Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux))

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Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux)). / Gallagher, Joseph; Turner, Lesley; Adams, Jessica M. M.; Dyer, Philip W.; Theodorou, Michael K.

In: Bioresource Technology, Vol. 224, 01.01.2017, p. 662-669.

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Gallagher, Joseph ; Turner, Lesley ; Adams, Jessica M. M. ; Dyer, Philip W. ; Theodorou, Michael K. / Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux)). In: Bioresource Technology. 2017 ; Vol. 224. pp. 662-669.

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@article{3ba6f13ac5814deca2be20a4b402a9c1,
title = "Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux))",
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",
keywords = "biorefining-feedsock preservation, ensiling, macroalgae, seasonal variation, silage effluent production/reduction",
author = "Joseph Gallagher and Lesley Turner and Adams, {Jessica M. M.} and Dyer, {Philip W.} and Theodorou, {Michael K.}",
note = "EP/K014900/1",
year = "2017",
month = jan,
day = "1",
doi = "10.1016/j.biortech.2016.11.091",
language = "English",
volume = "224",
pages = "662--669",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Dewatering treatments to increase dry matter content of the brown seaweed, kelp (Laminaria digitata ((Hudson) JV Lamouroux))

AU - Gallagher, Joseph

AU - Turner, Lesley

AU - Adams, Jessica M. M.

AU - Dyer, Philip W.

AU - Theodorou, Michael K.

N1 - EP/K014900/1

PY - 2017/1/1

Y1 - 2017/1/1

N2 - 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

AB - 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

KW - biorefining-feedsock preservation

KW - ensiling

KW - macroalgae

KW - seasonal variation

KW - silage effluent production/reduction

UR - http://hdl.handle.net/2160/44231

U2 - 10.1016/j.biortech.2016.11.091

DO - 10.1016/j.biortech.2016.11.091

M3 - Article

C2 - 27956334

VL - 224

SP - 662

EP - 669

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -

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