1. Lobo, C.C., N.C. Bertola and E.M. Contreras, 2014. Modelling the change in the oxidation coefficient during the aerobic degradation of phenol by acclimated activated sludge. Water SA, 40: 125-131.
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2. Inchaurrondo, N., E. Contreras and P. Haure, 2014. Catalyst reutilization in phenol homogeneous cupro-Fenton oxidation. Chem. Eng. J., 251: 146-157.
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3. Arturi, T.S., N.E. Zaritzky and E.M. Contreras, 2014. Simple high-performance liquid chromatography-ultraviolet method to quantify the molecular size distribution of nonylphenol ethoxylates. Ind. Eng. Chem. Res., 53: 1327-1333.
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4. Orozco, A.F., C.C. Lobo, E.M. Contreras and N.E. Zaritzky, 2013. Biodegradation of bisphenol-A (BPA) in activated sludge batch reactors: Analysis of the acclimation process. Int. Biodeteriorat. Biodegrad., 85: 392-399.
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5. Lobo, C.C., N.C. Bertola and E.M. Contreras, 2013. Stoichiometry and kinetic of the aerobic oxidation of phenolic compounds by activated sludge. Bioresour. Technol., 136: 58-65.
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6. Orozco, A.F., E.M. Contreras and N.E. Zaritzky, 2011. Effects of combining biological treatment and activated carbon on hexavalent chromium reduction. Bioresour. Technol., 102: 2495-2502.
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7. Contreras, E.M., N.C. Bertola and N.E. Zaritzky, 2011. Monitoring the ozonation of phenol solutions at constant pH by different methods. Ind. Eng. Chem. Res., 50: 9799-9809.
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8. Contreras, E.M., A.F. Orozco and N.E. Zaritzky, 2011. Biological Cr (VI) removal coupled with biomass growth, biomass decay and multiple substrate limitation. Water Res., 45: 3034-3046.
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9. Orozco, A.M.F., E.M. Contreras and N.E. Zaritzky, 2010. Dynamic response of combined activated sludge-powdered activated carbon batch systems. Chem. Eng. J., 157: 331-338.
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10. Orozco, A., E.M. Contreras and N.E. Zaritzky, 2010. Cr (VI) reduction capacity of activated sludge as affected by nitrogen and carbon sources, microbial acclimation and cell multiplication. J. Hazard. Mater., 176: 657-665.
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11. Caravelli, A.H., E.M. Contreras and N.E. Zaritzky, 2010. Phosphorous removal in batch systems using ferric chloride in the presence of activated sludges. J. Hazard. Mater., 177: 199-208.
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12. Orozco, A.M.F., E.M. Contreras and N.E. Zaritzky, 2008. Modelling Cr (VI) removal by a combined carbon-activated sludge system. J. Hazard. Mater., 150: 46-52.
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13. Contreras, E.M., M.E. Albertario, N.C. Bertola and N.E. Zaritzky, 2008. Modelling phenol biodegradation by activated sludges evaluated through respirometric techniques. J. Hazard. Mater., 158: 366-374.
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14. Contreras, E.M., F. Ruiz and N.C. Bertola, 2008. Kinetic modeling of inhibition of ammonia oxidation by nitrite under low dissolved oxygen conditions. J. Environ. Eng., 134: 184-190.
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15. Contreras, E.M., 2008. Stoichiometry of sulfite oxidation by oxygen during the determination of the volumetric mass transfer coefficient. Ind. Eng. Chem. Res., 47: 9709-9714.
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16. Orozco, A.M.F., E.M. Contreras, N.C. Bertola and N.E. Zaritzky, 2007. Hexavalent chromium removal using aerobic activated sludge batch systems added with powdered activated carbon. Water Sa, 33: 239-244.
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17. Contreras, E.M., 2007. Carbon dioxide stripping in bubbled columns. Ind. Eng. Chem. Res., 46: 6332-6337.
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18. Purlis, E. and E.M. Contreras, 2006. Redes troficas estables en barros activados. Ingenieria Sanitaria Ambiental, 86: 46-52.
19. Contreras, E.M., L. Giannuzzi and N.E. Zaritzky, 2004. Use of image analysis in the study of competition between filamentous and non-filamentous bacteria. Water Res., 38: 2621-2630.
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20. Contreras, E., N. Bertola and N. Zaritzky, 2004. The application of different techniques to determine activated sludge kinetic parameters in a food industry wastewater. Water Sa, 27: 169-176.
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21. Caravelli, A., E.M. Contreras, L. Giannuzzi and N. Zaritzky, 2003. Modeling of chlorine effect on floc forming and filamentous micro-organisms of activated sludges. Water Res., 37: 2097-2105.
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22. Contreras, E.M., N.C. Bertola, L. Giannuzzi and N.E. Zaritzky, 2002. A modified method to determine biomass concentration as COD in pure cultures and in activated sludge systems. Water Sa, 28: 463-468.
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23. Contreras, E., L. Giannuzzi and N. Zaritzky, 2002. Competitive growth kinetics of Sphaerotilus natans and Acinetobacter anitratus. Water Sci. Technol., 46: 45-48.
24. Contreras, E.M., L. Giannuzzi and N.E. Zaritzky, 2000. Growth kinetics of the filamentous microorganism Sphaerotilus natans in a model system of a food industry wastewater. Water Res., 34: 4455-4463.
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25. Giannuzzi, L., E. Contreras and N. Zaritzky, 1999. Modeling the aerobic growth and decline of Staphylococcus aureus as affected by pH and potassium sorbate concentration. J. Food Protect., 62: 356-362.
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