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Co-digestion strategies to enhance microalgae anaerobic digestion: a review

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Solé-Bundo_2019_RSER_postprint.pdf (582,8Kb)
 
10.1016/j.rser.2019.05.036
 
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Solé Bundó, MariaMés informacióMés informació
Passos, Fabiana Lopes del ReiMés informacióMés informació
Romero Güiza, Maycoll Stiven
Ferrer Martí, IvetMés informacióMés informacióMés informació
Astals, Sergi
Document typeArticle
Defense date2019-09
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
ProjectPRODUCCION DE BIOGAS A PARTIR DEL TRATAMIENTO DE AGUAS RESIDUALES EMPLEANDO CONSORCIOS DE MICROALGAS Y BACTERIAS EN FOTOBIOREACTORES CERRADOS (MINECO-CTQ2014-57293-C3-3-R)
INCOVER - Innovative Eco-Technologies for Resource Recovery from Wastewater (EC-H2020-689242)
Abstract
Microalgae biorefineries for the production of biofuels and high-value products have captured the attention of academia and industry. Implementing an anaerobic digestion step can enhance resource recovery from microalgae and microalgae residues. Anaerobic co-digestion, the simultaneous digestion of two or more substrates, is an opportunity to overcome the low biodegradability and the risk of ammonia inhibition associated with microalgae and microalgae residues mono-digestion. Besides, microalgae can also be used as co-substrate in biogas plants, with the aim of increasing the organic loading rate while providing alkalinity, macro- and micronutrients. Sewage sludge is the most researched co-substrate for microalgae since microalgae photobioreactors can be used for secondary, tertiary and anaerobic digestion supernatant treatment in wastewater treatment plants. However, microalgae and microalgae residues have been successfully co-digested with a wide variety of wastes, including crops, energy crops, paper waste, animal manure, vinasse, olive mill waste, and fat, oil and grease. Lipid-spent microalgae and glycerol co-digestion has also been largely researched due to the growing interest on microalgal-derived biodiesel. Most studies have assessed the impact of co-digestion on the methane yield and process kinetics through biochemical methane potential (BMP) tests. However, BMP test is not the most suitable method to assess the impact of co-digestion on other important factors such as supernatant nutrient content, digestate dewaterability, biosolids quality, and H2S concentration in the biogas. Overall, more lab-scale and pilot-scale continuous experiments are needed to get a holistic understanding of microalgal anaerobic co-digestion.
CitationSole, M. [et al.]. Co-digestion strategies to enhance microalgae anaerobic digestion: a review. "Renewable and sustainable energy reviews", Setembre 2019, vol. 112, p. 471-482. 
URIhttp://hdl.handle.net/2117/166243
DOI10.1016/j.rser.2019.05.036
ISSN1364-0321
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S1364032119303491
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  • Departament d'Enginyeria Civil i Ambiental - Articles de revista [3.398]
  • GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient - Articles de revista [225]
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