Study on immediate and long-term growth inhibition of Microcystis aeruginosa by non-thermal plasma

doi:10.1016/j.cej.2021.132397

	Study on immediate and long-term growth inhibition of Microcystis aeruginosa by non-thermal plasma
	Xu, Zimu 1,2,3,4; Zhu, Bin 1; Xue, Xiaojuan 1; Hu, Shuheng 1; Cheng, Cheng 2
刊名	CHEMICAL ENGINEERING JOURNAL
	2022-02-01
卷号	429
关键词	Dielectric barrier discharge (DBD) plasma M. aeruginosa Reactive oxygen species Bacteria inactivation Short-period treatment
ISSN号	1385-8947
DOI	10.1016/j.cej.2021.132397
通讯作者	Hu, Shuheng(ashuheng.hu@163.com) ; Cheng, Cheng(bchengcheng@ipp.ac.cn)
英文摘要	There are still few studies on long-term growth inhibition of cyanobacteria though direct algae inactivation by discharge plasma has been widely invetigated. In the work, a home-made DBD system was applied to investigate the immediate and long-term inactivation effect of Microcystis aeruginosa (M. aeruginosa). Owing to discharge plasma in gas-liquid interface or liquid phase, RONS including H2O2, O-3 and NO3- and OH radical are produced. The bactericidal effects are time-dependent and a 3.36log reduction (above 99.99%) is achieved after 10-min exposure followed by the loss of membrane integrity resulting in damaged metabolic capacity and partial RS transportation into cells. Plasma discharge also leads to increased intracellular ROS and NO aggravating inactivation efficacy in the interior structure. The concentration changes of MCs indicates a well degradation effect on MCs by DBD plasma. Moreover, growth arrest (10 day for 0.5-min and 15 day for 1-min treated samples) indicates continuous inactivation of short-period DBD. The decreased contents of photosynthetic pigments (phycobilins and Chl-a) and inhibited nutrient absorption efficiency could contribute to residual inactivation effect. The inhibited synthesis of MCs are induced by short-period plasma treatment. The comprehensive regulations of genes associated with physiological processes are potentially responsible for long-term inactivation of M. aeruginosa. This work therefore proposes a type of feasible advanced oxidation process (AOPs) to utilization of DBD plasma that achieves effective short-term and long-term inactivation efficacy of M. aeruginosa.
资助项目	National Natural Science Foundation of China[51807046] ; National Natural Science Foundation of China[51777206] ; National Natural Science Foundation of China[51877208] ; Natural Science Foundation of Anhui Province[1908085MA29] ; Natural Science Foundation of Anhui Province[1808085MA13] ; International Science and Technology Cooperation Programme[2017YFE0115200]
WOS关键词	HYDROGEN-PEROXIDE ; DISCHARGE PLASMA ; WATER-TREATMENT ; INACTIVATION MECHANISM ; ACUTODESMUS-ACUMINATUS ; ACTIVATED WATER ; CELL INTEGRITY ; REMOVAL ; CYANOBACTERIA ; OXIDATION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000729769300008
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; International Science and Technology Cooperation Programme
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126906]
专题	中国科学院合肥物质科学研究院
通讯作者	Hu, Shuheng; Cheng, Cheng
作者单位	1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Ctr Med Phys & Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zimu,Zhu, Bin,Xue, Xiaojuan,et al. Study on immediate and long-term growth inhibition of Microcystis aeruginosa by non-thermal plasma[J]. CHEMICAL ENGINEERING JOURNAL,2022,429.
APA	Xu, Zimu,Zhu, Bin,Xue, Xiaojuan,Hu, Shuheng,&Cheng, Cheng.(2022).Study on immediate and long-term growth inhibition of Microcystis aeruginosa by non-thermal plasma.CHEMICAL ENGINEERING JOURNAL,429.
MLA	Xu, Zimu,et al."Study on immediate and long-term growth inhibition of Microcystis aeruginosa by non-thermal plasma".CHEMICAL ENGINEERING JOURNAL 429(2022).