The role of additives on anaerobic digestion: a review

Romero-Guiza, M. S., Vila, J., Mata-Alvarez, J., Chimenos, J. M. and Astals, S. (2016) The role of additives on anaerobic digestion: a review. Renewable and Sustainable Energy Reviews, 58 1486-1499. doi:10.1016/j.rser.2015.12.094

Author Romero-Guiza, M. S.
Vila, J.
Mata-Alvarez, J.
Chimenos, J. M.
Astals, S.
Title The role of additives on anaerobic digestion: a review
Journal name Renewable and Sustainable Energy Reviews   Check publisher's open access policy
ISSN 1364-0321
Publication date 2016-05
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1016/j.rser.2015.12.094
Open Access Status Not Open Access
Volume 58
Start page 1486
End page 1499
Total pages 14
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2017
Language eng
Formatted abstract
Anaerobic digestion is a worldwide technology for the treatment of organic waste streams with clear environmental benefits including generation of methane as renewable energy. However, the need to improve process feasibility of existing applications as well as to expand anaerobic digestion to a range of new substrates has raised interest on several intensifications techniques. Among them, the supplementation of inorganic and biological additives has shown good results at improving digesters performance. This manuscript presents a comprehensive review about recent advances in the utilization of inorganic and biological additives. On the one hand, reviewed inorganic additives comprise: (i) macro- (e.g. P, N and S) and micro- (e.g. Fe, Ni, Mo, Co, W and Se) nutrients supplements, (ii) ashes from waste incineration, (iii) compounds able to mitigate ammonia inhibition, and (iv) substances with high biomass immobilization capacity. Among them, iron (Fe0 and Fe(III)) has shown particularly promising results, which have been mainly related to their action as electron donor/acceptor and cofactor of key enzymatic activities. On the other hand, reviewed biological additives include: (i) the dosage of microbial inocula with high hydrolytic or methanogenic activity (bioaugmentation), and (ii) the addition of enzymes able to facilitate particulate organic matter solubilization.
Keyword Anaerobic digestion
Nutrient supplement
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: HERDC Pre-Audit
Advanced Water Management Centre Publications
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Created: Mon, 08 Feb 2016, 15:29:47 EST by Sergi Astals-garcia on behalf of Advanced Water Management Centre