A new approach to estimation of methane emission rates from landfills.
A new approach to estimation of methane emission rates from landfills.
复制标题
估算垃圾填埋场甲烷排放率的新方法。
DOI：
10.1016/j.wasman.2013.08.027
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发表时间：
2016
期刊：
影响因子：
8.1
通讯作者：
T. Flassak
中科院分区：
文献类型：
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作者：
Han Zhu;M. Letzel;M. Reiser;M. Kranert;W. Baechlin;T. Flassak
甲烷排放监测对于扩散性区域源越来越重要，特别是对于垃圾填埋场，这占全球人为甲烷排放总量的很大一部分。根据法律规定，德国应每半年对填埋场的甲烷排放率进行一次检查;然而，尚未制定适当的方法并将其用于一般用途。在这项研究中，提出了一种新的方法，基于实验结果，它利用TDLAS（可调谐二极管激光吸收光谱）仪器- GasFinder2.0®系统和分散模型LASAT（拉格朗日模拟气溶胶传输）作为测量设备和计算模型，分别。2010年4月至2011年12月期间，在德国南部的一个试点规模的垃圾填埋场进行了一项研究项目。通过对该试点项目的广泛研究，确定了有效的测量设置策略。项目现场的上下游部分采用GasFinder 2. 0 ®系统测量甲烷浓度，同时采用超声波风速计测量风和湍流数据。将其结果作为扩散模型的输入数据，可以计算出甲烷源的平均排放速率。该方法不仅适用于垃圾填埋场，而且适用于不同扩散面源，与传统的FID（Flame Ionization Detector）方法相比，具有工作量小、成本低的特点。
Methane emission monitoring has become increasingly essential for diffusive area sources, especially for landfills, which contribute to a significant fraction of the total anthropogenic methane emission globally. Statutorily, methane emission rate from landfills in Germany shall be examined on a semiannual basis; however, an appropriate approach has yet to be developed and adopted for general use. In this study, a new method is proposed based on experimental results, which utilizes a TDLAS (Tunable Diode Laser Absorption Spectroscopy) instrument – GasFinder2.0® system and a dispersion model LASAT (Lagrangian Simulation of Aerosol Transport) as the measurement device and calculation model, respectively. Between April 2010 and December 2011, a research project was conducted at a pilot scale landfill in the south of Germany. Drawing on the extensive research into this pilot project, an effective strategy of measurement setup was determined. Methane concentration was measured with GasFinder2.0® system in the upstream and downstream sections of the project site, while wind and turbulence data were measured simultaneously by an ultrasonic anemometer. The average methane emission rate from the source can be calculated by using the results as input data in the dispersion model. With this method, site-specific measurement approaches can be designed for not only landfills, but also different diffusive area sources with less workload and lower cost compared to conventional FID (Flame Ionization Detector) method.