Effect of mine wastewater on nutrient removal and lipid production by a green microalga Micratinium reisseri from concentrated municipal wastewater

被引：42

作者：

Ji, Min-Kyu ^{[1
]}

Kabra, Akhil N. ^{[1
]}

Salama, El-Sayed ^{[1
]}

Roh, Hyun-Seog ^{[1
]}

Kim, Jung Rae ^{[2
]}

Lee, Dae Sung ^{[3
]}

Jeon, Byong-Hun ^{[1
]}

机构：

[1] Yonsei Univ, Dept Environm Engn, Wonju 220710, South Korea

[2] Pusan Natl Univ, Sch Chem & Biomol Engn, Pusan 609735, South Korea

[3] Dong A Univ, Dept Energy & Mineral Resources Engn, Pusan 604714, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 157卷

基金：

新加坡国家研究基金会;

关键词：

Micratinium reisseri; Mine wastewater; Municipal wastewater; Nutrient removal; Lipid productivity; CHLORELLA-PYRENOIDOSA; FATTY-ACID; GROWTH; IRON; ACCUMULATION; CULTIVATION; NITROGEN; BIOMASS; PRECIPITATION; FLOCCULATION;

D O I：

10.1016/j.biortech.2014.01.087

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Effect of mine wastewater on the nutrient removal efficiency of a green microalga Micratinium reisseri from concentrated municipal wastewater (CMW) with simultaneous lipid production was investigated. Different dilution ratios (1-10%) of CMW either with mine wastewater (MWF) or mine wastewater without Fe (MWOF) were used. M. reisseri showed the highest growth (0.8 g L (1)) and nutrient uptake (35.9 mg TN L (1) and 5.4 mg TP L (1)) at 3% MWF ([Fe](tot) = 6.7 mg L (1)), and the highest lipid productivity (10.4 mg L (1) day (1)) at 5% MWF ([Fe](tot) = 11.2 mg L (1)) after 15 days. CMW supported the algal autoflocculation due to formation of phosphate, calcium and magnesium precipitates at a high suspension pH. Fatty acid methyl ester analysis revealed that the microalgal lipids possessed 79-82% of C16/C18 fatty acids. Application of mine wastewater improved the nutrient removal efficiency, growth and lipid productivity of M. reisseri cultivated in CMW. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：84 / 90

页数：7

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