Abstract
This study describes the analysis and degradation of odor compounds from industrial park. This approach includes (1) development of a method including adsorption of VOCs onto a sorbent followed by thermal desorption pre-concentration and gas chromatography coupled to a mass spectrometry quantification and qualitation, (2) development of odor dispersion model suiting for the prediction of ambient odor concentrations and dispersion, (3) developed of using photocatalytic to destruct VOCs, (4) developed of GC-MS thermal desorption system with simultaneous olfactometry for determination of odor compound. After contamination was modified from TD/GC-MS, industrial and urban air sampling were analyzed. The identification of organic compounds by GC/MS is useful in un-target compound by retention time and mass spectrum. It’s good for applicable to analyze odor compound from industrial park. The ISC and AUSPLUME with wind velocity meteorological combined frequency is used to establish a simulation model for odor pollutant ambit, intensity, frequency and probability. The odor Dispersion modeling can be applicable to environmental impact statement and adjust air pollution control device to prevent and control the odor pollution. The photocatalytic degradation of Toluene, Chlorobenzene, n-BA, n-Butanol was studied in a photoreactor with TiO2. In the absence of O2, gaseous imtermediates including Methy Formate, Propanal, Acetone, Butanal, MEK, n-Heptane, i-Heptane, n-Hexane, i-Hexane, n-Pentane were be detected by GC/MS. The odor threshold of TD-GC-MS/Olfactometry system is 32∼316 times in distance from the static olfactometry (triangle odor bad method). In the case of perfume, the odor compounds were separated by GC coupled to a mass spectrometry and Olfactometry that combine chemical and sensory analysis.