Degradation of bromoform and chlorodibromomethane in a catalyzed H2-water system

Oxidation of halogenated organic compounds to C02 and HCI in aqueous suspension of a photocatalyst, Ti02, was reported by Carey et al. (1976), Matthews (1986), Ollis et al. (1984, 1985). Photoreduction of C02 and trihalomethane compounds to CH, was also reported by Maiden and Willner (1986), Wang and Tan (1987), respectively. Recently, catalytic and thermal reductions of trihalomethanes by hydrogen was conducted by Hoke et al. (1984) and Chuang et al. (1986). This study is to obtain the quantitative information of CH4 generated from trihalomethanes in a hydrogen enriched enclosure. Langmuir adsorption model was applied to describe the reaction mechanism.