Effects of nitrogen source heterogeneity on nutrient removal and biodiesel production of mono- and mix-cultured microalgae

被引：101
作者：
Zhu, Liandong [1 ,2 ,3 ]
Li, Shuangxi [1 ,2 ]
Hu, Tianyi [1 ,2 ]
Nugroho, Yohanes K. [4 ]
Yin, Zhihong [1 ,2 ]
Hu, Dan [1 ,2 ]
Chu, Ruoyu [1 ,2 ]
Mo, Fan [1 ,2 ]
Liu, Chenchen [1 ,2 ]
Hiltunen, Erkki [3 ]
机构：
[1] Wuhan Univ, Sch Resource & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China
[2] Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, 129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China
[3] Univ Vaasa, Sch Technol & Innovat, POB 700, FI-65101 Vaasa, Finland
[4] Aalborg Univ, Mat & Prod, Copenhagen, Denmark
来源：
ENERGY CONVERSION AND MANAGEMENT | 2019年 / 201卷
关键词：
Microalgae; Chlorella vulgaris; Scenedesmus dimorphus; Nitrogen source; Nutrient removal; Biodiesel productivity; MUNICIPAL WASTE-WATER; CHLORELLA-ZOFINGIENSIS; LIPID PRODUCTIVITY; BIOFUEL PRODUCTION; LARGE-SCALE; BIOMASS; CULTIVATION; GROWTH; ACCUMULATION; PHOSPHORUS;
D O I：
10.1016/j.enconman.2019.112144
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Effects of nitrogen source inhomogeneity on nutrient removal and biodiesel production of mono- and mix-cultured microalgae were investigated in this study. The microalgal growth characteristics, lipid accumulation, biodiesel production and nutrient removal were determined by mono- or co-culturing microalgae Chlorella vulgaris and Scenedesmus dimorphus in media with different nitrogen sources. The results showed that microalgae cultivated in media with different nitrogen sources indicated higher nitrogen removal, biomass increase and productivities of biomass, lipids and biodiesel than media with the sole nitrogen source. As for the microalgae grown in media with the same nitrogen source, the pattern for the lipid content was in the relationship C. vulgaris > mixed culture > S. dimorphus. The fatty acids of microalgae mainly consisted of C16:0, C16:1, C18:0, C18:2 and C18:3, accounting for 79.6-90.6% of the total. The biodiesel production in this study ranged from 8.5 to 11.2 g-biodiesel/100 g-dry weight. This study presents one of the few studies, suggesting that nitrogen source itself can influence the nutrient removal and biodiesel production of mono- and mix-cultured microalgae.
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页数：8
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