| Title: | Release of trace organic compounds during the decomposition of municipal solid waste components |
| Author(s): | Staley BF; Xu F; Cowie SJ; Barlaz MA; Hater GR; |
| Address: | "Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh 27695-7908, USA" |
| ISSN/ISBN: | 0013-936X (Print) 0013-936X (Linking) |
| Abstract: | "Landfill gas contains numerous speciated organic compounds (SOCs) including alkanes, aromatics, chlorinated aliphatic hydrocarbons, alcohols, ketones, terpenes, chlorofluoro compounds, and siloxanes. The source, rate and extent of release of these compounds are poorly understood. The objective of this study was to characterize the release of SOCs and the regulated parameter, non-methane organic compounds (NMOCs) during the decomposition of residential refuse and its major biodegradable components [paper (P), yard waste (YW), food waste (FW)]. Work was conducted under anaerobic conditions in 8-L reactors operated to maximize decomposition. Refuse and YW were also tested under aerobic conditions. NMOC release during anaerobic decomposition of refuse, P, YW, and FW was 0.151, 0.016, 0.038, and 0.221 mg-C dry g(-1), respectively, while release during aerobic decomposition of refuse and YW was 0.282 and 0.236 mg-C dry g(-1), respectively. The highest NMOC release was measured under abiotic conditions (3.01 mg-C dry g(-1)), suggesting the importance of gas stripping. NMOC release was faster than CH4 production in all treatments. Terpenes and ketones accounted for 32-96% of SOC release in each treatment, while volatile fatty acids were not a significant contributor. Release in aerobic systems points to the potential importance of composting plants as an emissions source" |
| Keywords: | "Air Pollutants/*analysis Biodegradation, Environmental Carbon Dioxide/analysis Fatty Acids, Volatile/analysis Food Methane/analysis Organic Chemicals/*analysis Paper Plant Leaves Plant Stems Poaceae *Refuse Disposal;" |
| Notes: | "MedlineStaley, Bryan F Xu, Fangxiang Cowie, Steven J Barlaz, Morton A Hater, Gary R eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2006/10/21 Environ Sci Technol. 2006 Oct 1; 40(19):5984-91. doi: 10.1021/es060786m" |
