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Waste to Energy United States Perpectives

Waste-to-energy projects in the U.S. focus on converting waste into valuable resources. Common initiatives include burning hazardous waste in Boilers and Industrial Furnaces (BIFs) to recover energy and materials, and utilizing cement kilns, which significantly cut fuel costs while producing cement. Challenges arise from complex regulations under RCRA and CAA laws. Additionally, capturing methane from landfills is crucial, as it constitutes a major greenhouse gas emission source. The Landfill Methane Outreach Program (LMOP) promotes beneficial use of landfill gas, offering environmental and safety benefits.

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Waste to Energy United States Perpectives

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  1. Waste to EnergyUnited States Perpectives Aileen M. Hooks

  2. Overview • Waste to Energy projects convert waste into productive use • Common waste to US energy projects include: • Boilers and Industrial Furnaces • Landfill Methane Collection

  3. Boilers and Industrial Furnaces (BIFs) • BIFs burn hazardous waste for significant energy and material recovery • Waste treatment is a secondary benefit

  4. BIFs - Cement Kilns • Cement kilns are a common type of BIF (when burning hazardous waste) • Kilns produce cement by grinding and heating a mixture of raw materials to produce clinker

  5. BIFs - Cement Kilns • Cement manufacturing is very energy-intensive • 4.4 million Btu = 1 ton of cement • Using waste fuels greatly reduces and can negate fuel costs

  6. Regulatory Challenges • Using waste as fuel implicates regulation under both hazardous waste (RCRA) and air (CAA) laws • RCRA permitting and CAA comprehensive performance testing can be complex and expensive • A federal court recently vacated a long-standing exclusion of "comparable fuels" from RCRA regulation

  7. Landfill Methane • Methane is a potent greenhouse gas • Odor and safety concerns as well • Municipal solid waste landfills are a significant source of methane emissions in the United States • Landfill gas is approximately 50% methane

  8. Landfill Methane - Energy Use • Landfill gas can be captured and used to fuel: • Power plants • Manufacturing facilities • Vehicles • Homes

  9. Landfill Methane - Energy Use

  10. Landfill Methane - LMOP • Landfill Methane Outreach Program (LMOP) • U.S. EPA encourages recovery and beneficial use of landfill gas as an energy source • Voluntary assistance program to overcome barriers to project development • Primary LMOP benefits: • Reduces greenhouse gas emissions • Reduces demand for fossil fuels • Reduces landfill odors and increases safety

  11. Landfill Methane - LMOP Emission Reductions

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