Abstract
Low temperature catalytic oxidation was studied at pilot plant scale to destroy benzene-toluene-xylenes (BTX) from air after air stripping of contaminated groundwater. This technique successfully handled wide variations of benzene concentrations between 5–111 mg Nm−3. It consistently oxidised benzene at 265°C to concentrations below the technical target of 5 mg Nm−3. Costs studies indicate that the treatment costs with low temperature catalytic oxidation are lower than those with the alternative technology of adsorption on activated carbon for air flowrates above 1,000 Nm3 h−1.
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