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Macrofiltration-A leap towards high efficiency microalgal harvesting: A case study using Scenedesmus acuminatus
Xiao, Jingrong1,2; Liu, Rui1,2,3; Yang, Li1,2; Hu, Qiang1,2,4,5; Zhang, Xuezhi1,2
2019
Source PublicationALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
Volume37Issue:1Pages:1-10
AbstractIn order to develop efficient membrane based harvesting techniques to accelerate microalgal commercialization, macrofiltration membranes of mixed cellulose with pore sizes of 0.45, 1.2, 3, 5, and 8 mu m were evaluated for Scenedesmus acuminatus harvesting. The influences of pore size on the changes in membrane flux and flux recovery were investigated, followed by a SEM analysis of the fouled membranes. The performance of S. acuminatus harvesting using the 5 mu m membrane was then compared with an ultrafiltration membrane, with both operating under a cross-flow mode. Macrofiltration operated with dead-end mode was further developed to achieve higher flux and higher solid content in the harvested biomass. The results showed that the 5 mu m mixed cellulose membrane achieved the highest average flux due to its excellent anti-fouling performance. SEM images revealed that the presence of non-cellular and cellular foulants were responsible for the fouling of the smaller sized membranes, and membranes larger than 5 mu m, respectively. Macrofiltration membrane harvesting was more efficient when a dead-end rather than a cross-flow operation was used. The average flux from a multiple - times filtration cycle reached 1845 +/- 105 L.m(-2).h(-1) for the dead-end operated 5 mu m macrofiltration membrane, which was 16-fold higher than that obtained using a cross-flow ultrafiltration membrane (107 +/- 14 L.m(-2).h(-1)). The solid content of macrofiltration-harvested biomass was 24%. This high flux and high solid content achieved through macrofiltration represents a great leap towards high-efficiency microalgal harvesting.
SubtypeArticle
KeywordScenedesmus Acuminatus Mixed Cellulose Dead-end Cross-flow Ultrafiltration
DOI10.1016/j.algal.2018.11.001
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(31672625) ; One-Hundred Scholars Award from the Chinese Academy of Sciences(Y62305-1-Z01) ; National Natural Science Foundation of China(31672625) ; One-Hundred Scholars Award from the Chinese Academy of Sciences(Y62305-1-Z01)
Language英语
WOS Research AreaBiotechnology & Applied Microbiology
WOS SubjectBiotechnology & Applied Microbiology
WOS KeywordORGANIC-MATTER ; MEMBRANE ; ULTRAFILTRATION ; BIOMASS ; MICROFILTRATION ; CULTIVATION ; METABOLITES ; FILTRATION ; MARINE ; SIZE
WOS IDWOS:000454728200001
Funding OrganizationNational Natural Science Foundation of China(31672625) ; One-Hundred Scholars Award from the Chinese Academy of Sciences(Y62305-1-Z01) ; National Natural Science Foundation of China(31672625) ; One-Hundred Scholars Award from the Chinese Academy of Sciences(Y62305-1-Z01)
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/67784
Collection藻类生物学及应用研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Ctr Microalgal Biotechnol & Biofuels, Wuhan 430061, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Elect Engn Design Inst, SDIC Microalgae Biotechnol Ctr, Beijing 100142, Peoples R China
5.Beijing Key Lab Algae Biomass, Beijing 100142, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Jingrong,Liu, Rui,Yang, Li,et al. Macrofiltration-A leap towards high efficiency microalgal harvesting: A case study using Scenedesmus acuminatus[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2019,37(1):1-10.
APA Xiao, Jingrong,Liu, Rui,Yang, Li,Hu, Qiang,&Zhang, Xuezhi.(2019).Macrofiltration-A leap towards high efficiency microalgal harvesting: A case study using Scenedesmus acuminatus.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,37(1),1-10.
MLA Xiao, Jingrong,et al."Macrofiltration-A leap towards high efficiency microalgal harvesting: A case study using Scenedesmus acuminatus".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 37.1(2019):1-10.
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