Academic Journal
Performance evaluation of micro-aerobic hydrolysis of mixed sludge: Optimum aeration and effect on its biochemical methane potential
| العنوان: | Performance evaluation of micro-aerobic hydrolysis of mixed sludge: Optimum aeration and effect on its biochemical methane potential |
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| المؤلفون: | Montalvo, Silvio, Ojeda, Felipe, Huiliñir, César, Guerrero, Lorna, Borja Padilla, Rafael, Castillo, Alejandra |
| المساهمون: | Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) |
| بيانات النشر: | Taylor & Francis |
| سنة النشر: | 2016 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Aerobic hydrolysis, Anaerobic digestion, Methane production, Micro-aeration, Mixed sludge |
| الوصف: | 31 Páginas; 8 Figuras; 3 Tablas ; This study evaluated the performance of a micro-aerobic hydrolysis of mixed sludge and its influence as a pretreatment of this waste for its subsequent anaerobic digestion. Three experimental series were carried out to evaluate the optimum micro-aeration levels in the range from 0.1 to 0.5 air volume/min.reactor volume (vvm) and operation times within the range of 24–60 h. The maximum methane yield [35 mL CH4/g volatile suspended solids (VSS) added] was obtained for an aeration level of 0.35 vvm. This methane yield value increased 114% with respect to that obtained with the non-aerated sludge. In the micro-aeration process carried out at an aeration level of 0.35 vvm, increases in soluble proteins and total sugars concentrations of 185% and 192% with respect to their initial values were found, respectively, after 48 h of aeration. At the above micro-aerobic conditions, soluble chemical oxygen demand (CODS) augmented 150%, whereas VSS content decreased until 40% of their initial respective values. Higher COD increases and VSS decreases were found at 60 h of micro-aeration, but the above parameters did not vary significantly with respect to the values found at 48 h. ; The authors acknowledge gratefully the financial support of FONDECYT through Project 1030315 (Chile). ; Peer reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1093-4529 1532-4117 |
| Relation: | Postprint; http://dx.doi.org/10.1080/10934529.2016.1215195; Sí; Journal of Environmental Science and Health, Part A: (2016); http://hdl.handle.net/10261/137944; http://dx.doi.org/10.13039/501100002850 |
| DOI: | 10.1080/10934529.2016.1215195 |
| DOI: | 10.13039/501100002850 |
| الاتاحة: | http://hdl.handle.net/10261/137944 https://doi.org/10.1080/10934529.2016.1215195 https://doi.org/10.13039/501100002850 |
| Rights: | open |
| رقم الانضمام: | edsbas.AE831780 |
| قاعدة البيانات: | BASE |
| تدمد: | 10934529 15324117 |
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| DOI: | 10.1080/10934529.2016.1215195 |