Algal growth and community structure in a mixed-culture system using coal seam gas water as the water source

Buchanan, Jessica, Slater, Frances R., Bai, Xue and Pratt, Steven (2013) Algal growth and community structure in a mixed-culture system using coal seam gas water as the water source. Environmental Technology, 34 6: 695-701. doi:10.1080/09593330.2012.715676


Author Buchanan, Jessica
Slater, Frances R.
Bai, Xue
Pratt, Steven
Title Algal growth and community structure in a mixed-culture system using coal seam gas water as the water source
Journal name Environmental Technology   Check publisher's open access policy
ISSN 0959-3330
1479-487X
Publication date 2013
Year available 2012
Sub-type Article (original research)
DOI 10.1080/09593330.2012.715676
Open Access Status
Volume 34
Issue 6
Start page 695
End page 701
Total pages 7
Place of publication Oxfordshire, United Kingdom
Publisher Taylor and Francis
Collection year 2013
Language eng
Formatted abstract
Coal seam gas (CSG) is being touted as a transition fuel as the world moves towards low-carbon economies. However, the development of CSG reserves will generate enormous volumes of saline water. In this work, we investigate the potential of
using this saline water to support mass algae production.Water and brine from a CSG water treatment facility (1.6 and 11.6 g total dissolved solids per litre (TDS L1) respectively) were inoculated with algal biomass from freshwater and seawater
environments and supplemented with nutrients in open, fed-batch reactors. Significant algal growth was recorded, with maximum specific growth rates in CSG water and CSG brine of 0.20 ± 0.05 d−1 and 0.26 ± 0.04 d−1 respectively. These
maximum specific growth rates were equal to or greater than specific growth rates in deionized water and seawater diluted to the same salinity. However, algal growth lag time in CSG brine was between 7 and 9 times longer than in other waters.
Microscopy and terminal-restriction fragment length polymorphism (T-RFLP) were used to monitor community structure in the reactors. The same few algal species dominated all of the reactors, except for the CSG brine reactor at day 15. This result indicates that conditions in CSG brine select for different species of algae compared to seawater of the same salinity and other waters tested. The findings suggest that mass algae production in CSG water is feasible but algae community composition may be a function of CSG water chemistry. This has implications for the downstream use of algae.
Keyword Algae
Coal seam gas water
T-RFLP
Algal analysis
Salinity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Version of record first published: 06 Sep 2012

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2013 Collection
Advanced Water Management Centre Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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Created: Thu, 04 Apr 2013, 08:38:28 EST by Mr Steven Pratt on behalf of School of Chemical Engineering