Application of proton-transfer-reaction mass spectrometry to the assessment of odorant removal in a biological air cleaner for pig production.
There is an urgent need to develop odor reduction technologies for animal production facilities, and this requires a reliable measurement technique for estimating the removal of odorants. The purpose of the present experiment was to investigate the application of proton-transfer-reaction mass spectrometry (PTR-MS) for continuous measurements at a biofilter from SKOV A/S installed at a pig production facility. PTR-MS was able to handle the harsh conditions with high humidity and dust load in a biofilter and provide reliable data for the removal of odorants, including the highly odorous sulfur compounds. The biofilter removed 80-99% of carboxylic acids, aldehydes, ketones, phenols, and indoles and ca. 75% of hydrogen sulfide. However, only ~0-15% of methanethiol and dimethyl sulfide was removed. In conclusion, PTR-MS is a promising tool that can be used to improve the development of biological air cleaning and other odor reduction technologies toward significant odorants.
Department of Engineering, Faculty of Science and Technology, Aarhus University, Tjele, Denmark. michaelj.hansen@agrsci.dk
Michael J
MJ
Hansen
Dezhao
D
Liu
Lise Bonne
LB
Guldberg
Anders
A
Feilberg
D000389:Air Conditioning / Q000295:instrumentation / Q000379:methods*; D000393:Air Pollutants / Q000032:analysis*; D000822:Animal Husbandry; D000818:Animals; D013058:Mass Spectrometry / Q000379:methods*; D009812:Odorants / Q000032:analysis*; D013552:Swine / Q000254:growth & development
D000393:Air Pollutants