Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6337960 | Atmospheric Environment | 2015 | 9 Pages |
Abstract
Municipal solid waste landfills are one of the major sources of odor complaints. The determination of volatile compounds (VCs) emissions and their rates is a necessary prerequisite to calculate and study VCs dispersion and control. In this study a wind tunnel system has been introduced to investigate the VCs emission rates from the working face of a large anaerobic landfill in China. The VCs in gas samples were characterized by gas-chromatograph-mass-spectrometer. The emission rates of VCs increased linearly with sweeping velocity (0.1 m·sâ1 to 0.5 m·sâ1), and 0.28 m·sâ1 was selected as the recommended practical operation sweeping velocity. The VCs emission rates on the working face at the landfill site were investigated during the course of a day. 31 chemical species divided into six chemical groups were quantified with the following emission rates: oxygenated compounds: 205.73-750.00 μg·mâ2·sâ1, hydrocarbons: 61.82-220.37 μg·mâ2·sâ1, aromatics: 15.55-40.11 μg·mâ2·sâ1, halogenated compounds: 11.71-31.57 μg·mâ2·sâ1, terpenes: 2.71-18.70 μg·mâ2·sâ1, and sulfur compounds: 1.29-10.84 μg·mâ2·sâ1. The highest average emission rates of VCs were found from midnight to dawn (1:00-7:00). These results provide key input parameters to users of VCs dispersion models to calculate buffer distances.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Yanjun Liu, Wenjing Lu, Dong Li, Hanwen Guo, Luis Caicedo, Chi Wang, Sai Xu, Hongtao Wang,