期刊
BIORESOURCE TECHNOLOGY
卷 221, 期 -, 页码 455-460出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.09.070
关键词
Microalgae; Dairy wastewater; Phycoremediation; Biomass; Biofuel
资金
- [CSC-0203]
Dairy wastewater collected from local dairy industry was used as a growth media (without any pretreatment) for the cultivation of microalgae Acutodesmus dimorphus. The level of COD reduced over 90% (from 2593.33 +/- 277.37 to 215 +/- 7.07 mg/L) after 4 days of cultivation; whereas, ammoniacal nitrogen was consumed completely (277.4 +/- 10.75 mg/L) after 6 days of cultivation. Dry biomass of 840 and 790 mg/L was observed after 4 and 8 days of cultivation, respectively, which is about 5-6 times more than that of BG-11 grown culture (149 mg/L after 8 days). This biomass contains around 25% lipid and 30% carbohydrate, which can be further converted into biodiesel and bioethanol, respectively. Theoretical calculations based on the recently reported conversion yield suggest that 1 kg biomass of A. dimorphus might produce around 195 g of biodiesel and 78 g of bioethanol, which sums up to 273 g of biofuels. (C) 2016 Elsevier Ltd. All rights reserved.
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