250 likes | 369 Views
Sustainable Management of “Wastes”. Prof Thomas DiStefano Bucknell University February 2009. Sustainable Management of Municipal Solid Waste. LCRMS Landfill. methane + CO 2. Gas leakage. Anthropogenic Carbon. Cogeneration – Electricity and Steam. CO 2. Landfill gas. electricity.
E N D
Sustainable Management of “Wastes” Prof Thomas DiStefano Bucknell University February 2009
methane + CO2 Gas leakage Anthropogenic Carbon
Cogeneration – Electricity and Steam CO2 Landfill gas electricity Steam
LCRMS currents converts ¼ of its landfill gas to electricity and hot water (cogeneration)
Size-reduced MSW (Dano drum, Rapid City, South Dakota, U.S.A.)
MSW collection anaerobic digester IC-CHP heat and electricity digestate
fugitive emissions (0.1) (14.9) raw (84) biogas (15) materials fossil fuel (56) biogenic emissions recycle (42) (14) digestate(69) to U.S. power demand emissions gas anthropogenic GHG gas storage MSW collection (140) rotating sieve anaerobic digester IC-CHP landfill w/ gas recovery heat and electricity on-siteuse
The potential effect of anaerobic biodegradation of MSW throughout the U.S. is considerable 140 million tons MSW/yr 5.9 billion m3/yr methane 15 billion kWh/yr Carbon tax credits of $40 to $60/MT CO2e Electricity consumption of 6.2 million US citizens Save 130 million metric tons of eCO2
Carbon taxes would result in landfill tipping fees similar to the EU methane + CO2 carbon tax of $15 to $50 / MT CO2e 50 years : AD saves 6 billion MT CO2e and 4 trillion kWh