Temporal variation of decomposition gases from baled municipal solid wastes

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• 作者：Ismail Ozbay ; Ertan Durmusoglu ; ^{ertan@kocaeli.edu.tr}
• 关键词：Municipal solid waste ; Baling technology ; Landfill gases ; Correlation ; Regression
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：May, 2012
• 卷：112
• 期：Complete
• 页码：105-110
• 文件大小：785 K

摘要

In this study, after nine cylindrical bales containing a mix of different waste materials were constructed, they were stored in the open air and temporal variations of CO₂, CH₄, O₂, and N₂ were monitored over 10 months. In each bale, different waste fractions were considered in order to represent different moisture contents. The results showed that CO₂ increased within very few days to approximately 80%and stabilized later in the range of between 10%and 35%in a month. The O₂ levels dropped from approximately 15%to significantly less than 1%. There was no significant anaerobic decomposition since CH₄ did not exceed 5%during the whole test period. N₂ exhibited an opposite pattern with CO₂. In addition, relationships between waste species in the bales and gas formations were determined by a bivariate correlation analysis. An empirical prediction model for the maximum CO₂ production was also developed.