Flexibility and Other Benefits. As noted, project results (to date) from smaller-scale demonstration projects are very encouraging and have demonstrated a tenfold increase in landfill gas generation, increased landfill settlement, improved leachate chemistry, and highly cost-effective abatement of greenhouse gases. Economic analysis of the project shows that implementing bioreactor landfilling operations can have significant cost savings and environmental benefits for the Yolo County Central Landfill.
Flexibility and Other Benefits. As noted, project results (to date) from smaller-scale demonstration projects are very encouraging and have demonstrated a tenfold increase in landfill gas generation, increased landfill settlement, improved leachate chemistry, and highly cost-effective abatement of greenhouse gases. Economic analysis of the project shows that implementing bioreactor landfilling operations can have significant cost savings and environmental benefits for the Yolo County Central Landfill. Table 6- Superior Environmental Performance Proposed Bioreactor Project (with XL) Conventional Landfill (Yolo without XL) Anaerobic bioreactor Aerobic bioreactor A Expedited methane generation and recovery to control fugitive emission such as "greenhouse" methane and VOC's. Fugitive gases due to emissions before gas collection system is in operation. Recovery of 55-80% of total gas generated because of slow gas generation over very long term (25-70 years). Less than 100% collection efficiency after installation of gas collection system. Higher gas recovery efficiency than conventional gas collection system. Capture begins early in filling phase. Efficient recovery from permeable layers ongoing through entire gas generation cycle of 5-10 years. High generation rate over short period (5 to 10 years) allows near-maximum recovery N/A- (little or no methane expected) B Life extension for 20 year landfill 0 years gained For a 20-year "conventional" design, ca. 5 years additional life obtained Over 7 years life extension expected. C Future Leachate Contamination Risks Medium to high (organics and metals) over long term Lower organics and lower metals for shorter term Lower organics and lower metals for shorter term.
Flexibility and Other Benefits. Federal [40 CFR 261.2(e)(1)(i)] and New York State [371.1(c)(6)(i)(a)] regulations affecting the definition of a solid waste indicate…
