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首页> 外文会议>Specialty Conference on Emission Inventory: Living in a Global Environment Vol.2 Dec 8-10, 1998, New Orleans, LA >Assessment of Odour Emissions from a Municipal Solid Waste Landfill Site: Experimental Design for the estimation of a Footprint Flux
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Assessment of Odour Emissions from a Municipal Solid Waste Landfill Site: Experimental Design for the estimation of a Footprint Flux

机译：评估城市生活垃圾填埋场的气味排放：估算足迹通量的实验设计

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摘要

This paper focuses on the development of an innovative method for estimating odour fluxes from a Municipal Solid Waste (MSW) landfill site. A micrometeorological model has been developed based on the estimation of footprints of scalar odour concentration measurements in the atmospheric surface layer. The model is based on an analytical solution of the Eulerian advection-diffusion equation for vertical diffusion; model parameters include the location of the odour sensor and standard surface layer scaling factors. Lindvall Hoods are commonly used for measuring odour fluxes from ground based fugitive sources. However these cannot replicate the real atmospheric conditions. Common micrometeorological techniques for determining fluxes, such as vertical gradient measurements or eddy correlation methods, yield a flux magnitude but give little information about the source location. On the other hand the flux footprint describes the expansion and contraction of the required fetch under varying stabilities. Preliminary results from the model seem to be in good agreement with those from Lindvall hood measurements. Typical results show an average odour flux of 25.91 ou/m~2.s from freshly tipped waste for an upwind fetch of 45.0 m and with the sensor at a height of 1.5 m from the ground. The hood results have a geometric mean of 29.35 ou/m~2.s based on the inlet air volume and a shade air temperature of 22.5℃.
机译：本文着重于开发一种创新方法来估算城市生活垃圾（MSW）垃圾填埋场的气味通量。基于大气表面层中标量气味浓度测量结果的足迹估算值，开发了微气象模型。该模型基于欧拉对流扩散方程的垂直解的解析解。模型参数包括气味传感器的位置和标准表面层比例因子。 Lindvall烟罩通常用于测量来自地面逃犯来源的气味通量。但是，这些不能复制真实的大气条件。用于确定通量的常见微气象技术（例如垂直梯度测量或涡流相关方法）可产生通量大小，但很少提供有关源位置的信息。另一方面，助焊剂足迹描述了在不同稳定性下所需取回的膨胀和收缩。该模型的初步结果似乎与Lindvall油烟机的测量结果非常吻合。典型结果表明，从新倾倒的废物中平均气味通量为25.91 ou / m〜2.s，逆风取水量为45.0 m，并且传感器离地面的高度为1.5 m。基于进气量和22.5℃的阴凉空气温度，罩的几何平均值为29.35 ou / m〜2.s。

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