The purpose of this research was to study treatment characteristics of main odor substances, such as Trimethylamine and Acetaldehyde, by using 600 Wand 200 W microwave plasmas. Ar and air were used as plasma gases and a cylindrical SiC/Zeolite filter having several Ø 2~3 ㎜ size holes was used as a trigger to obtain a stable plasma even with a relatively low microwave power. The 600 W Ar plasma was used to destroy relatively high concentrated TMA and acetaldehyde from 500 ppm to 2200 ppm and their DREs (Destroy and Removal Ratios) were measured. The 200 W air plasma was also used to measure DREs for TMA and acetaldehyde Jowly concentrated in 4.5 odor strength. The results demonstrated that the Ar plasma produced 70% to 90% efficiency in removing odors substances. The 200 W Air plasma, which was operated at the relatively lower energy level, produced 90% or even above higher efficiency for the odorous materials. It was expected that the air plasma was effectively used to control odorous materials emitted from relatively a small size plant process.

In this paper, the emission processes of odors and VOCs sources for main industries were estimated thorough material balances and literature survey, and the characteristics of odors and VOCs concentration were examined by analysing four year of monitoring data in Jeonbuk Industrial Area. The several sampling sites were selected in the industrial site by considering TRI (Toxics Release Inventory), which were made by the Ministry of Environment based on the kinds and the amount of hazardous chemical materials for the industries, and the wind direction survey for ten years. Air samples were collected once per a season for four years in the sites. GC-PFPD, HPLC, and GC-FID were used for measuring sulfur compounds, aldehyde, and trimethylamine among odorous compounds and GC-MSD was used for VOCs. As the main results of this study, toluene, benzene, acetone, formaldehyde, acetaldehyde, xylene, styrene and chloroform were detected as main volatile organic compounds in this area. Hydrogen sulfide, trimethylamine and acetaldehyde were main detected species the odorous compounds.