| Title |
Study on the By - product Formation upon Ozone / Hydrogen Peroxide Treatment for TCE and PCE Contaminated Drinking Water |
| Authors |
강준원 ; 박훈수 ( Joon Wun Kang ; Hoon Soo Park ) |
| Abstract |
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. |