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Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants

Michael L. Gerardo, Sofie Van Den Hende, Han Vervaeren, Thea Coward, Stephen C. Skill, Steve Skill Orcid Logo

Algal Research, Volume: 11, Pages: 248 - 262

Swansea University Author: Steve Skill Orcid Logo

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DOI (Published version): 10.1016/j.algal.2015.06.019

Abstract

Microalgae are a promising renewable feedstock for a diverse number of products such as fuels, fine chemicals, nutraceuticals, and cosmetics. The extraction and processing of biochemicals from microalgae require the handling of large volumes of feedstock, largely due to the small biomass to liquid r...

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Published in: Algal Research
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa28854
first_indexed 2016-06-13T18:24:58Z
last_indexed 2018-02-09T05:13:24Z
id cronfa28854
recordtype SURis
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spelling 2016-07-25T16:19:39.8277682 v2 28854 2016-06-13 Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants f7851c38f3019243981f40a4b271e7bb 0000-0001-6777-7488 Steve Skill Steve Skill true false 2016-06-13 BGPS Microalgae are a promising renewable feedstock for a diverse number of products such as fuels, fine chemicals, nutraceuticals, and cosmetics. The extraction and processing of biochemicals from microalgae require the handling of large volumes of feedstock, largely due to the small biomass to liquid ratio, typically <0.1% solids. This work reviews the developments in microalgae harvesting and details the underlying phenomena of each technology in relation to key physical parameters such as: size, morphology, surface charge, and density. A critical appraisal of each method is given in relation to biomass concentration, biomass recovery, energy consumption and integration into a biorefinery approach. Finally, we detail four microalgae harvesting case studies from pilot-plants across Northwest Europe. The case studies are: (1) membrane filtration of Scenedesmus sp. used for protein, carbohydrate and lipid extraction; (2) synergetic harvesting of cyanobacteria by autoflocculation and passive capillary dewatering for the production of bioactive extracts; and, (3) bioflocculation and filtering of wastewater-grown microalgae for the production of shrimp feed, biogas and fertilizer. Overall, this review highlights that there is considerable scope for further innovation in harvesting processes, especially with synergistic interactions that exploit multiple physical and chemical properties simultaneously. Journal Article Algal Research 11 248 262 31 12 2015 2015-12-31 10.1016/j.algal.2015.06.019 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2016-07-25T16:19:39.8277682 2016-06-13T16:34:23.8306712 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Michael L. Gerardo 1 Sofie Van Den Hende 2 Han Vervaeren 3 Thea Coward 4 Stephen C. Skill 5 Steve Skill 0000-0001-6777-7488 6
title Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
spellingShingle Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
Steve Skill
title_short Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
title_full Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
title_fullStr Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
title_full_unstemmed Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
title_sort Harvesting of microalgae within a biorefinery approach: A review of the developments and case studies from pilot-plants
author_id_str_mv f7851c38f3019243981f40a4b271e7bb
author_id_fullname_str_mv f7851c38f3019243981f40a4b271e7bb_***_Steve Skill
author Steve Skill
author2 Michael L. Gerardo
Sofie Van Den Hende
Han Vervaeren
Thea Coward
Stephen C. Skill
Steve Skill
format Journal article
container_title Algal Research
container_volume 11
container_start_page 248
publishDate 2015
institution Swansea University
doi_str_mv 10.1016/j.algal.2015.06.019
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 0
active_str 0
description Microalgae are a promising renewable feedstock for a diverse number of products such as fuels, fine chemicals, nutraceuticals, and cosmetics. The extraction and processing of biochemicals from microalgae require the handling of large volumes of feedstock, largely due to the small biomass to liquid ratio, typically <0.1% solids. This work reviews the developments in microalgae harvesting and details the underlying phenomena of each technology in relation to key physical parameters such as: size, morphology, surface charge, and density. A critical appraisal of each method is given in relation to biomass concentration, biomass recovery, energy consumption and integration into a biorefinery approach. Finally, we detail four microalgae harvesting case studies from pilot-plants across Northwest Europe. The case studies are: (1) membrane filtration of Scenedesmus sp. used for protein, carbohydrate and lipid extraction; (2) synergetic harvesting of cyanobacteria by autoflocculation and passive capillary dewatering for the production of bioactive extracts; and, (3) bioflocculation and filtering of wastewater-grown microalgae for the production of shrimp feed, biogas and fertilizer. Overall, this review highlights that there is considerable scope for further innovation in harvesting processes, especially with synergistic interactions that exploit multiple physical and chemical properties simultaneously.
published_date 2015-12-31T03:54:07Z
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score 11.048121

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