Huntzinger Wins Award to Reduce the Cement Industry’s C02 Emissions
Deborah Huntzinger, Assistant Professor of Climate Sciences at Northern Arizona University, was recently
named a 2012 Bisgrove Scholar award winner by Science Foundation Arizona.
She will use the funds to research a waste byproduct of cement manufacturing to
reduce global carbon dioxide (CO2) emissions. About five percent of global CO2
emissions come from the cement industry.
Huntzinger has developed methods to sequester cement kiln dust, a
powdery byproduct that may end up in a landfill or, in some cases, be recycled.
Kilns produce about 0.2 tons of waste product per ton of clinker, the finished
product most of us call cement.
“These waste products are already in fine-grain form, so they don’t
need to be processed,” Huntzinger said. “All we really need to do is put them
in the presence of CO2 and water.”
As straightforward as that sounds, much work remains to be done.
Huntzinger’s lab work so far has been conducted under ideal conditions. The
Bisgrove funding will allow her to introduce real-world complications, with the
goal of designing a pilot-scale project within the next two years. One
important consideration is to figure out how to capture carbon emissions from
the manufacturing processes using as little added infrastructure and energy as
--Adapted from “Inside