www.concreteproducts.com August 2015 • 37
FEATURE
THE SEFA GROUP
The newest STAR facility and load-out occupy 6.5 acres of Santee
Cooper Power's 408-acre Winyah Generating Station, the principal
power source for nearby Myrtle Beach, S.C. The reactor has direct
feed of dry ash from the adjacent generating station. Dewatering of
pond ash (top right), fed separately or concurrently with dry ash,
begins in sheltered storage and continues in pre-heating chambers
(right, middle) that draw high temperature air from the reactor,
which runs on raw feed carbon combustion. Ash particles meet air
and water streams at ring headers placed along the reactor vessel.
STAR technology can process bituminous and sub-bituminous coal
fy ashes, Class F and Class C, respectively, and run various blends to
meet concrete customers' specifc performance requirements.
PHOTOS: Concrete Products
The Staged Turbulent Air Reactor has its own stack with integral
continual emission monitoring system to ensure permit compli-
ance. The SEFA Group builds each STAR operation as a stand-alone
facility that can operate independently of the host utility.