Evaluación de lodos de PTAR municipales como inóculos en la digestión anaerobia de biorresiduos
The quantity and quality of inoculum used in the Anaerobic Digestion (AD), impact seriously on the biodegradability and the amount of methane produced. This research evaluated the effect of the source of inoculum municipal wastewater treatment plant (WWTP) on the production of methane as a source of...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Colombia |
| Institución: | Universidad Industrial de Santander |
| Repositorio: | Repositorio UIS |
| Idioma: | español |
| OAI Identifier: | oai:noesis.uis.edu.co:20.500.14071/7548 |
| Acceso en línea: | https://revistas.uis.edu.co/index.php/revistaion/article/view/5622 https://noesis.uis.edu.co/handle/20.500.14071/7548 |
| Access Level: | acceso abierto |
| Palabra clave: | Biowaste Renewable Energy Hydrolysis Anaerobic Sludge Methane Substrate-Inoculum Ratio. Biorresiduos Energía Renovable Hidrólisis Lodos Anaerobios Metano Relación Sustrato-Inóculo. Resíduos Biológicos Energía Renovável Hidrólise Lodo Anaeróbio Relação Substrato-Inoculo. |
| Sumario: | The quantity and quality of inoculum used in the Anaerobic Digestion (AD), impact seriously on the biodegradability and the amount of methane produced. This research evaluated the effect of the source of inoculum municipal wastewater treatment plant (WWTP) on the production of methane as a source of renewable energy AD from Municipal Biowaste (MB), analyzing the Substrate-Inoculum (S/I) ratio and the buffering capacity of the inoculum as key aspects. The experiments were performed on a laboratory scale by testing Biochemical Methane Potential (BMP) in the mesophilic range with a retention time of solids (RTS) 21 days; two inoculums from UASB reactors and the other of an anaerobic sludge digester. The S/I ratios ranged between 0.5 and 12gVSsubstrate gVS-1 inoculum. Although it was found that there were no statistically signifcant differences between the inoculum (p>0.05), the inoculum from the anaerobic digester presented a better performance because of its greater capacity buffer. The S/I ratio showed statistically signifcant differences (p<0,05), being below 1 ratio that presented the best productions of methane (> 70mLCH4 gVS-1 substrate ) hydrolysis rates (from 0,15 to 0,21d-1) and phases of lethargy (2,7-9,3d). |
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