. In: Proceedings 12th Romanian International Conference on Chemistry and Chemical Engineering. Bucharest, Romania, September 13-15 2001. (on CD-ROM).  

De Clercq, B., Nopens, I., Govoreanu, R., Vanrolleghem, P. A. et Van Der Meeren, P. (2000) Sludge (de)flocculation dynamics in secondary clarifiers. Med. Fac. Landbouww. Univ. Gent, 65/4, 235-240.  

Van Vooren, L., Van De Steene, M., Nopens, I., Ottoy, J. P. et Vanrolleghem, P. A. (2000) Buffer capacity based multipurpose hard- and software sensor for environmental applications. In: Proceedings 7th International Conference on Chemometrics in Analytical Chemistry (CAC2000). Antwerp, Belgium, October 16-20 2000.  

Nopens, I., Arnaldos, M., Belia, E., Jeppsson, U., Kinnear, D., Lessard, P., Murthy, S., O'Shaughnessy, M., Rieger, L., Vanrolleghem, P. A. et Weijers, S. (2014) Maximising the benefits of activated sludge modelling. Water 21 (October 2014), 31-33.  

Vanrolleghem, P. A. et Nopens, I. (2012) 3rd IWA/WEF Seminar on Wastewater Treatment Modelling - Een mooi voorbeeld van samenwerking tussen grote professionele organisaties. WT-Afvalwater, 12(3), 234-236. (in Dutch).  

De Clercq, J., Nopens, I., Defrancq, J. et Vanrolleghem, P. A. (2009) Uitbreiding en calibratie van mechanistisch model voor gehinderde en compressiebezinking voor actief slib met behulp van doorgedreven experimenten. Afvalwaterwetenschap, 8(1), 29-40. (in Dutch).  

Jiang, T., Myngheer, S., De Pauw, D., Spanjers, H., Nopens, I., Kennedy, M., Amy, G., Vanrolleghem, P. A. et Maere, T. (2009) Modelleren van de productie en afbraak van opgeloste microbiële producten (SMP) in membraanbioreactoren (MBR). Afvalwaterwetenschap, 8(2), 108-121. (in Dutch).  

Nopens, I., Van Hulle, S. et Vanrolleghem, P. A. (2008) Verslag van de 3rd International IWA Conference on Automation in Water Quality Monitoring (AutMoNet2007) in Gent 2007. Afvalwaterwetenschap, 7(1), 59-60. (in Dutch).  

Nopens, I., Villez, K., Rieger, L. et Vanrolleghem, P. A. (2007) Monitoring the water cycle: State of the art and future needs. IWA Yearbook 2007, 33-36.  

Sin, G., De Pauw, D., Weijers, S., Vanrolleghem, P. A. et Nopens, I. (2007) Ontwikkeling van een structurele aanpak voor het continue gebruik van actief slibmodellen in het dagelijks beheer van RWZI's. Afvalwaterwetenschap, 6(3), 150-159. (in Dutch).  

Porro, J., Comas, J., Rodríguez-Roda, I., Vanrolleghem, P. A. et Nopens, I. (2014) Qualitative modelling of N2O production from WWTPs: A knowledge-based approach for decision support. Lecture held at the Total Nitrogen Modelling Workshop at the 4th IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2014). Spa, Belgium, March 30 - April 2 2014.  

Vanrolleghem, P. A., Guo, L., Porro, J., Amerlinck, Y., Shaw, A. et Nopens, I. (2011) Mitigating wastewater utility greenhouse gas footprints - Development of a benchmark simulation model. Lecture held at the First International Symposium on Microbial Resource Management in Biotechnology: Concepts & Applications. Ghent, Belgium, June 30 - July 1 2011.  

Corominas, L., Rieger, L., Nopens, I., Benedetti, L. et Vanrolleghem, P. A. (2009) Data treatment models for dynamic simulation: Application to sensor models. Lecture held at the User Group Meeting World Wide WEST. Copenhagen, Denmark, April 27-28 2009.  

