Critical analysis of current microalgae dewatering techniques

Sharma, Kalpesh K., Garb, Sourabh, Li, Yan, Malekizadeh, Ali, and Schenk, Peer M. (2013) Critical analysis of current microalgae dewatering techniques. Biofuels, 4 (4). pp. 397-407.

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Abstract

Oil-accumulating microalgae have the potential to enable large-scale biodiesel production without competing for arable land or biodiverse natural landscapes. However, microalgae harvesting/dewatering is a major obstruction to industrial-scale processing for biofuel production. The dilute nature of microalgae in cultivation creates high operational costs for harvesting, thus making microalgal fuel less economical. Within the last decade, significant advances have been made to develop new technologies for dewatering or harvesting of microalgae. The choice of which harvesting technique to apply depends on the microalgae cell size and the desired product. Microalgae dewatering processes can broadly be classified as primary and secondary dewatering. This article provides an overview of current dewatering techniques along with a critical analysis of costs and efficiencies, and provides recommendations towards cost-effective dewatering.

Item ID: 28184
Item Type: Article (Research - C1)
ISSN: 1759-7269
Keywords: microalgae, secondary dewatering, flocculation, flotation, primary dewatering
Funders: Australian Research Council (ARC), Meat & Livestock Australia
Date Deposited: 06 Jan 2014 00:15
FoR Codes: 06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060701 Phycology (incl Marine Grasses) @ 50%
10 TECHNOLOGY > 1003 Industrial Biotechnology > 100302 Bioprocessing, Bioproduction and Bioproducts @ 50%
SEO Codes: 85 ENERGY > 8505 Renewable Energy > 850501 Biofuel (Biomass) Energy @ 50%
82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8203 Industrial Crops > 820399 Industrial Crops not elsewhere classified @ 50%
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