title: Temporal variation of decomposition gases from baled municipal solid wastes.
abstract: 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 CO(2), CH(4), O(2), and N(2) were monitored over 10 months. In each bale, different waste fractions were considered in order to represent different moisture contents. The results showed that CO(2) increased within very few days to approximately 80% and stabilized later in the range of between 10% and 35% in a month. The O(2) levels dropped from approximately 15% to significantly less than 1%. There was no significant anaerobic decomposition since CH(4) did not exceed 5% during the whole test period. N(2) exhibited an opposite pattern with CO(2). 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 CO(2) production was also developed.
authors.affiliation: University of Kocaeli, Department of Environmental Engineering, Kocaeli, Turkey.
authors.forename: Ismail
authors.initials: I
authors.lastname: Ozbay
authors.forename: Ertan
authors.initials: E
authors.lastname: Durmusoglu
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis; D002947:Cities; D005740:Gases / Q000032:analysis*; D016014:Linear Models; D012037:Refuse Disposal / Q000379:methods*; D013997:Time Factors; D014421:Turkey
chemical_list: D005740:Gases; D002245:Carbon Dioxide