Photocatalytic degradation of pollutants from Elcogas IGCC power station effluents

Finally, the effect of lowering pH on the degradation of formates was evaluated after complete cyanides destruction was reached (10 min of reaction). Under the optimum conditions (pH 5.2, [H2O2] = 40 g/l; [TiO2] = 2 g/l), 100% of cyanides and 92% of initial NH3 concentration are degraded after 10 min, whereas 35 min are needed to degrade 98% of formates.