University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtäle 2, 70569 Stuttgart, Germany.
University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, Bandtäle 2, 70569 Stuttgart, Germany.
Bioresour Technol. 2015 Feb;178:359-361. doi: 10.1016/j.biortech.2014.09.112. Epub 2014 Oct 13.
The aim of the work was to establish a method for emission control of biogas plants especially the observation of fugitive methane emissions. The used method is in a developmental stage but the topic is crucial to environmental and economic issues. A remote sensing measurement method was adopted to determine methane emission rates of a biogas plant in Rhineland-Palatinate, Germany. An inverse dispersion model was used to deduce emission rates. This technique required one concentration measurement with an open path tunable diode laser absorption spectrometer (TDLAS) downwind and upwind the source and basic wind information, like wind speed and direction. Different operating conditions of the biogas plant occurring on the measuring day (December 2013) could be represented roughly in the results. During undisturbed operational modes the methane emission rate averaged 2.8 g/s, which corresponds to 4% of the methane gas production rate of the biogas plant.
本工作旨在建立一种沼气厂排放控制方法，特别是对沼气逃逸排放的观测。所用方法尚处于发展阶段，但对于环境和经济问题至关重要。本研究采用一种遥感测量方法，对德国莱茵兰-普法尔茨州的一个沼气厂的甲烷排放率进行了测定。采用反演扩散模型来推断排放率。该技术需要在源的下风处和上风处使用开放路径可调谐二极管激光吸收光谱仪（TDLAS）进行一次浓度测量，并提供基本的风速和风向等风信息。在测量日（2013 年 12 月）出现的不同沼气厂运行条件可以在结果中大致得到体现。在无干扰的运行模式下，甲烷排放率平均为 2.8 g/s，相当于沼气厂甲烷产生率的 4%。
