August 31, 2009
New technology cuts some industrial odors
A North Carolina State University scientist says he's created a technology to eliminate foul odors and air pollutants emitted by chicken rendering facilities.
Assistant Professor Praveen Kolar said his inexpensive treatment significantly mitigates odors from poultry rendering operations. Such emissions are not currently regulated by the government, but the smell can be extremely disruptive to a facility's community, Kolar said.
We used activated carbon because its porous structure gives it an extremely large surface area, meaning that there is more area that can be exposed to the odorous agents, Kolar said. The cobalt and nickel oxide nanofilms make excellent catalysts, Kolar added,
because they increase the rate of the chemical reaction between the odor-causing compounds and the ozone, making the process more efficient. They are also metals that are both readily available and relatively inexpensive.
The research appears in the August issue of Transactions of the American Society of Agricultural and Biological Engineers.