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Evaluation of landfill gas decay constant for municipal solid waste landfills operated as bioreactors.
| Content Provider | Scilit |
|---|---|
| Author | Tolaymat, Thabet M. Green, Roger B. Hater, Gary R. Barlaz, Morton A. Black, Paul Bronson, Doug Powell, Jon |
| Copyright Year | 2010 |
| Description | Prediction of the rate of gas production from bioreactor landfills is important for the optimization of energy recovery and for estimating greenhouse gas emissions. To improve the predictability of gas production, landfill gas (LFG) composition and flow rates were monitored for 4 yr from one conventional and two bioreactor landfill cells at the Outer Loop Landfill in Louisville, KY. The ultimate methane yield (L$ _{0}$) was estimated from the biochemical methane $(CH_{4}$) potential of freshly buried refuse and the decay rate constant (k) was estimated from measured $CH_{4}$ collection. The site-specific L$ _{0}$ was estimated to be 48.4 m^{3}$-CH_{4}$ wet $Mg^{−1}$. The estimated decay rate in the conventional cell (0.06 $yr^{−1}$) was comparable to the AP-42 default value of 0.04 $yr^{−1}$, whereas estimates for the two bioreactor cells were substantially higher (˜0.11 $yr^{−1}$). The data document the ability of the bioreactor operation to enhance landfill $CH_{4}$ generation, although the estimated decay rate is sensitive to the selected $L_{0}$. The more rapid decomposition in the bioreactor cells reduces the length of time over which gas will be produced and emphasizes the importance of having a LFG collection system operational once the waste receives added moisture. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.3155/1047-3289.60.1.91?needAccess=true |
| Ending Page | 97 |
| Page Count | 7 |
| Starting Page | 91 |
| ISSN | 10962247 |
| e-ISSN | 21622906 |
| DOI | 10.3155/1047-3289.60.1.91 |
| Journal | Journal of the Air & Waste Management Association |
| Issue Number | 1 |
| Volume Number | 60 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2010-01-24 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of the Air & Waste Management Association Biotechnology and Microbiology Greenhouse Gas Emissions Optimization Decay Methane Landfill Ch4 Bioreactor Operation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law |
