The joint effect of ammonium and pH on the growth of Chlorella vulgaris and ammonium removal in artificial liquid digestate

doi:10.1016/j.biortech.2021.124690

	The joint effect of ammonium and pH on the growth of Chlorella vulgaris and ammonium removal in artificial liquid digestate
	Jiang, Renyuan 1,3,4,5; Qin, Lei 3,4,5; Feng, Siran 2,5; Huang, Dalong 3,4,5; Wang, Zhongming 3,4,5; Zhu, Shunni 3,4,5
刊名	BIORESOURCE TECHNOLOGY
	2021-04-01
卷号	325 页码:10
关键词	Chlorella vulgaris Ammonium pH Free ammonia Cell components Extracellular organic matters
ISSN号	0960-8524
DOI	10.1016/j.biortech.2021.124690
通讯作者	Zhu, Shunni(zhusn@ms.giec.ac.cn)
英文摘要	Although ammonium containing digestate is an ideal alternative medium for microalgae cultivation, high ammonium or unfavorable pH may inhibit microalgal growth. In this study, the joint effect of ammonium and pH on the growth of C. vulgaris and nutrient removal in artificial digestate was investigated. Our results show that ammonium and pH both affected algal growth, but free ammonia (FA) was the main actual inhibitory factor. Algal specific growth rate presented a negative correlation with FA and their relationship was well fitted by a linear regression model. Microalgal growth was little affected below 36.8 mg L-1 FA, while the obvious inhibition occurred at 184 mg L-1 FA (EC50), indicating a high tolerance to FA. Ammonium removal was well described by a first-order kinetics model. FA stress stimulated the production of extracellular organic matters (EOMs), which was good for micmalgae adaptation but adverse to pollutant removal.
资助项目	National Natural Science Foundation of China[21878291] ; National Natural Science Foundation of China[51861145103] ; Natural Science Foundation of Guangdong Province, China[2018A030313883] ; Natural Science Foundation for Research Team of Guangdong Province, China[2016A030312007]
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000620173300018
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province, China ; Natural Science Foundation for Research Team of Guangdong Province, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32695]
专题	中国科学院广州能源研究所
通讯作者	Zhu, Shunni
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Renyuan,Qin, Lei,Feng, Siran,et al. The joint effect of ammonium and pH on the growth of Chlorella vulgaris and ammonium removal in artificial liquid digestate[J]. BIORESOURCE TECHNOLOGY,2021,325:10.
APA	Jiang, Renyuan,Qin, Lei,Feng, Siran,Huang, Dalong,Wang, Zhongming,&Zhu, Shunni.(2021).The joint effect of ammonium and pH on the growth of Chlorella vulgaris and ammonium removal in artificial liquid digestate.BIORESOURCE TECHNOLOGY,325,10.
MLA	Jiang, Renyuan,et al."The joint effect of ammonium and pH on the growth of Chlorella vulgaris and ammonium removal in artificial liquid digestate".BIORESOURCE TECHNOLOGY 325(2021):10.