Providing Critical Solutions to Mercury Issues Worldwide
The EERC is a worldwide leader in mercury measurement and control and has tremendous
expertise and equipment to address virtually any mercury-related question.
The EERC has mercury-related contracts ongoing across the
United States and Canada and is setting global standards for mercury analysis and
measurement, focusing on the development, testing, demonstration, and commercialization
of mercury control technologies for the coal-fired power industry.
As a world leader, the EERC strives to partner with industry and technology developers
to solve global mercury problems.
Assessment and Control
The EERC is recognized worldwide for its expertise in understanding mercury in fuels,
air, water, and soil. The U.S. Environmental Protection Agency (EPA) mandated that
mercury emitted into the atmosphere from the stacks of coal-fired boilers must be
regulated. The EERC is developing, testing, and commercializing technologies to
control mercury emissions from a wide variety of fuels in an efficient and cost-effective
The EERC has conducted testing on numerous mercury control options in bench-, pilot-,
and full-scale combustion and emission control systems.
- Bench-scale testing
- Pilot-scale testing
- Slipstream testing
- Full-scale testing
Over the past 15 years, the EERC has developed a detailed understanding of the impact
that fuel properties, boiler type, and emission control technologies have on mercury
speciation and control. This understanding allows for matching the best mercury
control technology option with fuel type, power system design, and operating conditions.
The EERC is a world leader in mercury measurement in combustion flue gases and by-products.
The ability to accurately and reliably measure mercury is fundamental to demonstrating
compliance with the regulations issued in the Clean Air Mercury Rule and assessing
commercialization potential of various mercury control technologies. In the mid-1990s,
the EERC validated the Ontario Hydro (OH) mercury speciation method and coauthored
ASTM International D6784-02, the OH method.
The EERC also played an active role in the development and application of continuous
mercury monitors (CMMs). The EERC has successfully used CMMs to continuously measure
mercury in bench-, pilot-, and stack emissions at many sites around North America.
These devices are extremely valuable and have been used to provide real-time data
on how well various control technologies work relative to mercury capture and reduction.
More on Mercury Field Sampling Capabilities
The Mobile Laboratories
The EERC is unique because it can sample and analyze mercury in the field while
maintaining exceptionally high quality control and quality assurance standards.
The EERC has seven sophisticated mobile labs that have been used for extensive mercury
sampling and technology performance verification. Sampling crews ranging from four
to 14 scientists and engineers travel to many locations annually, spending up to
several months at a time evaluating baseline mercury emission levels and the effectiveness
of control technologies.
The EERC can perform several EPA-sanctioned methods, including:
- EPA Methods 5 and 17 for particulate sampling.
- ASTM D6784-02 (the OH method).
- EPA Method 29 for multimetal measurements.
- EPA Method 30B.
Over the last 15 years, the EERC has been involved with hundreds of cutting-edge
mercury control and measurement projects around the world:
- The Center for Air Toxic Metals®
(CATM®) , one of the EERC's eleven centers of excellence,
is leading the world in developing effective strategies to understand, measure,
and control mercury and other air toxic metal emissions.
- The EERC is leading a series of full-scale programs with North
Dakota utilities to demonstrate new mercury control technologies. The EERC is testing
numerous lignite-fired power plants from Texas to North Dakota to Saskatchewan.
- EERC researchers have provided testimony before numerous U.S. Senate
committees on the technical challenges facing mercury control to assist in developing
- The EERC has conducted mercury sampling at more than 50 power plants
in North America.
- EERC researchers are doing extensive work on mercury control for
subbituminous coals with support from utilities, coal companies, and technology
- The EERC is conducting multiple evaluations on bituminous coal-burning
sites, including testing additive control technologies as well as evaluation of
the cobenefits from SO2 and NOx control
EERC Mercury Testing Equipment and Systems Control
- Bench- and pilot-scale test units
- Sorbent injection equipment
- Additive injection systems
- Sorbent regeneration hardware
- Slipstream air pollution control devices
- Seven sampling trailers for short- and long-duration testing in
- Cold-vapor atomic absorption spectrophotometer in sampling trailer
for on-site analysis of OH and sorbent trap samples
- On-site coal, fly ash, and scrubber sludge analysis for mercury
- Over 15 CMMs (five different types)
- Knowledge, equipment, and capability to measure and assess all
flue gas components
- A full suite of analytical capabilities in-house
Center for Air Toxic Metals®