Joe A. Gallagher
Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux))
Gallagher, Joe A.; Turner, Lesley B.; Adams, Jessica M.M.; Dyer, Philip W.; Theodora, Michael K.
Authors
Lesley B. Turner
Jessica M.M. Adams
Professor Philip Dyer p.w.dyer@durham.ac.uk
Professor
Michael K. Theodora
Abstract
Macroalgal water content is an on-going problem for the use of readily accessible seaweeds in sustainable biorefining, including fuel production. Silage is a reduced-water, compactable, easily stored, transportable material. Ensiling could establish a non-seasonal supply of preserved algal biomass, but requires high initial dry matter content to mitigate environmental pollution risks from effluent. This study investigated potential dewatering methods for kelp harvested throughout the year. Treatments included air-drying, osmotic media and acids. Significant interactions between treatment and harvest-time were observed for traits of interest. Fresh weight loss during treatment was composed of changes in water and dry matter content. Air-drying gave reliable increase in final dry matter content; in summer and autumn 30% dry matter content was reached after 24 h. Dilute hydrochloric acid reduced stickiness and rendered material suitable for dewatering by screw-pressing; it may be possible to use the consequent pH reduction to promote efficient preservation.
Citation
Gallagher, J. A., Turner, L. B., Adams, J. M., Dyer, P. W., & Theodora, M. K. (2016). Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux)). Bioresource Technology, 224, 662-669. https://doi.org/10.1016/j.biortech.2016.11.091
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 22, 2016 |
Online Publication Date | Nov 24, 2016 |
Publication Date | Jan 1, 2016 |
Deposit Date | Feb 15, 2017 |
Publicly Available Date | Feb 15, 2017 |
Journal | Bioresource Technology |
Print ISSN | 0960-8524 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 224 |
Pages | 662-669 |
DOI | https://doi.org/10.1016/j.biortech.2016.11.091 |
Public URL | https://durham-repository.worktribe.com/output/1365405 |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/).
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