Assessment of whole-site methane emissions from anaerobic digestion plants: towards establishing emission factors for various plant configurations

This dataset supplements the publication "Assessment of whole-site methane emissions from anaerobic digestion plants: towards establishing emission factors for various plant configurations" by Wechselberger et al. (forthcoming). The dataset contains primary and secondary data underlying the statistical analysis and reported methane emission factors. Emission factors were calculated as described in section 2.3 of the paper. Available files (UTF-8 encoded): Data.csv (dataset) Glossary.csv (column/variable descriptions of dataset) The dataset includes plant characteristics and whole-site methane losses of 135 anaerobic digestion plants, covering normal and various other-than-normal operating conditions (155 rows). For statistical analysis, only periods during normal operation and plants with information on the analyzed emission factors and plant characteristics were considered (cf. supplementary information C of the paper). Consequently, the final dataset contained 109 anaerobic digestion plants for statistical analysis on the methane emission factor (% of methane produced) and 28 plants when analyzing the wastewater-specific emission factor (kg methane per population equivalent and year). All but one facility continuously processed feedstock without any post-rotting stages. Plant DE-MH_WP5_1 of the secondary data implemented garage digesters. Data from three plants were collected only after completion of statistical analyses. These data were used to compare methane losses during normal and other-than-normal operating conditions. The respective rows are marked accordingly in the dataset (column “data_collected_after_statistical_analyses”).本数据集为Wechselberger等人即将发表的论文《厌氧消化设施（anaerobic digestion plant）全场地甲烷排放评估：面向多种设施配置的排放因子构建》提供补充支撑。 本数据集包含支撑该论文统计分析与已报道甲烷排放因子（methane emission factors）计算的一手与二手数据。甲烷排放因子的计算方式遵循论文第2.3节所述方法。 可用文件（采用UTF-8编码）： Data.csv（数据集本体） Glossary.csv（数据集的列/变量说明文件） 本数据集涵盖135座厌氧消化设施的设施特征与全场地甲烷流失量，覆盖正常运行及多种异常运行工况，共计155条数据记录。针对统计分析，本研究仅选取正常运行时段、且具备目标排放因子与设施特征相关信息的设施（参见论文补充材料C）。最终，用于甲烷排放因子（以产甲烷百分比计）统计分析的数据集包含109座厌氧消化设施；而针对废水专项排放因子（以每人口当量（population equivalent）每年的甲烷千克数计）的统计分析，则纳入28座厌氧消化设施。除1座设施外，其余所有设施均持续处理原料且未设置任何后腐熟阶段。二手数据中的DE-MH_WP5_1设施采用了车库式消化池（garage digesters）。 有3座设施的数据仅在统计分析完成后才完成采集，这些数据用于对比正常与异常运行工况下的甲烷流失量。数据集的"data_collected_after_statistical_analyses"列已对相应数据行进行了标注。