期刊
BIORESOURCE TECHNOLOGY
卷 131, 期 -, 页码 515-520出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.12.176
关键词
Primary settling tank effluent; Anaerobic digester effluent; Microalgae cultivation; Lipid production; Biomass production
资金
- Advanced Biomass R&D Center (ABC) of Global Frontier Project
- Ministry of Education Science and Technology [ABC-2012-053880]
- Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korea government Ministry of Knowledge Economy [2012T100201665]
In order to reduce input cost for microalgal cultivation, we investigated the feasibility of wastewater taken from a municipal WWTP in Busan, Korea as wastewater nutrients. The wastewaters used in this study were the effluent from a primary settling tank (PS), the effluent from an anaerobic digestion tank (AD), the conflux of wastewaters rejected from sludge-concentrate tanks and dewatering facilities (CR), and two combined wastewaters of AD:PS (10:90, v/v) and AD:CR (10:90, v/v). Chlorella sp. ADE5, which was isolated from the AD, was selected for the feasibility test. The highest biomass production (3.01 g-dry cell weight per liter) of the isolate was obtained with the combined wastewater ADCR, and it was 1.72 times higher than that with BG 11 medium. Interestingly, the cells cultivated with wastewater containing PS wastewater were easily separated from the culture and improved lipid content, especially oleic acid content, in their cells. (C) 2013 Elsevier Ltd. All rights reserved.
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