A new biochemical methane potential assay for landfilled waste using the organic fraction of municipal solid waste

被引：0
|
作者：
Pearse L.F. [1 ]
Hettiaratchi J.P.A. [1 ]
Da Costa D. [1 ]
机构：
[1] Center for Environmental Engineering Research and Education (CEERE), Department of Civil Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB
来源：
Bioresource Technology Reports | 2020年 / 12卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Biochemical methane potential; k; Landfill gas; Lo; Mathematical modeling; Municipal solid waste; Solid-phase;
D O I：
10.1016/j.biteb.2020.100579
中图分类号：
学科分类号：
摘要：
This study was undertaken as a first step towards developing a new solid-phase biochemical methane potential (BMP) assay, termed Landfill BMP, to be representative of the methane generation potential of landfilled waste. Statistically designed laboratory batch experiments were conducted using organic fraction of municipal solid waste to compare the methane generation potential (Lo) and the first-order rate coefficient (k) values from conventional slurry-phase BMP and new LBMP assays. Results showed statistically significant differences between Lo values, with the slurry-phase assay overestimating Lo by as much as 47 ± 12%. CH4 yields of the slurry and the solid-phase assays were as high as 183.6 mlCH4/gVSwaste and 118.1 mlCH4/gVSwaste, respectively. k values were overestimated by both slurry and solid-phase approaches, suggesting that laboratory experiments may not be the best approach to obtain k values. The highest coefficient of variation between duplicates in this study was 26%, indicating acceptable repeatability of results. © 2020 Elsevier Ltd
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