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Fluid Properties
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
3,4-Xylenol Isoquinoline Quinoline Naphthalene 3-Methylisoquinoline 2-Methylquinoline 3-Methylquinoline 7-Methylquinoline 2,3-Dimethylquinoline 3,5-Xylenol Isoquinoline Quinoline Naphthalene 2-Methylquinoline 2,3-Dimethylquinoline 2-Ethylphenol Quinoline Naphthalene 1,2,4,5-Tetramethylbenzene 3-Ethylphenol Quinoline Naphthalene 1,2,4,5-Tetramethylbenzene 4-Ethylphenol Quinoline Naphthalene 2,4-Dimethylaniline Undecane Dodecane Tridecane Tetradecane 1-Octanol Decane Undecane Dodecane Isoquinoline 2-Methylnaphthalene Quinoline 3-Isopropylphenol 2-Isopropylphenol 2-Propylphenol 3-Propylphenol 4-Propylphenol 2-Butylphenol 2-tert-Butylphenol 3-tert-Butylphenol 4-Isobutylphenol 2-sec-Butylphenol 4-sec-Butylphenol 2-Methylnaphthalene 2-tert-Butyl-5-methylphenol 2-sec-Butyl-4-methylphenol 1,2,3-Trimethylbenzene Decane 1,2,4-Trimethylbenzene Decane 2-Ethyl-4-methylphenol Naphthalene 2-Ethyl-5-methylphenol
Improved water quality and reduction of odorous compounds in anaerobic lagoon columns receiving pre-treated pig wastewater
Published in Environmental Technology, 2018
Ariel A. Szogi, John H. Loughrin, Matias B. Vanotti
There are more than 160 different odor compounds identified in anaerobic pig lagoon liquid [22]. Although there is not a single odor compound that is a reliable indicator of offensive odor from pig manure, the five selected aromatic odor compounds (phenol, p-cresol, 4-ethylphenol, indole, and skatole) have been used in other studies as indicators of malodors from both raw pig manure and anaerobic lagoon liquid [20,23]. Previous studies reported that the use of polymer-enhanced solid–liquid separation of pig manure did not strongly affect the strength of the selected odor compounds with respect to untreated pig manure [13,14]. During our odor study, SS pre-treatment reduced the influent average concentrations of phenol, p-cresol, 4-ethylphenol, indole, and skatole by 87%, 18%, 15%, 28%, and 52%, respectively, with regard to the untreated control (Table 2). These reductions in odorous compound concentrations with the SS pre-treatment were likely related to the adsorption of odor compounds to separated solids [14,24]. However, remarkable reductions of 98–99% in concentration of the selected aromatic compounds with respect to an untreated control were reported after solid–liquid separation followed by biological nitrification–denitrification treatment in full-scale wastewater treatment systems [13,14]. According to Loughrin et al. [14], the largest reduction of malodorous compounds after nitrification–denitrification treatment was due to their utilization by the suspended denitrification bacteria as a soluble carbon source in anaerobic respiration while aerobic respiration in the nitrification was responsible for further reductions. Likewise, the SS + NDN pre-treatment influent had reduced concentrations of all five aromatic odor compounds by about 99% with respect to the influent of the control. Reductions in concentration of selected odor compounds corresponded, except for pH, with water-quality parameter concentration reductions trend of Control > SS > SS + NDN (Table 2).