Comparison of aerobic and anaerobic stability indices through a MSW biological treatment process
| Autor: | Antoni Sánchez, Sergio Ponsá, Javier Cerezo, Llorenç Alerm, Teresa Gea |
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| Rok vydání: | 2021 |
| Předmět: |
Municipal solid waste
Waste management Chemistry Compost Biodegradable waste Biodegradation engineering.material Aerobiosis Refuse Disposal Anaerobic digestion Waste treatment Bioreactors Organic fraction of municipal solid wastes Bioreactor engineering Respiration index Aerobie Biochemical methane potential Anaerobiosis Mechanical-biological treatment plant Municipal solid wastes Methane Waste Management and Disposal |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Recercat: Dipósit de la Recerca de Catalunya Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Popis: | A complex mechanical-biological waste treatment plant designed for the processing of mixed municipal solid wastes (MSW) and source-selected organic fraction of municipal solid wastes (OFMSW) has been studied by using stability indices related to aerobic (respiration index, RI) and anaerobic conditions (biochemical methane potential, BMP). Several selected stages of the plant have been characterized: waste inputs, mechanically treated wastes, anaerobically digested materials and composted wastes, according to the treatment sequence used in the plant. Results obtained showed that the main stages responsible for waste stabilization were the two first stages: mechanical separation and anaerobic digestion with a diminution of both RI and BMP around 40% and 60%, respectively, whereas the third stage, composting of digested materials, produced lesser biological degradation (20-30%). The results related to waste stabilization were similar in both lines (MSW and OFMSW), although the indices obtained for MSW were significantly lower than those obtained for OFMSW, which demonstrated a high biodegradability of OFMSW. The methodology proposed can be used for the characterization of organic wastes and the determination of the efficiency of operation units used in mechanical-biological waste treatment plants. |
| Databáze: | OpenAIRE |
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