Coupled mechanism of enhanced and inhibitory effects of nanoscale zero-valent iron on methane production and antibiotic resistance genes in anaerobic digestion of swine manure

	Coupled mechanism of enhanced and inhibitory effects of nanoscale zero-valent iron on methane production and antibiotic resistance genes in anaerobic digestion of swine manure
	Lu, Tiedong ; Zhang, Junya; Su, Tianming ; Liang, Xuelian ; Wei, Yuansong; He, Tieguang
	2022-09-01
Source Publication	BIORESOURCE TECHNOLOGY
ISSN	0960-8524
Volume	360 Issue:0 Pages:127635
Abstract	In this study, the turning point for nanoscale zero-valent iron's (NZVI) promotion and inhibition effects of methane production coupled with the reduction of antibiotic resistance genes (ARGs) was investigated. Adding 150 mmol/L NZVI increased methane production by maximum of 23.8 %, which was due to the chemical reaction producing H-2 and enhancement of direct interspecies electron transfer (DIET) by NZVI. NZVI350 dramatically repressed methane generation by 48.0 %, which might be associated with the large quantity of reactive oxygen species (ROS) and excessive H-2 inhibiting the functioning of microorganisms. The fate of ARGs was significantly related to daily methane production, indicating that the more methane production finally generated, the less the abundance of ARGs at last left. The reduction of ARGs was enhanced by maximum of 61.0 %, which was attributed to the inhibition of vertical gene transfer (VGT) and horizontal gene transfer (HGT) caused by steric hindrance associated with NZVI corrosion.
Department	大气环境与污染控制实验室 ; 大气环境与污染控制实验室
Keyword	MICROBIAL COMMUNITY PIG MANURE SP NOV. SLUDGE WASTE SYNTROPHOMONAS CELLULOSE BACTERIA METALS ROLES
Document Type	期刊论文
Identifier	https://ir.rcees.ac.cn/handle/311016/47394
Collection	大气环境与污染控制实验室
Corresponding Author	He, Tieguang
Affiliation	1.Guangxi Acad Agr Sci, Agr Resources & Environm Res Inst, Nanning 530007, Guangxi, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100085, Peoples R China 3.UFZ Helmholtz Ctr Environm Res, Dept ofIsotope Biogeochem, D-04318 Leipzig, Germany 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Guangxi Acad Agr Sci, Res Inst Agroprod Qual Safety & Testing Technol, Nanning 530007, Guangxi,
Recommended Citation GB/T 7714	Lu, Tiedong,Zhang, Junya,Su, Tianming,et al. Coupled mechanism of enhanced and inhibitory effects of nanoscale zero-valent iron on methane production and antibiotic resistance genes in anaerobic digestion of swine manure[J]. BIORESOURCE TECHNOLOGY,2022,360(0):127635.
APA	Lu, Tiedong,Zhang, Junya,Su, Tianming,Liang, Xuelian,Wei, Yuansong,&He, Tieguang.(2022).Coupled mechanism of enhanced and inhibitory effects of nanoscale zero-valent iron on methane production and antibiotic resistance genes in anaerobic digestion of swine manure.BIORESOURCE TECHNOLOGY,360(0),127635.
MLA	Lu, Tiedong,et al."Coupled mechanism of enhanced and inhibitory effects of nanoscale zero-valent iron on methane production and antibiotic resistance genes in anaerobic digestion of swine manure".BIORESOURCE TECHNOLOGY 360.0(2022):127635.

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