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In this paper, we report on the development of a simple, fast, and environment-friendly UV/O3-based method as an improved alternative to the conventional chemical methods using dichromate or permanganate for determining chemical oxygen demand (COD) in water. In the method through the continuous monitoring of O3 and CO2 (concentration and flow rate) before and after reaction, COD can be accurately...
Tri-ethyl phosphate (TEP) degradation is an important water treatment process, and here, we report on the study of O3, UV, and UV/O3 effects. Aqueous TEP solutions containing an initial concentration of 50 ppm phosphorus were treated, respectively, at ambient temperature for different amount of time, and the resulted phosphate ions was quantitatively determined by ion chromatography. Corresponding...
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