干旱区生态环境知识资源中心(Arid): Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection

Arid

DOI	10.1371/journal.pone.0246334
	Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection
	Jain, Pradeep; Wally, James; Townsend, Timothy G.; Krause, Max; Tolaymat, Thabet
通讯作者	Tolaymat, T (corresponding author), US EPA, Off Res & Dev, Cincinnati, OH 45268 USA.
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2021
卷号	16 期号:2
英文摘要	A critical examination of the US Environmental Protection Agency's (US EPA's) Greenhouse Gas Reporting Program (GHGRP) database provided an opportunity for the largest evaluation to date of landfilled waste decomposition kinetics with respect to different US climate regimes. In this paper, 5-8 years of annual methane collection data from 114 closed landfills located in 29 states were used to estimate site-specific waste decay rates (k) and methane collection potentials (L-c). These sites account for approximately 9% of all landfills required to report GHG emissions to the US EPA annually. The mean methane collection potential (L-c) for the sites located in regions with less than 635 mm (25 in) annual rainfall was significantly (p<0.002) lower than the mean methane collection potential of the sites located in regions with more than 635 mm (25 in) annual precipitation (49 and 73 m(3) methane Mg-1 waste, respectively). This finding suggests that a fraction of the in-place biodegradable waste may not be decomposing, potentially due to a lack of adequate moisture content of landfills located in arid regions. The results of this evaluation offer insight that challenges assumptions of the traditional landfill methane estimation approach, especially in arid climates, that all methane corresponding to the total methane generation potential of the buried solid waste will be produced. Decay rates showed a significant correlation with annual precipitation, with an average k of 0.043 year(-1) for arid regions (< 508 mm (20 in) year-1), 0.074 year(-1) for regions with 508-1,016 mm (20-40 in) annual precipitation, and 0.09 year(-1) in wet regions (> 1,016 mm (40 in) year(-1)). The data suggest that waste is decaying faster than the model default values, which in turn suggests that a larger fraction of methane is produced during a landfill's operating life (relative to post-closure).
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000624538400016
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351376
作者单位	[Jain, Pradeep; Wally, James] Innovat Waste Consulting Serv LLC, Gainesville, FL USA; [Townsend, Timothy G.] Univ Florida, Dept Environm Engn Sci, Gainesville, FL 32611 USA; [Krause, Max; Tolaymat, Thabet] US EPA, Off Res & Dev, Cincinnati, OH 45268 USA
推荐引用方式 GB/T 7714	Jain, Pradeep,Wally, James,Townsend, Timothy G.,et al. Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection[J],2021,16(2).
APA	Jain, Pradeep,Wally, James,Townsend, Timothy G.,Krause, Max,&Tolaymat, Thabet.(2021).Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection.PLOS ONE,16(2).
MLA	Jain, Pradeep,et al."Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection".PLOS ONE 16.2(2021).