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首页> 外文会议>AWMA's (Air Waste Management Association) annual conference exhibition >Estimating Landfill Greenhouse Gas Emissions from Measured Ambient Methane Concentrations and Dispersion Modeling
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Estimating Landfill Greenhouse Gas Emissions from Measured Ambient Methane Concentrations and Dispersion Modeling

机译：根据测量的环境甲烷浓度和扩散模型估算垃圾填埋场温室气体排放量

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Since municipal solid waste (MSW) landfills emit significant amounts of methane, a potent greenhouse gas, there is considerable interest in quantifying surficial methane emissions from landfills. The authors propose a new and easier method by which to estimate methane emissions. The technique uses hundreds of ambient air VOC measurements taken within a landfill, as receptors, and solves the standard Gaussian dispersion equations by matrix methods, to determine the methane emission rates at hundreds of locations throughout a MSW landfill. The method was tested on a Central Florida MSW landfill using various scenarios with differing source and receptor locations.Once accurate methane emissions throughout a MSW landfill are determined, they can be used as surrogates for odor emissions to predict downwind odor concentrations via a more sophisticated dispersion model such as ISC, AERMOD or CALPUFF. Other beneficial uses from this research include: determination of existing gas collection system efficiencies, calculation of fugitive greenhouse gas emissions from MSW landfills, and improved landfill gas management. The material in this paper is of interest to scientists, policy makers, landfill managers, and those concerned with global climate change, greenhouse gas inventory, and environmental management practices.
机译：由于城市固体废物（MSW）垃圾填埋场会排放大量甲烷（一种有力的温室气体），因此人们对量化垃圾填埋场的表面甲烷排放量产生了极大的兴趣。作者提出了一种新的，更简单的方法来估算甲烷排放量。该技术使用在垃圾填埋场中进行的数百次环境空气VOC测量作为接收器，并通过矩阵方法求解标准的高斯弥散方程，以确定整个MSW垃圾填埋场中数百个位置的甲烷排放率。该方法在佛罗里达州中部城市生活垃圾填埋场中进行了测试，使用了各种场景，具有不同的来源和受体位置，一旦确定了整个城市生活垃圾填埋场中甲烷的准确排放量，它们就可以用作气味排放的替代物，通过更复杂的扩散来预测顺风气味浓度ISC，AERMOD或CALPUFF等模型。这项研究的其他有益用途包括：确定现有气体收集系统的效率，计算生活垃圾填埋场产生的短时温室气体排放量以及改善垃圾填埋场气体管理。本文中的材料对于科学家，政策制定者，垃圾填埋场管理人员以及与全球气候变化，温室气体清单和环境管理实践有关的人们都很感兴趣。

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