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LIFAC ash--strategies for management.

E J Anthony1, E E Berry, J Blondin

  • 1CANMET Energy Technology Centre-Ottawa, Natural Resources Canada, 1 Haanel Drive, Ottawa, Ont., Canada K1A 1M1. banthony@nrcan.gc.ca

Waste Management (New York, N.Y.)
|April 13, 2005
PubMed
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Limestone Injection into Flue gas Activated Carbon (LIFAC) technology produces ash with potential for concrete utilization and underground disposal. Ash management strategies were evaluated for disposal characteristics and concrete applications.

Area of Science:

  • Environmental Science
  • Materials Science
  • Chemical Engineering

Background:

  • Limestone Injection into Flue gas Activated Carbon (LIFAC) is an emerging flue gas desulphurization technology.
  • Coal combustion, particularly for electricity generation, produces ash requiring effective management.
  • Reducing sulfur emissions is critical for environmental protection in power plants.

Purpose of the Study:

  • To evaluate ash management strategies for lignite coal combustion using LIFAC technology.
  • To assess the disposal characteristics of LIFAC ash.
  • To investigate the potential utilization of LIFAC ash in concrete and as underground disposal material.

Main Methods:

  • Examined ashes produced by LIFAC technology from low-sulphur lignite coal.

Related Experiment Videos

  • Assessed ash properties after treatment using the CERCHAR hydration process.
  • Evaluated disposal characteristics and concrete utilization potential.
  • Assessed underground disposal using the Ash Water Disposal System (AWDS) process.

    • Main Results:

    • LIFAC ash exhibits potential for utilization in concrete applications.
    • Treated LIFAC ash demonstrates suitability for underground disposal via the AWDS process.
    • The study provides data on the disposal and utilization characteristics of LIFAC ash.

    Conclusions:

    • LIFAC ash can be managed through various strategies, including concrete utilization and underground disposal.
    • The CERCHAR hydration process and AWDS process are viable methods for managing LIFAC ash.
    • This research contributes to sustainable ash management in coal-fired power plants utilizing LIFAC technology.