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科研成果
硕士生褚若愚,朱联东的论文在BIORESOURCE TECHNOLOGY刊出
发布时间:2021-12-03 16:23:00     发布者:易真     浏览次数:

标题: Recycling spent water from microalgae harvesting by fungal pellets to re-cultivate Chlorella vulgaris under different nutrient loads for biodiesel production

作者: Chu, RY (Chu, Ruoyu); Hu, D (Hu, Dan); Zhu, LD (Zhu, Liandong); Li, SX (Li, Shuangxi); Yin, ZH (Yin, Zhihong); Yu, YJ (Yu, Yunjiang)

来源出版物: BIORESOURCE TECHNOLOGY : 344 文献号: 126227 DOI: 10.1016/j.biortech.2021.126227 子辑: B 出版年: JAN 2022

摘要: Fungal pellet is an emerging material to collect oleaginous microalgae, but rare studies have noticed that harvested water is available resource for the next round of cultivation. To systematically optimize regrowth performances of microalgae Chlorella vulgaris, separated water after harvesting by fungi Aspergillus oryzae was prepared under different N/P ratios. The results showed that chlorophylls and enzymes were significantly affected by the proportion of N and P. Although nutrient deficiency was functioned as a stress factor to restrict carbohydrate and protein synthesis, lipid content was obviously increased by 12.69%. The percentage of saturated fatty acids associated with oxidation stability increased, while this part in fresh wastewater accounted for only 36.96%. The favorable biomass concentration (1.37 g/L) with the highest lipid yield (0.42 g/L) appeared in N/P of 6:1. More strikingly, suitable conditions could save 52.4% of cultivation costs. These experiments confirmed that reusing bioflocculated water could be effectively utilized for biodiesel production.

作者关键词: Water recycling; Microalgae; Re-cultivation; Phosphorus limitation; Biodiesel

地址: [Chu, Ruoyu; Hu, Dan; Zhu, Liandong; Li, Shuangxi; Yin, Zhihong] Wuhan Univ, Hubei Key Lab Biomass Resources Chem & Environm B, Hubei Int Sci & Technol Cooperat Base Sustainable, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

[Yu, Yunjiang] Minist Ecol & Environm, South China Inst Environm Sci, State Environm Protect Key Lab Environm Pollut Hl, Guangzhou 510655, Peoples R China.

通讯作者地址: Zhu, LD (通讯作者),Wuhan Univ, Hubei Key Lab Biomass Resources Chem & Environm B, Hubei Int Sci & Technol Cooperat Base Sustainable, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址: ldzhu@whu.edu.cn

影响因子:9.642


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