Reinelt Torsten, Delre Antonio, Westerkamp Tanja, Holmgren Magnus A, Liebetrau Jan, Scheutz Charlotte
Biochemical Conversion Department, Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straβe 116, 04347 Leipzig, Germany.
Department of Environmental Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
Waste Manag. 2017 Oct;68:173-185. doi: 10.1016/j.wasman.2017.05.053. Epub 2017 Jun 16.
A sustainable anaerobic biowaste treatment has to mitigate methane emissions from the entire biogas production chain, but the exact quantification of these emissions remains a challenge. This study presents a comparative measurement campaign carried out with on-site and ground-based remote sensing measurement approaches conducted by six measuring teams at a Swedish biowaste treatment plant. The measured emissions showed high variations, amongst others caused by different periods of measurement performance in connection with varying operational states of the plant. The overall methane emissions measured by ground-based remote sensing varied from 5 to 25kgh (corresponding to a methane loss of 0.6-3.0% of upgraded methane produced), depending on operating conditions and the measurement method applied. Overall methane emissions measured by the on-site measuring approaches varied between 5 and 17kgh (corresponding to a methane loss of 0.6 and 2.1%) from team to team, depending on the number of measured emission points, operational state during the measurements and the measurement method applied. Taking the operational conditions into account, the deviation between different approaches and teams could be explained, in that the two largest methane-emitting sources, contributing about 90% of the entire site's emissions, were found to be the open digestate storage tank and a pressure release valve on the compressor station.
可持续的厌氧生物废物处理必须减少整个沼气生产链中的甲烷排放，但准确量化这些排放仍然是一项挑战。本研究展示了一项对比测量活动，由六个测量团队在瑞典一家生物废物处理厂采用现场和地面遥感测量方法进行。测量的排放显示出很大的差异，部分原因是与工厂不同运行状态相关的不同测量时间段。地面遥感测量的总体甲烷排放量在5至25千克/小时之间变化（相当于升级产生的甲烷损失0.6 - 3.0%），这取决于运行条件和所应用的测量方法。现场测量方法测量的总体甲烷排放量在不同团队之间为5至17千克/小时（相当于甲烷损失0.6%至2.1%），这取决于测量排放点的数量、测量期间的运行状态以及所应用的测量方法。考虑到运行条件，不同方法和团队之间的偏差可以得到解释，因为发现两个最大的甲烷排放源，即开放式沼渣储存罐和压缩机站的一个压力释放阀，贡献了整个场地约90%的排放。
