Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates

doi:10.1016/j.jclepro.2017.06.221

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	Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates
	Yang, Suo 1,2; Xu, Jin 1,2,3,4; Wang, Zhong-Ming 3; Bao, Lian-Jun 1,2; Zeng, Eddy Y.1,2
刊名	JOURNAL OF CLEANER PRODUCTION
	2017-10-15
卷号	164 页码:793-803
关键词	Microalgae Grass Anaerobically Digested Effluent Molasses Wastewater Anaerobically Digested Effluent Biomass Nitrogen Phosphorus
DOI	10.1016/j.jclepro.2017.06.221
文献子类	Article
英文摘要	Cultivation of microalgae in anaerobically digested effluent is beneficial for removal of nutrients, such as nitrogen and phosphorus, and heavy metals at reduced cost and generation of biomass to produce biofuels. In the present study, four strains of oleaginous microalgae, separated from fresh water in South China, were evaluated for their ability to remove nitrogen and phosphorus. The results showed that Scenedesmus sp. (GN 171) was capable of removing nitrogen and phosphorous in BG-11 medium at the rates of 97% and 99%. Two types of anaerobically digested effluents, i.e., grass anaerobically digested effluent and molasses wastewater anaerobically digested effluent, were chosen as the nutrient sources. These anaerobically digested effluents diluted in BG-11 medium or with tap water were used as the substitute medium to cultivate GN 171; other pretreatment methods, such as sterilization and dilution ratio, were also taken into consideration. A ratio of 1/3 for unsterilized grass anaerobically digested effluent/tap water mixture (designated as G4) was the optimal proportion for growth of GN 171 and removal of nitrogen and phosphorus at a large scale. The dry weight of GN 171 reached 3.2 g L-1, and the total lipid, carbohydrate and protein contents were 34%, 30% and 16% in G4. The efficacies for removal of total nitrogen, ammonia nitrogen, phosphorus and selected heavy metals were generally satisfactory. It seems possible to use ADE, rather than any artificial medium, as the sole nutrient source for microalgae production. (C) 2017 Published by Elsevier Ltd.
WOS关键词	WASTE-WATER TREATMENT ; ANAEROBIC-DIGESTION PERFORMANCE ; BIOMASS PRODUCTION ; LIQUID DIGESTATE ; LIGHT-INTENSITY ; SILAGE QUALITY ; CHLORELLA ; PHOSPHORUS ; NITROGEN ; GROWTH
语种	英语
WOS记录号	WOS:000409290700074
资助机构	Ministry of Science and Technology of China(2012ZX07503-003-002) ; Key Laboratory of Renewable Energy, Chinese Academy of Sciences(y507jb1001) ; Natural Science Foundation(2016A030312007)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/16289]
专题	中国科学院广州能源研究所
作者单位	1.Jinan Univ, Sch Environm, Guangzhou Key Lab Environm Exposure & Hlth, Guangzhou 510632, Guangdong, Peoples R China 2.Jinan Univ, Guangdong Key Lab Environm Pollut & Hlth, Guangzhou 510632, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 4.Jinan Univ, Dept Ecol, Guangzhou 510632, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Yang, Suo,Xu, Jin,Wang, Zhong-Ming,et al. Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates[J]. JOURNAL OF CLEANER PRODUCTION,2017,164:793-803.
APA	Yang, Suo,Xu, Jin,Wang, Zhong-Ming,Bao, Lian-Jun,&Zeng, Eddy Y..(2017).Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates.JOURNAL OF CLEANER PRODUCTION,164,793-803.
MLA	Yang, Suo,et al."Cultivation of oleaginous microalgae for removal of nutrients and heavy metals from biogas digestates".JOURNAL OF CLEANER PRODUCTION 164(2017):793-803.