Characterization of odor released during handling of swine slurry: Part I. Relationship between odorants and perceived odor concentrations

被引：91

作者：

Blanes-Vidal, V. ^{[1
]}

Hansen, M. N. ^{[2
]}

Adamsen, A. P. S. ^{[3
]}

Feilberg, A. ^{[4
]}

Petersen, S. O. ^{[3
]}

Jensen, B. B. ^{[5
]}

机构：

[1] Univ So Denmark, Fac Engn, DK-5230 Odense, Denmark

[2] AgroTech AS, Inst Agro Technol & Food Innovat, DK-8200 Aarhus, Denmark

[3] Univ Aarhus, Fac Agr Sci, Dept Agroecol & Environm, DK-8830 Tjele, Denmark

[4] Danish Technol Inst, Aarhus, Denmark

[5] Univ Aarhus, Fac Agr Sci, Dept Anim Hlth Welf & Nutr, DK-8830 Tjele, Denmark

来源：

ATMOSPHERIC ENVIRONMENT | 2009年 / 43卷 / 18期

关键词：

Odor; Odorants; Principal components analysis (PCA); Slurry; VOLATILE ORGANIC-COMPOUNDS; GAS-CHROMATOGRAPHY; DETECTION THRESHOLDS; HYDROGEN-SULFIDE; LIVESTOCK WASTES; ELECTRONIC NOSE; QUANTIFICATION; OLFACTOMETRY; OPERATIONS; EMISSIONS;

D O I：

10.1016/j.atmosenv.2008.10.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Odor emission from livestock production systems is a major nuisance in many rural areas. This study aimed at determining the major airborne chemical compounds responsible for the unpleasant odor perceived in swine facilities during slurry handling, and at proposing predictive models of odor concentration (OC) based on the concentrations of specific odorants in the air. A multivariate data analysis strategy involving principal components analysis and multiple linear regressions was implemented to analyze the relationships between concentration of 35 gases (measured by GC/MS or gas detection tubes), and the overall OC perceived by sensory analysis. The study compiled data on the concentration of odor and odorants, measured in the headspace of 24 unstored and stored slurry samples collected from three different types of production units on 8 commercial swine farms. Among all the measured constituents, OC was found to have the highest correlation with the sulfur containing compounds (i.e. hydrogen sulfide, dimethylsulfide, dimethyldisulfide, dimethyltrisulfide). The concentration of hydrogen sulfide accounted for 68% of the variation in OC above the stirred slurry samples. The highest concentrations of volatile organic compounds were observed for phenols and indoles, which made a significant contribution to the overall OC when the slurry was fresh. The contribution of ammonia to the OC was only significant in the absence of hydrogen sulfide. The precision of predictive models of OC based on the concentration of specific odorants in the air was satisfactory (R-2 between 0.66 and 0.89). Hence, this study suggests that monitoring of specific odor compounds released from agitated swine slurry can be used to predict the concentration of odor perceived close to the source (e.g. at storage units), allowing the assessment of odor nuisance potentials. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2997 / 3005

页数：9

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