Development of a relationship between olfactory response and major odorants from organic wastes

Reduction of Odor and Odorant Emissions from Slurry Stores by Means of Straw Covers

“…Controlling the emissions of H 2 S from stored slurry is especially important, as H 2 S has been identified as one of the main odorants responsible for high OCs measured above slurry storages (Hobbs et al, 2000; Blanes‐Vidal et al, 2009a). Some authors have reported a negative correlation between pH and emission of H 2 S (Arogo et al, 2000; Blunden and Aneja, 2008).…”

“…More than 168 volatile compounds have been identified in swine farms (O'Neill and Phillips, 1992; Schiffman et al, 2001), of which some are responsible for unpleasant odors. Previous literature has identified three main groups of compounds that are responsible for swine odors: sulfurous compounds (e.g., hydrogen sulfide, dimethyl sulfide, dimethyl disulfide, dimethyl trisulfide); phenols and indoles (e.g., p ‐cresol, indole, skatole); and, volatile fatty acids (VFA, e.g., acetic acid, propanoic acid) (Hobbs et al, 2000; Zahn et al, 2001; Wright et al, 2005; Blanes‐Vidal et al, 2009a). The odor components p ‐cresol, skatole, 4‐ethylphenol, and acetic acid have been identified as the most important odorants regarding odor intensity (Zahn et al, 2001; Wright et al, 2005), while phenols, indoles, and sulfur‐containing compounds have been identified as the most abundant odorants (Hobbs et al, 2000; Blanes‐Vidal et al, 2009a).…”

“…Livestock production is recognized as a major source of ammonia (NH 3 ) emitted to the atmosphere (ECETOC, 1994; Hutchings et al, 2001). Ammonia is also an odorous gas, although its contribution to the overall swine odor has been proven to be low (Hobbs et al, 1999, 2000; Le et al, 2005; Blanes‐Vidal et al, 2009b). Ammonia emission is mainly of concern because deposition of ammonia or particulates containing ammonium (NH 4 + ) to soil, water, or vegetation may cause acidification and eutrophication of natural ecosystems (Roeloffs and Houdijk, 1991; Portejoie et al, 2002).…”

Diurnal and seasonal variations of odor and gas emissions from a naturally ventilated free-stall dairy barn on the Canadian prairies

“…In another study, Blanes-Vidal et al (2009) observed OC was most strongly related to the sulfur-containing compounds, including H 2 S, from agitated swine slurry. Fewer studies considered multiple factors for predicting livestock odor, such as various odorants, volatile organic compounds (Hobbs et al, 2000;Akdeniz et al, 2012b), or climatic parameters (Wang, 2007).…”

Application of advanced oxidation processes for treatment of air from livestock and industrial facilities

“…OAVs of the single compounds can be assumed to be additive [29], although this assumption is difficult to verify. Another approach to determine the key odorous compounds is to correlate odour measured by sensory evaluation to odorous compounds measured by analytical methods by multiple regression statistical methods [4,30].…”