期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 18, 页码 8639-8645出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.03.037
关键词
Chlorella sp.; Effluent water; Lipid productivity; Nutrients removal; Filtration
资金
- Brain Korea 21 Program
- National Research Foundation of Korea [과C6B1708] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study assessed the usability of effluent water discharged from a secondary municipal wastewater treatment plant for mass cultivation of microalgae for biofuel production. It was observed that bacteria and protozoa in the effluent water exerted a negative impact on the growth of Chlorella sp. 227. To reduce the effect, filtration or UV-radiation were applied on the effluent water as pre-treatment methods. Of all the pretreatment options tested, the filtration (by 0.2 mu m) resulted in the highest biomass and lipid productivity. To be comparable with the growth in the autoclaved effluent water, the filtration with a proper pore size filter (less than 0.45 mu m) or UV-B radiation of a proper dose (over 1620 mJ cm(-2)) are proposed. These findings led us to conclude that the utilization can be realized only when bacteria and other microorganisms are greatly reduced or eliminated from the effluent prior to its use. (C) 2011 Elsevier Ltd. All rights reserved.
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