D6 : Umcaster Farming, Saturday, August 23, 1997
LONDON, Ohio A bypro
duct from coal-burning power
plants may soon replace clay as a
liner for livestock waste lagoons,
said Tarunjit S. Butalia, research
associate at Ohio State Universi
ty’s department of civil and en
vironmental engineering and
geodetic science.
Laboratory tests have shown
the coal byproduct called flue
gas desulfurization or FGD
resists the flow of water. Re
searchers finishing up the first
year of a three-year project are
optimistic that FGD could be used
in place of clay to line livestock
waste lagoons.
“There are spots in Ohio where
good clay is not abundant to use as
a liner, and it can be expensive to
buy and transport clay to these
areas,” Butalia said. “FGD could
be used instead.”
The expectation is that FGD
will be made available to farmers
for free at source plants.
Butalia and Ohio State civil
engineering professor William E.
Wolfe will discuss the use of FGD
Coal Byproducts Promising As
Lining In Livestock Waste Lagoons
as an impervious liner for swine well, the Environmental Pro
and other livestock waste lagoons tection Agency will approve FGD
at the Farm Science Review on as a lagoon liner soon,” Butalia
Thursday, Sept. 18, at 11:30 a.m. said. “FGD has already been
in the Bailey Building. approved by the Ohio EPA for use
A full-scale demonstration in constructing cattle feedlots and
lagoon being built at Ohio State’s hay storage pads.
Ohio Agricultural Research and Large scrubbers at some Ohio
Development Center’s Western plants can produce about 22 tons
Branch in South Charleston will of the byproduct per hour. Annu
test the effectiveness of a field- ally, 3to 4 million tons of the
compacted FGD liner, Butalia material are created statewide,
said. Water will be added to the The byproduct has generally
lagoon during the first year, and been landfilled. But increasing
the permeability of the FGS liner landfill costs and limited landfill
will be measured. space prompted utility companies
Livestock waste will be added and Ohio State researchers to
and monitored in the second year. begin searching for ways to cffcc-
Then, the lagoon will serve as a tively reuse the material, Butalia
storage facility for livestock waste said. FGD also is being considered
at the branch, Butalia said. as a liner for recreational ponds,
“The lagoon will be completed constructed wetlands, and land
by the start of the Review, so if fills
- is enough interest from peo- FGD research at Ohio State is
pie during our presentation, we being done in collaboration with
will arrange a tour," he said. HoCking Technical College in
The OARDC Western Branch Nelsonvillc. The project is spoo
ls only about 20 miles from the sored by the Ohio Coal Develop-
Farm Science Review. ment Office, American Electric
“Hopefully, if everything goes Power, Dravo Lime Company,
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