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Cultivation of microalgae species in tertiary municipal wastewater supplemented with CO2 for nutrient removal and biomass production

Title
Cultivation of microalgae species in tertiary municipal wastewater supplemented with CO2 for nutrient removal and biomass production
Author
El Sayed Adel Farid Salama
Issue Date
2013-09
Publisher
ELSEVIER SCIENCE BV
Citation
ECOLOGICAL ENGINEERING, v. 58, Page. 142-148
Abstract
This study demonstrates the potential for algae-based biofuel production by coupling advanced wastewater treatment with microalgae cultivation for low-cost lipid production. Three species (Chlorella vulgaris, Scenedesmus obliquus and Ourococcus multisporus) with higher biomass yield were selected and cultured in wastewater amended with 15% CO2. C. vulgaris, S. obliquus and O. multisporus showed optimal specific growth rates (mu(opt)) of 1.37, 1.14 and 1.00 day(-1), respectively, and almost complete removal (˃99%) of nitrogen and phosphorus within 4 days. The highest specific lipid productivity was 0.164 g-lipids g-cell(-1) day(-1) and oleic acid was increased to 44% in C. vulgaris after 7 days of cultivation in the presence of CO2. It was concluded that C. vulgaris is a good potential source for the production of biodiesel coupled with nutrient removal from wastewater. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11754/53876
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INDUSTRY-UNIVERSITY COOPERATION FOUNDATION[S](산학협력단) > ETC
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