Abstract
Fifteen volatile organic pollutants were spiked in blank water at the concentration of $20{\mu}g/L$ and analyzed with Purge and Trap and GC/MS. As a result, the overall mean recovery of 100% was obtained with a mean relative standard deviation of 3.6%. The method detection limits were in the range of $1.9{\sim}3.3{\mu}g/L$. In the wastewater analysis of Banwol dyeing comlex, 15 organic compounds were identified and three of these were quantified. Among the compounds identified, only trichloroethylene and tetrachloroethylene are regulated in wastewater by the Korea Ministry of Environment. But, the concentration of these two compounds were below the government allowance level.
15종의 휘발성 유기오염물질을 blank water에 $20{\mu}g/L$의 농도로 첨가하여 Purge and Trap과 Gas Chromatograph/Mass Spectrometer(GC/MS)로 분석하였다. 그 결과 100%의 총평균 회수율과 3.6%의 평균상대표준편차를 얻었으며, 검출한계는 $1.9{\sim}3.3{\mu}g/L$를 나타내어 분석법이 적합함을 알 수 있었다. 반월염색단지 공동폐수처리장의 폐수를 분석한 결과 15종의 유기물이 검출되었으며, 이 중 미국 EPA에서 규제하는 priority pollutant는 trichloroethylene, tetrachloroethylene, toluene, ethylbenzene 등 4종이었다. 한편, 환경부가 폐수 중에서 규제하는 trichloroethylene과 tetrachloroethylene의 농도는 각각 34.6과 $75.6{\mu}g/L$로 배출허용기준 이하로 검출되었다.