Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Biopolymer fate and modelling in sequential mesophilic anaerobic-aerobic digestion of waste activated sludge |
| Abstract | In this work, the sequential anaerobic-aerobic digestion was applied to waste activated sludge of a full scale wastewater treatment plant. Aerobic temperatures of 20 and 37 °C were tested. Once verified the positive effect of the increased aerobic temperature on the process efficiency, kinetic tests were performed at T=37 °C to characterize VS degradation and protein and polysaccharides trends in both digestion phases. Different models (i.e. 1st order, Michaelis-Menten, Valentini et al., Contois) were tested and compared for VS degradation: Contois equation provided the best fitting of experimental data with correlation coefficients always >= 0.99. Kinetic modelling of biopolymers fate was performed by taking into account their production from the hydrolysis of particulate organic substrate and their biodegradation in the different anaerobic and aerobic reaction environments. Satisfactory and reliable predictions were obtained with correlation coefficients R2 equal to 0.98 and 0.95, for carbohydrates and proteins, respectively. |
| Source | 3rd IWA Specialized International Conference "Ecotechnologies for Wastewater Treatment (ecoSTP)" ., Cambridge UK,, 27-30 Jun |
| Keywords | Anaerobic-aerobic mesophilic sequential sludge digestion; kinetic modelling; biopolymers fate |
| Year | 2016 |
| Type | Contributo in atti di convegno |
| Authors | D. Mosca Angelucci, S. Di Cesare, M.C. Tomei* |
| Text | 360069 2016 Anaerobic aerobic mesophilic sequential sludge digestion; kinetic modelling; biopolymers fate Biopolymer fate and modelling in sequential mesophilic anaerobic aerobic digestion of waste activated sludge D. Mosca Angelucci, S. Di Cesare, M.C. Tomei Water Research Institute, C.N.R., Via Salaria km 29.300, CP 10, 00015 Monterotondo Stazione Rome Italy In this work, the sequential anaerobic aerobic digestion was applied to waste activated sludge of a full scale wastewater treatment plant. Aerobic temperatures of 20 and 37 °C were tested. Once verified the positive effect of the increased aerobic temperature on the process efficiency, kinetic tests were performed at T=37 °C to characterize VS degradation and protein and polysaccharides trends in both digestion phases. Different models i.e. 1st order, Michaelis Menten, Valentini et al., Contois were tested and compared for VS degradation Contois equation provided the best fitting of experimental data with correlation coefficients always >= 0.99. Kinetic modelling of biopolymers fate was performed by taking into account their production from the hydrolysis of particulate organic substrate and their biodegradation in the different anaerobic and aerobic reaction environments. Satisfactory and reliable predictions were obtained with correlation coefficients R2 equal to 0.98 and 0.95, for carbohydrates and proteins, respectively. Published version 3rd IWA Specialized International Conference Ecotechnologies for Wastewater Treatment ecoSTP . Cambridge UK, 27 30 Jun Internazionale Contributo Contributo in atti di convegno domenica.moscaangelucci MOSCA ANGELUCCI DOMENICA mariaconcetta.tomei TOMEI MARIA CONCETTA TA.P07.002.005 Rimozione di composti xenobiotici da acque di scarico |