The Iowa Department of Natural Resources (IDNR) has under review an application for a Prevention of Significant Deterioration (PSD) air quality construction permit submitted by the University of Northern Iowa located in Cedar Falls, Iowa.
This project requests the addition of dry sorbent injection to the coal-fired boilers 3 and 4 at the UNI Power Plant to control SO2 and acid gas emissions. This addition will not result in an increase in emissions. The new control system, subject to summer 2013 feasibility tests, is being added to meet the Boiler MACT rule due to take effect as of Jan. 31, 2016. The DNR is taking comment until June 28 on a draft air permit covering this project.
Boiler 3 is a pulverized coal facility permitted to burn coal and fuel oil. Boiler 4 is a fluidized-bed combustion unit permitted to burn coal and petroleum coke. The plant has four boilers and is a cogeneration facility that supplies both steam and about 7.5 MW of power to the campus.