標題: | Cultivation of Chlorella sp GD using piggery wastewater for biomass and lipid production |
作者: | Kuo, Chiu-Mei Chen, Tsai-Yu Lin, Tsung-Hsien Kao, Chien-Ya Lai, Jinn-Tsyy Chang, Jo-Shu Lin, Chih-Sheng 生物科技學系 Department of Biological Science and Technology |
關鍵字: | Microalgae;Wastewater;Semi-continuous culture;Biomass;Lipid |
公開日期: | 1-十月-2015 |
摘要: | The development of a culture system for Chlorella sp. GD to efficiently produce biomass and oil for biodiesel production was investigated. Chlorella sp. GD was cultivated with 0%, 25%, 50%, 75% and 100% piggery wastewater (diluted by medium) at 300 mu mol m(-2) s(-1), a 2% CO2 aeration rate of 0.2 vvm and 26 +/- 1 degrees C; after a 10-day culture in batch cultures, the maximum specific growth rate and biomass productivity of the microalga obtained in 100% piggery wastewater were 0.839 d(-1) and 0.681 g L-1 d(-1), respectively. The highest lipid content and lipid productivity were 29.3% and 0.155 g L-1 d(-1) at 25% wastewater, respectively. In semi-continuous cultures, the biomass and lipid productivities with 25-75% wastewater ratios were greater than 0.852 and 0.128 g L-1 d(-1), respectively. These results show that Chlorella sp. GD grows efficiently in piggery wastewater, and that a stable growth performance was achieved for long-term microalgal cultivation in a semi-continuous culture. (C) 2015 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.biortech.2015.07.026 http://hdl.handle.net/11536/127973 |
ISSN: | 0960-8524 |
DOI: | 10.1016/j.biortech.2015.07.026 |
期刊: | BIORESOURCE TECHNOLOGY |
Volume: | 194 |
起始頁: | 326 |
結束頁: | 333 |
顯示於類別: | 期刊論文 |