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Effects of magnetite on anaerobic digestion of swine manure: Attention to methane production and fate of antibiotic resistance genes
Zhang, Junya; Lu, Tiedong; Wang, Ziyue; Wang, Yawei; Zhong, Hui; Shen, Peihong; Wei, Yuansong
2019-11-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume291Pages:-
AbstractEffects of magnetite on methane production and fate of antibiotic resistance genes (ARGs) during anaerobic digestion (AD) of swine manure were investigated. Results showed that methane production was increased by maximum 16.1%, and magnetite could enhance the acetoclastic methanogenesis not hydrogenotrophic methanogenesis reflected by the functional gene quantification and microbial community analysis. The propionate degradation rate was improved, and it was syntrophic oxidized into H+/e(-)/CO2 for direct interspecies electron transfer (DIET) and acetate, where DIET was further enhanced by magnetite and the acetate was transformed into methane through syntrophic acetate oxidation (SAO) pathway. Magnetite mainly influenced the ARGs at the interim period of AD, where ARGs especially ermF were significantly enriched. Magnetite did not influence the total ARGs abundance at the end, although the tetM was enriched and mefA was reduced finally. Statistical analysis indicated that magnetite influenced the ARGs fate mainly through the changes of microbial community.
Department水污染控制实验室
KeywordMagnetite Anaerobic digestion Methane production Swine manure Antibiotic resistance genes
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43240
Collection水污染控制实验室
Affiliation1.Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Dept Water Pollut Control Technol, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Junya,Lu, Tiedong,Wang, Ziyue,et al. Effects of magnetite on anaerobic digestion of swine manure: Attention to methane production and fate of antibiotic resistance genes[J]. BIORESOURCE TECHNOLOGY,2019,291:-.
APA Zhang, Junya.,Lu, Tiedong.,Wang, Ziyue.,Wang, Yawei.,Zhong, Hui.,...&Wei, Yuansong.(2019).Effects of magnetite on anaerobic digestion of swine manure: Attention to methane production and fate of antibiotic resistance genes.BIORESOURCE TECHNOLOGY,291,-.
MLA Zhang, Junya,et al."Effects of magnetite on anaerobic digestion of swine manure: Attention to methane production and fate of antibiotic resistance genes".BIORESOURCE TECHNOLOGY 291(2019):-.
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