期刊
BIORESOURCE TECHNOLOGY
卷 247, 期 -, 页码 784-793出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.09.152
关键词
Chlorella pyrenoidosa; Alcohol wastewater; Anaerobically digested starch wastewater; Lipid content; Bacterial contamination
资金
- National Natural Science Foundation of China [51478324]
- Natural Science Foundation of Hunan Province [2016JJ3055]
Alcohol wastewater (AW) as carbon source for enhancing Chlorella pyrenoidosa growth and lipid accumulation in anaerobically digested starch wastewater (ADSW) was performed in outdoor cultivation. The biomass and lipid production significantly increased while adding optimal amount of AW (AW/ADSW = 1: 15) during exponential phase. In comparison with blank ADSW culture, the optimal AW addition increased the biomass production, lipid content and productivity by 35.29%, 102.68% and 227.91%, respectively. However, AW addition caused severe bacterial contamination and the total bacterial increased by 4.62-fold. Simultaneously, the optimal consortia of microalgae/bacteria effectively removed nutrients from the wastewater, including 405.18 +/- 36.47 mg CODCr/L/day, 49.15 +/- 5.54 mg N/L/day and 6.72 +/- 1.24 mg P/L/day.
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