Abatement of hydrogen sulfide in aqueous media using hydrogen peroxide and transition metal catalyst

摘要

Aqueous media containing the toxic and corrosive gas hydrogen sulfide is treated with hydrogen peroxide in the presence of transition metal catalyst to oxidize the sulfide to a non-volatile form. The mole ratio of hydrogen peroxide to hydrogen sulfide is less than 1:1. Abatement in excess of 95% can be achieved in less than one minute at ambient temperature. For rapid reaction it is preferable to introduce the transition metal to the media before introduction of the hydrogen peroxide.