Effective harvesting of low surface-hydrophobicity microalgae by froth flotation

Garg, Sourabh, Wang, Liguang and Schenk, Peer M. (2014) Effective harvesting of low surface-hydrophobicity microalgae by froth flotation. Bioresource Technology, 159 437-441. doi:10.1016/j.biortech.2014.03.030

Author Garg, Sourabh
Wang, Liguang
Schenk, Peer M.
Title Effective harvesting of low surface-hydrophobicity microalgae by froth flotation
Journal name Bioresource Technology   Check publisher's open access policy
ISSN 0960-8524
Publication date 2014-05-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.biortech.2014.03.030
Open Access Status Not yet assessed
Volume 159
Start page 437
End page 441
Total pages 5
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 1502 Bioengineering
2305 Environmental Engineering
2311 Waste Management and Disposal
Abstract Microalgae harvesting by air flotation is a promising technology for large-scale production of biofuel, feed and nutraceuticals from algae. With an adherence-to-hydrocarbon method and two different types of flotation cells (mechanically agitated cell and Jameson cell), microalgal surface hydrophobicity and bubble size were identified to be critical for effective froth flotation of microalgae. Freshwater alga Chlorella sp. BR2 showed naturally a high hydrophobicity and an ideal response to flotation. However, many marine microalgae possess a low surface hydrophobicity and are thus difficult to harvest. This paper shows that a step-wise optimization approach can substantially improve the flotation of a low surface hydrophobicity marine microalga, Tetraselmis sp. M8, to near full recovery with an enrichment ratio of 11.4.
Keyword Agricultural Engineering
Biotechnology & Applied Microbiology
Energy & Fuels
Biotechnology & Applied Microbiology
Energy & Fuels
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 15 March 2014.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
School of Agriculture and Food Sciences
Official 2015 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 22 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 26 Mar 2014, 07:15:16 EST by Prof Peer Schenk on behalf of Qld Alliance for Agriculture and Food Innovation