Navigation Links
This idea doesn't stink: New tech cuts industrial odors, pollutants

A North Carolina State University researcher has devised a new technology that really does not stink. In fact, it could be the key to eliminating foul odors and air pollutants emitted by industrial chicken rendering facilities and ultimately large-scale swine feedlots.

Dr. Praveen Kolar, assistant professor of biological and agricultural engineering at NC State, has developed an inexpensive treatment process that significantly mitigates odors from poultry rendering operations. Rendering facilities take animal byproducts (e.g., skin, bones, feathers) and process them into useful products such as fertilizer. However, the rendering process produces extremely foul odors.

These emissions are not currently regulated by the government, but the smell can be extremely disruptive to a facility's community. The industry currently uses chemical "scrubbers" to remove odor-causing agents, but this technique is not very effective, Kolar says. Furthermore, some of the odor-causing compounds are aldehydes, which can combine with other atmospheric compounds to form ozone triggering asthma attacks and causing other adverse respiratory health effects.

Kolar, working with his co-author Dr. James Kastner at the University of Georgia, has designed an effective filtration system that takes advantage of catalytic oxidation to remove these odor-causing pollutants. Specifically, the researchers use ozone and specially-designed catalysts to break down the odor-causing compounds. This process takes place at room temperature, so there are no energy costs, and results in only two byproducts: carbon dioxide and pure water.

The researchers developed the catalysts by coating structures made of activated carbon with a nanoscale film made of cobalt or nickel oxides, Kolar says. "We used activated carbon because its porous structure gives it an extremely large surface area," Kolar explains, "meaning that there is more area that can be exposed to the odorous agents." The cobalt and nickel oxide nanofilms make excellent catalysts, Kolar explains, "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."

Kolar says his next goal is to apply this research to industrial hog farms. "This technology could be applied to swine operations to address odors and ammonia emissions," Kolar says. "My next step is to try to pursue this research on a large scale."


Contact: Matt Shipman
North Carolina State University

Related biology news :

1. No more big stink: scent lures mosquitoes, but humans cant smell it
2. Using water to understand human society, from the industrial revolution to global trade
3. New filtering technology has environmental, industrial applications
4. A dash of lime -- a new twist that may cut CO2 levels back to pre-industrial levels
5. Small-scale fishing in Mexico rivals industrial fisheries in accidental turtle deaths
6. The industrial space age
7. CU-Boulder study suggests air quality regulations miss key pollutants
8. Persistent man-made chemical pollutants found in deep-sea octopods and squids
9. Atmosphere threatened by pollutants entering ocean, prof says
10. Creation of a new material capable of eliminating pollutants by the hydrocarbon industry
11. Scientists ramp up ability of poplar plants to disarm toxic pollutants
Post Your Comments:
(Date:11/10/2015)... , Nov. 10, 2015 ... behavioral biometrics that helps to identify and verify ... Signature is considered as the secure and accurate ... identification of a particular individual because each individual,s ... accurate results especially when dynamic signature of an ...
(Date:11/4/2015)... November 4, 2015 --> ... report published by Transparency Market Research "Home Security Solutions Market ... Forecast 2015 - 2022", the global home security solutions market is ... by 2022. The market is estimated to expand at ... 2015 to 2022. Rising security needs among customers at ...
(Date:10/29/2015)... JOLLA, Calif. , Oct. 29, 2015  The ... a new report titled, "DNA Synthesis and Biosecurity: Lessons ... well the Department of Health and Human Services guidance ... issued in 2010. --> ... but it also has the potential to pose unique ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... International Society for ... of the premier annual events for pharmaceutical manufacturing: 2015 Annual Meeting. The conference ... ISPE hosted the largest number of attendees in more than a decade. ...
(Date:11/24/2015)... ... 2015 , ... This fall, global software solutions leader SAP and AdVenture Capital ... and pitch their BIG ideas to improve health and wellness in their schools. , ... win the title of SAP's Teen Innovator, an all-expenses paid trip to Super Bowl ...
(Date:11/24/2015)...  Tikcro Technologies Ltd. (OTCQB: TIKRF) today announced that its Annual General ... a.m. Israel time, at the law offices of ... 36 th Floor, Tel Aviv, Israel . ... Izhak Tamir to the Board of Directors; , election ... , approval of an amendment to certain terms of options granted to ...
(Date:11/24/2015)... ... ... InSphero AG, the leading supplier of easy-to-use solutions for production, culture, and ... as Chief Operating Officer. , Having joined InSphero in November 2013 as ... promoted to Head of InSphero Diagnostics in 2014. There she has built up ...
Breaking Biology Technology: