Volatile Methyl Siloxanes as Key Biogas Pollutants: Occurrence, Impacts and Treatment Technologies
Por:
Rivera-Montenegro L., Valenzuela E.I., González-Sánchez A., Muñoz R., Quijano G.
Publicada:
1 ene 2023
Ahead of Print:
1 oct 2022
Resumen:
Volatile methyl siloxanes (VMS) are biogas pollutants generated from the metabolism of polydimethylsiloxanes (PDMS) in anaerobic digestion processes. In the past, VMS were considered an issue only for biogas produced in landfills. However, the widespread presence of VMS in different types of biogas has been demonstrated in recent years as a consequence of the intensive use of PDMS in the formulation of personal care products, industrial lubricants, glues, paints, and detergents. Burning biogas (or biomethane) laden with VMS leads the formation of silicate (SiO2) deposits, resulting in abrasion and severe lubrication issues, which finally produce irreversible damage to energy production devices. The present work provides a comprehensive review of the VMS concentrations recently reported in several types of biogas, as well as the physical–chemical technologies available on a commercial scale for the removal of VMS. Alternative biological processes for VMS removal are also described, including the most recent advances in microbial degradation mechanisms, bioreactor configurations, and operation modes. Critical research niches and challenges towards the consolidation of biotechnologies as efficient and cost-effective VMS treatment systems are identified and critically discussed. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Filiaciones:
Rivera-Montenegro L.:
Laboratory for Research on Advanced Process for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
Valenzuela E.I.:
Laboratory for Research on Advanced Process for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
González-Sánchez A.:
Instituto de Ingeniería, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico City, C.P. 04510, Mexico
Muñoz R.:
Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n, Valladolid, 47011, Spain
Quijano G.:
Laboratory for Research on Advanced Process for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
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