期刊
BIORESOURCE TECHNOLOGY
卷 155, 期 -, 页码 136-143出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.12.060
关键词
Algal biofilms; Photobioreactor; Material properties
资金
- Natural Sciences and Engineering Research Council
- Ontario Graduate Scholarships
A parallel plate air lift reactor was used to examine the growth kinetics of mixed culture algal biofilms grown on various materials (acrylic, glass, polycarbonate, polystyrene and cellulose acetate). The growth kinetics of the algal biofilms were non-linear overall and their overall productivities ranged from 1.10-2.08 g/m(2) day, with those grown on cellulose acetate having the highest productivity. Overall algal biofilm productivity was largely explained by differences in the colonization time which in turn was strongly correlated to the polar surface energy of the material, but weakly correlated to water-material contact angle. When colonization time was taken into account, the productivity for all materials except acrylic was not significantly different at approximately 2 g/m(2)/day. Lipid content of the algal biofilms ranged from 6% to 8% (w/w) and was not correlated to water-material contact angle or polar surface energy. The results have potential application for selecting appropriate materials for algal film photobioreactors. (C) 2013 Elsevier Ltd. All rights reserved.
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