Abstract
Based on the aerothermodynamic principles, a kind of breathing bio-cover system was designed to enhance oxygen (O2) supply efficiency and methane (CH4) oxidation capacity. The research showed that O2 concentration (v/v) considerably increased throughout whole profiles of the microcosm (1m) equipped with passive air diffusion system (MPADS). When the simulated landfill gas SLFG flow was 771 and 1028 gm−3 d−1, the O2 concentration in MPADS increased gradually and tended to be stable at the atmospheric level after 10 days. The CH4 oxidation rate was 100% when the SLFG flow rate was no more than 1285 gm−3 d−1, which also was confirmed by the mass balance calculations. The breathing bio-cover system with in situ self-oxygen supply can address the problem of O2 insufficient in conventional landfill bio-cover. The proposed system presents high potential for improving CH4 emission reduction in landfills.
| Original language | English |
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| Title of host publication | Sardinia 2011 Proceedings : Thirteenth International Waste management and Landfill Symposium |
| Number of pages | 9 |
| Publisher | CISA, Environmental Sanitary Engineering Centre |
| Publication date | 2011 |
| Publication status | Published - 2011 |
| Event | 13th International Waste Management and Landfill Symposium - S. Margherita di Pula, Cagliari, Italy Duration: 3 Oct 2011 → 7 Oct 2011 Conference number: 13 |
Conference
| Conference | 13th International Waste Management and Landfill Symposium |
|---|---|
| Number | 13 |
| Country/Territory | Italy |
| City | S. Margherita di Pula, Cagliari |
| Period | 03/10/2011 → 07/10/2011 |