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박훈수(Hoon Soo Park),강준원(Joon Wun Kang) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.3
In drinking water sources, quantitative/qualitative analysis about 56 pesticides and over 200 micropollutants was performed using Purge & Trap, Liquid-Liquid Extraction and XAD resin accumulation preconcentration methods and GC/MS. In that results, various contaminants were identified and target organics for treatment could be selected. Contamination of pesticides was severe in rainy season, august and its level exceeds over EC limit(500ng/L). Most domestic drinking water sources were contaminated with a large portion of phthalates, thus the pollution were suspected from wastewater of plastic industries. Nakdong river water was most severe in pollution of CH₂Cl₂ extractable organics, aliphatic hydrocarbons, pesticides, phenols, phthalates and sulfur compounds, therefore this water was found to be polluted by industrial wastewater, agricultural chemicals heavily.
TCE , PCE 존재하에서 오존 / 과산화수소 정수처리공정에 의한 부산물 생성에 관한 연구
강준원,박훈수 ( Joon Wun Kang,Hoon Soo Park ) 한국물환경학회 1996 한국물환경학회지 Vol.12 No.2
A bench scale investigation was conducted of by products of trichloroethylene(TCE) and tetrachloroethylene(PCE) oxidation by the ozone/hydrogen peroxide advanced oxidation process(AOP). Post-chlorination of ozone/peroxide treated water was also investigated. Byproducts analyzed for TCE and PCE destruction in the ozone/peroxide experiments were chloral hydrate and di-and trichloroacetic acid (DCA and TCA). In TCE spiked (500∼700 ppb) ozone/peroxide runs, chloral hydrate was formed up to the level of 0.2 ppb and was slowly destroyed as the run progressed. Dichloroacetic acid and trichloroacetic acid was produced by the oxidation of TCE and PCE, respectively. In the post-chlorination experiments of PCE Spiked ozone/peroxide runs, concentration of chloral hydrate, DCA, and TCA were higher in the chlorinated water, but the levels seems to be quite below the maximum contamination level goal(MCLG) of USEPA.