TY - JOUR
T1 - Effects of nitrogen source heterogeneity on nutrient removal and biodiesel production of mono- and mix-cultured microalgae
AU - Zhu, Liandong
AU - Li, Shuangxi
AU - Hu, Tianyi
AU - Nugroho, Yohanes Kristianto
AU - Yin, Zhihong
AU - Hu, Dan
AU - Chu, Ruoyu
AU - Mo, Fan
AU - Liu, Chenchen
AU - Hiltunen, Erkki
PY - 2019/12/1
Y1 - 2019/12/1
N2 - 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.
AB - 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.
KW - Biodiesel productivity
KW - Chlorella vulgaris
KW - Microalgae
KW - Nitrogen source
KW - Nutrient removal
KW - Scenedesmus dimorphus
UR - http://www.scopus.com/inward/record.url?scp=85073245666&partnerID=8YFLogxK
U2 - 10.1016/j.enconman.2019.112144
DO - 10.1016/j.enconman.2019.112144
M3 - Journal article
SN - 0196-8904
VL - 201
SP - 1
EP - 8
JO - Energy Conversion and Management
JF - Energy Conversion and Management
M1 - 112144
ER -