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Response and mechanisms of the performance and fate of antibiotic resistance genes to nano-magnetite during anaerobic digestion of swine manure
Zhang, Junya; Wang, Ziyue; Lu, Tiedong; Liu, Jibao; Wang, Yawei; Shen, Peihong; Wei, Yuansong
2019-03-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume366Pages:192-201
AbstractSwine manure is an important reservoir of environmental antibiotic resistance genes (ARGs), and anaerobic digestion (AD) is a commonly used method for swine manure treatment. In this study, the optimized dosage of nano-magnetite to enhance methane production was figured out, the changes of the fate of ARGs response to nano-magnetite were investigated, and the microbial mechanisms were deciphered through the microbial community analysis and key functional genes quantification. Results showed that nano-magnetite could improve the methane production by maximum 6.0%, the maximum daily methane production could be increased by 47.8%, and the AD time could be shortened by above 20.0% at the addition of 75 mmol. The improved performance could be associated with the enhancement of direct interspecies electron transfer (DIET) and the inhibition release due to the formation of Fe-S precipitation not the nutrition elements role of nano-magnetite, and nano-magnetite did not significantly influence the dynamics of microbial community. Nano-magnetite could enhance the methanogenesis instead of the acetogenesis reflected by the functional genes analysis, and the limited effects of nano-magnetite on the fate of ARGs could be associated with its limited influence on the microbial community which determined the fate of ARGs during AD of swine manure.
Department水污染控制实验室
KeywordAntibiotic resistance genes Swine manure Anaerobic digestion Nano-magnetite Microbial community
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43274
Collection水污染控制实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Dept Water Pollut Control Technol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Hebei Univ Technol, Sch Energy & Environm Engn, Tianjin 300401, Peoples R China
5.Guangxi Univ, Coll Life Sci & Technol, Nanning 530005, Guangxi, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Junya,Wang, Ziyue,Lu, Tiedong,et al. Response and mechanisms of the performance and fate of antibiotic resistance genes to nano-magnetite during anaerobic digestion of swine manure[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,366:192-201.
APA Zhang, Junya.,Wang, Ziyue.,Lu, Tiedong.,Liu, Jibao.,Wang, Yawei.,...&Wei, Yuansong.(2019).Response and mechanisms of the performance and fate of antibiotic resistance genes to nano-magnetite during anaerobic digestion of swine manure.JOURNAL OF HAZARDOUS MATERIALS,366,192-201.
MLA Zhang, Junya,et al."Response and mechanisms of the performance and fate of antibiotic resistance genes to nano-magnetite during anaerobic digestion of swine manure".JOURNAL OF HAZARDOUS MATERIALS 366(2019):192-201.
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