Thinking outside of the box: potential of zooplankton for microalgae harvesting

Li, Yan, Mangott, Arnold, Grierson, Scott, and Schenk, Peer M. (2013) Thinking outside of the box: potential of zooplankton for microalgae harvesting. Biofuels, 4 (3). pp. 263-266.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website:


[Extract] With the growing tension between freshwater resources and arable land, the implications of microalgae for future food production, CO₂ sequestration and biofuel supply are increasingly compelling [1,2]. As microalgae harvesting could potentially use up to 84.9% of the total energy consumed over the product life cycle, this process has become a major bottleneck hindering the development of the industry [3]. There are a multitude of techniques used for microalgae dewatering. Some are quite rapid and energy intensive, whereas others are more passive and use less energy input, but are often more time consuming [4]. As such, there is an urgent need to develop new harvesting techniques that are fast, reliable, low cost, energy efficient and environmentally friendly. Zooplankton, a common unwelcomed, contaminant featuring in cultivation systems, may represent a new option for microalgae harvesting.

The occurrence of zooplankton in microalgae cultures is common and one of the major obstacles impeding the sustained large-scale cultivation of microalgae. Due to their high proliferation rate and incredible speed of capturing microalgae, zooplankton often become a deleterious indicator for the health status of microalgae cultures, and are generally perceived as a negative. Nevertheless, the aquaculture industry has developed successful procedures to maintain and control zooplankton cultures, and to make full use of their environmental and nutrient potential in aquatic animal hatcheries, nurseries and larval rearing. This article will discuss the technical and economic feasibility of adopting zooplankton as a novel harvesting method, and provide an alternative view of the potential benefit of developing certain zooplankton strains for microalgae preconcentration.

Item ID: 28118
Item Type: Article (Research - C1)
ISSN: 1759-7269
Keywords: biomass, efficiency, harvest, microalgae, processing, zooplankton
Funders: Australian Research Council (ARC), JCU-MBD-Advanced Manufacturing Cooperative Research Centre
Date Deposited: 28 Jul 2013 23:33
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 @ 60%
82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8203 Industrial Crops > 820399 Industrial Crops not elsewhere classified @ 40%
Downloads: Total: 12
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page