Nitrogen transformation and dynamic changes in related functional genes during functional-membrane covered aerobic composting

doi:10.1016/j.biortech.2021.125087

	Nitrogen transformation and dynamic changes in related functional genes during functional-membrane covered aerobic composting
	Xiong, Jinpeng 1; Ma, Shuangshuang 1,2; He, Xueqin 1; Han, Lujia 1; Huang, Guangqun 1
刊名	BIORESOURCE TECHNOLOGY
	2021-07-01
卷号	332 页码:9
关键词	Functional membrane Aerobic composting Nitrogen forms Functional genes
ISSN号	0960-8524
DOI	10.1016/j.biortech.2021.125087
通讯作者	Huang, Guangqun(huanggq@cau.edu.cn)
英文摘要	The effects of functional membrane covering (FMC) on nitrogen transformation and related functional genes during aerobic composting were investigated by performing a comparable experiment. The FMC increased the pile temperature, promoted compost maturity, and decreased nitrogen loss. The FMC reduced NH3 and N2O emissions by 7.34% and 26.27%, respectively. The water film and the micro-positive pressure environment under the membrane effectively prevented NH3 escaping. The FMC up-regulated the amoA gene copy number (promoting NH3/NH4+ oxidation). The reduction of N2O emission by the FMC was mainly related to denitrifying genes (nirK, nirS, and nosZ). The FMC down-regulated the nirK and nirS gene copy numbers, but up-regulated the nosZ gene copy number. Pearson correlation analysis indicated that the functional membrane characteristics and differences between the composting pile environments caused by the FMC significantly affected the nitrogen forms and the related functional genes. The FMC strongly decreased nitrogen emissions and therefore conserved nitrogen.
资助项目	National Key Research and Development Program of China[2018YFD08001-02] ; National Natural Science Foundation of China[31771684]
WOS关键词	SEMI-PERMEABLE MEMBRANE ; WASTE-WATER TREATMENT ; AMMONIA OXIDATION ; SEWAGE-SLUDGE ; N2O EMISSION ; PIG MANURE ; MECHANISMS ; BIOCHAR ; METHANE ; SYSTEM
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:000647793600008
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162715]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Guangqun
作者单位	1.China Agr Univ, Coll Engn, Engn Lab AgroBiomass Recycling & Valorizing, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Jinpeng,Ma, Shuangshuang,He, Xueqin,et al. Nitrogen transformation and dynamic changes in related functional genes during functional-membrane covered aerobic composting[J]. BIORESOURCE TECHNOLOGY,2021,332:9.
APA	Xiong, Jinpeng,Ma, Shuangshuang,He, Xueqin,Han, Lujia,&Huang, Guangqun.(2021).Nitrogen transformation and dynamic changes in related functional genes during functional-membrane covered aerobic composting.BIORESOURCE TECHNOLOGY,332,9.
MLA	Xiong, Jinpeng,et al."Nitrogen transformation and dynamic changes in related functional genes during functional-membrane covered aerobic composting".BIORESOURCE TECHNOLOGY 332(2021):9.