Cultivation of a new microalga, Micractinium reisseri, in municipal wastewater for nutrient removal, biomass, lipid, and fatty acid production

被引：65
作者：
Abou-Shanab, Reda A. I. [1 ,2 ]
El-Dalatony, Marwa M. [1 ,2 ,3 ]
EL-Sheekh, Mostafa M. [3 ]
Ji, Min-Kyu [1 ]
Salama, El-Sayed [1 ]
Kabra, Akhil N. [1 ]
Jeon, Byong-Hun [1 ]
机构：
[1] Yonsei Univ, Dept Environm Engn, Wonju 220710, South Korea
[2] City Sci Res & Technol Applicat, Dept Environm Biotechnol, Alexandria 21934, Egypt
[3] Tanta Univ, Dept Bot, Fac Sci, Tanta 31527, Egypt
来源：
BIOTECHNOLOGY AND BIOPROCESS ENGINEERING | 2014年 / 19卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
microalgae; municipal wastewater; nutrient removal; lipid; fatty acids; LIGHT-INTENSITY; BIODIESEL; GROWTH; NITROGEN; CHLOROPHYCEAE; EXTRACTION; CO2;
D O I：
10.1007/s12257-013-0485-z
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Coupling of advanced wastewater treatment with microalgae cultivation for low-cost lipid production was demonstrated in this study. The microalgal species Micractinium reisseri and Scenedesmus obliquus were isolated from municipal wastewater mixed with agricultural drainage. M. reisseri was selected based on the growth rate and cultivated in municipal wastewater (influent, secondary and tertiary effluents) which varied in nutrient concentration. M. reisseri showed an optimal specific growth rate (mu(opt)) of 1.15, 1.04, and 1.01 1/day for the influent and the secondary and tertiary effluents, respectively. Secondary effluent supported the highest phosphorus removal (94%) and saturated fatty acid content (40%). The highest lipid content (40%), unsaturated fatty acid content, including monounsaturated and polyunsaturated fatty acids (66%), and nitrogen removal (80%) were observed for tertiary effluent. Fatty acids accumulating in the microalgal biomass (M. reisseri) were mainly composed of palmitic acid, oleic acid, linoleic acid, and a-linolenic acid. Cultivation of M. reisseri using municipal wastewater served a dual function of nutrient removal and biofuel feedstock generation.
引用
收藏
页码：510 / 518
页数：9
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