Nutrients recycling and biomass production from Chlorella pyrenoidos culture using anaerobic food processing wastewater in a pilot-scale tubular photobioreactor
Nutrients recycling and biomass production from Chlorella pyrenoidos culture using anaerobic food processing wastewater in a pilot-scale tubular photobioreactor
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在中试管式光生物反应器中利用厌氧食品加工废水进行蛋白核小球藻培养的营养物回收和生物质生产
DOI：
10.1016/j.chemosphere.2020.129459
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发表时间：
2021-05-01
期刊：
影响因子：
8.8
通讯作者：
Pi, He-Jie
中科院分区：
文献类型：
--
作者：
Tan, Xiao-Bo;Wan, Xi-Ping;Pi, He-Jie
利用厌氧食品废水培养微藻是实现微藻高产和营养物质循环利用的可行途径。采用管式光生物反应器对厌氧食品废水进行蛋白核小球藻的培养。该微藻在不同季节生长迅速，生物量可达1.83-2.10 g L-1，比生长速率为0.73-1.59 d（-1）。在管式光生物反应器中，生物污染和溶解氧被控制在适合藻类生长的水平。收获的生物质中的脂质含量为干重的8.1-15.3%，脂肪酸分析显示具有长碳链长度和高饱和度的高品质。藻类生长对废水中的污染物有较好的净化效果，对CODCr、TN和TP的去除率分别为42.3-53.8%、82.6-88.7%和59.7-67.6%。本研究成功地将微藻放大培养应用于厌氧食品加工废水中生物柴油的生产和废水的净化。(C)2020爱思唯尔有限公司版权所有。
Microalgae cultivation in anaerobic food wastewater was a feasible way for high biomass production and nutrients recycling. In this study, Chlorella pyrenoidosa culture on anaerobic food wastewater was processed outdoors using a pilot-scale tubular photobioreactor. The microalgae showed rapid growth in different seasons, achieving high biomass production of 1.83-2.10 g L-1 and specific growth rate of 0.73-1.59 d(-1). The biological contamination and dissolved oxygen were controlled at suitable levels for algal growth in the tubular photobioreactor. Lipids content in harvested biomass was 8.1-15.3% of dried weight, and the analysis in fatty acids revealed high quality with long carbon chain length and high saturation. Additionally, algal growth achieved effective pollutants purification from wastewater, removing 42.3-53.8% of CODCr, 82.6-88.7% of TN and 59.7-67.6% of TP. This study gave a successful application for scaled-up microalgae culture in anaerobic food processing wastewater for biodiesel production and wastewater purification. (C) 2020 Elsevier Ltd. All rights reserved.