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TitleAerobic and facultative bacteria: working horses at the service of anaerobic digestion
Author(s)Duarte, Maria Salomé Lira
Oliveira, João Vítor
Magalhães, Carla Isabel Pereira
Salvador, Andreia Filipa Ferreira
Carvalho, Ana Rita Castro
Stams, Alfons Johannes Maria
Cavaleiro, Ana Júlia
Pereira, M. A.
Alves, M. M.
KeywordsAnaerobic digestion
Aerobic and facultative bacteria
Issue date2019
CitationDuarte, Maria Salomé; Oliveira, João V.; Magalhães, C. P.; Salvador, Andreia F.; Castro, Rita; Stams, A. J. M.; Cavaleiro, Ana Júlia; Pereira, M. Alcina; Alves, M. Madalena, Aerobic and facultative bacteria: working horses at the service of anaerobic digestion. AD16 - IWA World Conference on Anaerobic Digestion. Delft, The Netherlands, June 23-27, 2019.
Abstract(s)It is clear that aerobic and facultative anaerobic bacteria have an important role in the first steps of the anaerobic digestion (AD) process, especially when complex organic compounds are degraded. However, their diversity, abundance and function, related to the fine control of process variables such as pH and ORP, and the potential establishment of networks with methanogens and acetogens are far from being fully understood. Here we show some examples demonstrating that microaerophilic and aerobic conditions are critical for accelerating the methane production rates from hydrophobic compounds such as lipids and hydrocarbons. In the later case, a combination of aerobic with methanogenic conditions allow to convert hydrocarbons to methane at accelerated rates, with bacterial lipids as main intermediates. We believe that hybrid fine-controlled microaerophilic AD processes will emerge as the next generation of applications of AD technology to boost the methane production rate from a myriad of anaerobically slow degraded complex substrates
TypeConference paper
Publisher version
AccessOpen access
Appears in Collections:CEB - Artigos em Livros de Atas / Papers in Proceedings

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