Jiang, T., Sin, G., Spanjers, H., Nopens, I., Kennedy, M., Amy, G. et Vanrolleghem, P. A. (2008) Modelling the biological nutrient removal of membrane bioreactors. Lecture held at Aquatech China. Shanghai, China, May 21-22 2008.  

Vanrolleghem, P. A., Nopens, I., Jiang, T., Kennedy, M. et Amy, G. (2008) Modelling SMPs in MBRs. Lecture held at the 1st IWA/WEF Wastewater Treatment Modelling Seminar (WWTmod2008). Mont-Sainte-Anne, Québec, Canada, June 1-3 2008.  

Foubert, I., Sichien, M., Nopens, I., Vanrolleghem, P. A. et Dewettinck, K. (2007) Modelling the temperature dependency of crystallization parameters in view of describing the non-isothermal crystallization process. Lecture held at the 5th Euro Fed Lipid Congress. Gothenburg, Sweden, September 16-19 2007.  

De Schepper, V., Jiang, T., Daneels, R., Nopens, I. et Vanrolleghem, P. A. (2006) Modeling the performance (effluent quality and membrane fouling) of a membrane bioreactor. Lecture held at the EUROMBRA Workshop on Bio-fouling in Membrane Systems. Trondheim, Norway, July 11-12 2006.  

Jiang, T., Myngheer, S., De Schepper, V., Nopens, I., Futselaar, H., Van Der Meer, W., Kennedy, M., Amy, G. et Vanrolleghem, P. A. (2006) The source of soluble microbial products and their impact on MBR fouling. Lecture held at the EUROMBRA Workshop on Bio-fouling in Membrane Systems. Trondheim, Norway, July 11-12 2006.  

Govoreanu, R., Nopens, I., Seghers, D. et Vanrolleghem, P. A. (2003) Investigation of the influence of physico-chemical parameters on the activated sludge (de)flocculation dynamics. Lecture held at the EuroConference on the Role of Colloids and Particles in Water Technology. Acquafredda di Maratea, Italy, October 4-9, 2003.  

De Pauw, D., Carvalho, G., Nopens, I., Verdonck, F., Meirlaen, J. et Vanrolleghem, P. A. (2002) WEST, a general tool for dynamic modelling and simulation (e.g. biodegradation processes). Poster presented at the 12th Annual Meeting of SETAC-Europe (Society of Environmental Toxicology and Chemistry). Vienna, Austria, May 12-16 2002.  

Nopens, I., Verbrugge, T., Seghers, D. et Vanrolleghem, P. A. (2001) OECD criteria for ready biodegradability: Environmental interpretation and study of alternatives. In: COST-624 Working Group Meeting on Biological Processes. Rome, Italy, November 29-32 2001. pp. 32.  

Torfs, E., Bürger, R., Diehl, S., Martí, M., Mulet, P., Laurent, J., Locatelli, F., Nopens, I. et Vanrolleghem, P. A. (2017) Development and numerical solution of a multiclass model for settling processes in water resource recovery facilities. Lecture held at the Stats & Control Meeting 2017. Québec, Québec, Canada, May 29-30 2017.  

Porro, J., Bellandi, G., Rodríguez-Roda, I., Deeke, A., Weijers, S., Vanrolleghem, P. A., Comas, J. et Nopens, I. (2016) Measurements and modelling for developing an AI-based DO control for mitigating N2O emissions from WWTPs. Lecture held at the 3rd IWA New Developments in IT & Water Conference. Telford, UK, November 1-3 2016.  

Vanrolleghem, P. A., De Clercq, B. et Nopens, I. (2001) PC data logging (with LabView): Data-acquisition and signal filtering. In: PhD Programme Course Trends in Research & Development Faculty of Agricultural and Applied Biological Sciences, Ghent University. January 2001.  

Nopens, I., Capalozza, C. et Vanrolleghem, P. A. (2001) Stability analysis of a synthetic municipal wastewater. BIOMATH Technical Report. Ghent University, Belgium. pp. 22.