Ground0based Optical Remote Sensing - FRTR · Fugitive Emission Measurement Solution Optical Remote...
Transcript of Ground0based Optical Remote Sensing - FRTR · Fugitive Emission Measurement Solution Optical Remote...
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Susan A. Thorneloe Air Pollution Prevention and Control Division
National Risk Management Research Laboratory Office of Research and Development
U.S. Environmental Protection Agency
Federal Remediation Technologies Roundtable
Arlington, VA
December 7, 2005
Application of Ground-Based Optical Remote Sensing to Characterize
Area Source Emissions
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The Context• Throughout the U.S., brownfield and superfund sites are under
investigation for remediation and development. Major issues have existed on how to identify potential hot spots and quantify emissions. This information is needed in evaluating risk management for determining control technology requirements and land use options.
Increasing trend in the U.S. towards recreational use and development of landfills. Land use options including building schools, gyms, soccer fields, and parks on landfills.Due to urban sprawl, it is not uncommon to have neighborhoods adjacent to landfills.
• Changes in RCRA regulations have resulted in landfill design andoperational changes. Trends towards wet landfill operation withleachate recirculation and addition of other liquids and sewage sludge. This results in faster waste decomposition and gas production.
• Through funding by 21M2, EPA/ORD has provided leadership in the development and application of technology for characterizing large area sources being investigated for future land use options.
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Recreational Use & Nearby Structures at Superfund Landfill
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On-Site Structures…..
This is a gym with an “Absolutely No Smoking” sign
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Gas Migration under Highway…
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Recently Developed Neighborhood Adjacent to Colorado Landfill
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Colorado Brownfield Site
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Fugitive Emission Measurement Solution
Optical Remote Sensing
Measures Path-IntegratedGas Concentration
Radial Plume Mapping
Determines Spatially-Resolved Emission Profiles
Open-Path Optical Techniques:
Fourier Transform InfraRed (FTIR)
Tunable Diode Laser (TDL)
Ultraviolet Spectroscopy (UV-DOAS)
Multi-path Calculation Algorithms:
Vertical RPM for Emission Flux
Horizontal RPM for Leak Detection
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ORS Instrumentation
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Path-Integrated Optical Remote Sensing
Nonlocalized Emission Source
ORS Source Retroreflector
Generates a Path Average Concentration
Ideal for non-homogeneous, large area sources
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Horizontal Radial Plume Mapping Configurations
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HRPM at Region 1 Facility
Methane Concentration Contour Map
Area A
Area B
Area B ext
Area E
Area C
Area D
NorthFTIR Positions
Wind
Contour Lines: Elevated CH4 (ppm)
Flux Plane
Methane Concentration Contour Map
Area A
Area B
Area B ext
Area E
Area C
Area D
NorthFTIR Positions
Wind
Contour Lines: Elevated CH4 (ppm)
Methane Concentration Contour Map
Area A
Area B
Area B ext
Area E
Area C
Area D
NorthFTIR Positions
Wind
Contour Lines: Elevated CH4 (ppm)
Area A
Area B
Area B ext
Area E
Area C
Area D
North
Area A
Area B
Area B ext
Area E
Area C
Area DArea A
Area B
Area B ext
Area E
Area C
Area D
NorthFTIR PositionsFTIR Positions
Wind
Contour Lines: Elevated CH4 (ppm)
Flux Plane
Area Methane Conc. (ppm)
A 2.7
B 1.8
Bext 6.4
C 3.1
D 1.9
E 1.9
Methane Surface Scan
Area Methane Conc. (ppm)
A 2.7
B 1.8
Bext 6.4
C 3.1
D 1.9
E 1.9
Methane Surface Scan
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Surface Concentration Map of Gasoline Vapor from a Suspected Underground Source
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Automated RPM Software
• Commercially available (ARCADIS/IMACC)
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Plume Capture Study• In the near future, EPA and ARCADIS will
be conducting a plume capture study using the RPM method
• The study will use controlled gas releases to evaluate the effectiveness of the method in capturing plumes originating from sources located a great distance upwind of the configuration
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ORS Cost Estimates for Conducting Field Tests
• Pricing includes Preparation of Quality Assurance Project Plan5 days of data collection, Equipment lease, and Final report
• Pricing may vary depending on site location and project needs
• Costing for TDL studies (single compound), $15K - $25KOP-FTIR studies (multiple compounds) - $25K to $35K
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EPA Publications• Measurements of Fugitive Emissions at Region I
Landfill (EPA-600/R-04-001, Jan 2004)• Evaluation of Former Landfill Site in Fort Collins,
Colorado Using Ground-Based Optical Remote Sensing Technology (EPA-600/R-05/-42, April 2005)
• Evaluation of Former Landfill Site in Colorado Springs, Colorado Using Ground-Based Optical Remote Sensing Technology (EPA-600/R-05/-41, April 2005)
• Guidance for Evaluating Landfill Gas Emissions from Closed or Abandoned Facilities (EPA-600/R-05/123, October 2005)
• A Case Study Demonstrating U.S. EPA Guidance for Evaluating Landfill Gas Emissions from Closed or Abandoned Facilities – Somersworth Sanitary Landfill; Somersworth, New Hampshire (EPA-600/R-05/142, October 2005)
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Reports In Review
• Evaluation of Fugitive Emissions Using Ground-Based Optical Remote Sensing Technology
Summarizes data from sites conducted to date and provides comparison of commercially-available technology
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Conclusions• Through 21M2 funding, EPA has
developed and demonstrated technology that will lead to more reliable -
Estimates for emission inventories and air permitsData for use in risk assessmentsLand use policy decisions
• Next steps Conducting fetch study to answer remaining issues related to use on landfills and other large area sourcesCompleting reporting summarizing field testing to data and comparing commercially available technologies