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Title: Cross-study analysis of factors affecting algae cultivation in recycled medium for biofuel production

Journal Article · · Algal Research

Current high costs of commercial-scale algal biofuel production prevent the widespread use of this renewable fuel source. One cost-saving approach is the reuse of algae cultivation water after biomass harvesting, which reduces water pumping and treatment costs. However, dissolved compounds, cell debris, and microorganisms remaining in the water could affect subsequent algae generations. Previous studies demonstrate a variety of effects of recycled medium on algae growth, yet their results have not been collectively analyzed. Here, in this study, we integrate data across 86 studies to determine the relative importance of different factors influencing algae growth in recycled medium. We found that algae taxa can have the greatest influence, while the harvesting method is less influential on growth outcomes. This meta-analysis identifies favorable taxa and thus provides a tool for algae cultivation decision-making when medium reuse is an important driver. Results can also aid in estimating relative algae yield and growth rates for technoeconomic assessments that incorporate water recycling.

Research Organization:
Duke Univ., Durham, NC (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO); USDOE
Grant/Contract Number:
EE0007091
OSTI ID:
2281650
Alternate ID(s):
OSTI ID: 1460892
Journal Information:
Algal Research, Vol. 24; Related Information: S.E. Loftus, Z.I. Johnson, Algae growth in recycled cultivation water: database for meta-analysis, figshare (2017) http://dx.doi.org/10.6084/m9.figshare.4311851.v2.; ISSN 2211-9264
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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  • Journal of Chemical Technology & Biotechnology, Vol. 91, Issue 4 https://doi.org/10.1002/jctb.4655
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Cited By (1)

Reused Cultivation Water Accumulates Dissolved Organic Carbon and Uniquely Influences Different Marine Microalgae journal May 2019