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Mercury from Electric Utilities: Monitoring and Emission Reductions. Greg DeAngelo & Tiffany Miesel Florida DEP, Division of Air Resource Management July 30, 2009. Outline and Introduction. Update since our March workshop Interaction with cement industry Federal regulatory updates

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mercury from electric utilities monitoring and emission reductions

Mercury from Electric Utilities: Monitoring and Emission Reductions

Greg DeAngelo & Tiffany Miesel

Florida DEP, Division of Air Resource Management

July 30, 2009

outline and introduction
Outline and Introduction
  • Update since our March workshop
  • Interaction with cement industry
  • Federal regulatory updates
  • Inventory
  • Testing and sampling
  • Monitoring (Mark Calloway, Tekran Instruments)
update on department s activities
Update on Department's Activities
  • Feb 12—held informational workshop

http://www.dep.state.fl.us/air/permitting/construction/mercury_wkp.htm

  • May 5 & 6—tested OUC Stanton, Units 1 & 2
    • Stack testing; Method 30B, with speciated results
    • Concurrent material sampling; coal, combustion byproducts, scrubber sludge
    • Analyzed by Department's lab
  • June 22—met with FCG mercury task force
    • Status of the project, mercury (Hg) test data, Hg emission estimates, additional data needs
other department activities
Other Department Activities
  • Added data from 2007 TRI, May FCG letter
  • Provided inventory to DEP staff working on TMDL standard for Hg
    • Current (2008) emissions
    • Emissions with controls to be installed in 2009
  • Tracked federal rulemaking developments
    • MACT proposals and activity for utilities, cement
  • Examined non-utility coal use and utility non-coal generation
  • Followed Tampa Electric fly ash reinjection testing
interaction with cement industry
Interaction with Cement Industry
  • March—DEP met with FDOT and cement experts at the FDOT research center in Gainesville.
    • Summarized emissions from cement kilns in the U.S.
    • Outlined likely range of future EPA limits, control options
    • Discussed concept of filter dust shuttling to ultimately encase some Hg in cement/concrete
    • Agreed to support demonstration efforts by testing cement for compliance with FDOT physical/chemical specifications
  • DEP's expert consultant has found that substitution of small amounts of filter dust for clinker:
    • Reduces air emissions, and
    • Will not disqualify the product as a Type I/II or masonry cement.
  • National associations are moving toward dust shuttling.
  • DEP is looking for participants interested in testing.
  • Contact at DEP is Al Linero.
federal rulemaking cement mact
Federal Rulemaking (Cement MACT)
  • May 6, 2009—EPA proposed revisions
  • Tighter Hg standard, on a 30-day rolling average basis
  • Compliance through continuous Hg measurement
    • CEMS (PS–12A) or sorbent trap monitors (PS–12B)
    • Performance specifications for ongoing quality assurance
    • "[Could] apply to sources from categories other than…cement"
  • No restriction on types of utility boiler fly ash that cement kilns can use
  • June 9, 2009—EPA extended the comment period
    • Three public hearings in June
    • Comments due Sept 4, 2009
federal rulemaking utility mact
Federal Rulemaking (Utility MACT)
  • In response to having CAMR vacated, EPA will propose a MACT rule for utilities.
    • Negotiations with litigants to settle the rulemaking schedule continue.
    • EPA believes they are very close to settling that schedule.
    • EPA plans to move "as quickly as [their] understanding of the issues allows."
    • EPA may have a final rule as early as Summer 2011.
  • EPA is not reconsidering their previously proposed MACT.
    • EPA will now (re-)evaluate all HAP (metals, acid gases, organics)
    • 114 information collection request (ICR) letters will be necessary and are under development.
    • Will EPA require stack tests to get the baseline data they will need?
  • EPA is soliciting comments on the proposed ICR.
    • Review of the ICR was noticed in Federal Register on July 2, 2009.
    • Comments are due August 31.