Müller T S, Sun Z, Kumar G, Itoh K, Murabayashi M
Yokohama National University, Institute of Environmental Science and Technology, Yokohama, Japan.
Chemosphere. 1998 Apr;36(9):2043-55. doi: 10.1016/s0045-6535(97)10089-3.
Treatment of 2,4-D polluted waters with photocatalysis leads to the buildup of high concentrations of the long living intermediate 2,4-DCP. A new approach using a combination of ozonolysis and photocatalysis gave better degradation results with lower intermediate concentrations. The advantages of photocatalysis giving a constant decline in TOC and of ozonolysis giving no buildup of high intermediate concentrations were combined. Degradation data of 2,4-D for photocatalysis, ozonolysis and the combination of both for different pH ranges are given. Data on the main intermediate 2,4-DCP are given for the three different approaches.
