Simultaneous treatment of food-waste recycling wastewater and cultivation of Tetraselmis suecica for biodiesel production

There is an increasing interest in the use of cultivated microalgae to simultaneously produce biodiesel and remove nutrients from various wastewaters. For this purpose, Tetraselmis suecica was cultivated in flasks and fermenters using diluted food-waste recycling wastewater (FRW). The effect of FRW...

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Bibliographic Details
Published in:Bioprocess and biosystems engineering 2015-07, Vol.38 (7), p.1393-1398
Main Authors: Heo, Sung-Woon, Ryu, Byung-Gon, Nam, Kibok, Kim, Woong, Yang, Ji-Won
Format: Article
Language:English
Subjects:
Algae
Ammonium
biodiesel
Biodiesel fuels
Bioengineering
Biofuels
Bioremediation
Biotechnology
Chemistry
Chemistry and Materials Science
Chlorophyta - growth & development
Chlorophyta - metabolism
containers
Cultivation
Environmental Engineering/Biotechnology
fermenters
Food
Food Science
Food waste
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Microalgae
Nutrient concentrations
Nutrient removal
nutrients
Original Paper
phosphates
Recycling
Tetraselmis suecica
Waste recycling
Waste Water
wastewater
Water treatment
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Summary:There is an increasing interest in the use of cultivated microalgae to simultaneously produce biodiesel and remove nutrients from various wastewaters. For this purpose, Tetraselmis suecica was cultivated in flasks and fermenters using diluted food-waste recycling wastewater (FRW). The effect of FRW dilution on T. suecica growth and nutrient removal was initially tested in flasks. The maximal microalgal concentration after 14 days was in medium with a twofold dilution (28.3 × 10⁶ cells/mL) and a fivefold dilution (25.5 × 10⁶ cells/mL). When fivefold diluted medium was used in fermenters, the final dry cell weight of T. suecica was 2.0 g/L. The removal efficiencies of ammonium and phosphate in the fermenters were 99.0 and 52.3 %, respectively. In comparison with the results of previous studies, the growth data of T. suecica in the FRW medium indicate that microalgal cultivation system incorporating removal of nutrients in FRW is feasible at the field level.
ISSN:1615-7591
1615-7605
DOI:10.1007/s00449-015-1380-0