Photocatalytic-based inactivation of E. coli by UV 282 nm XeBr Excilamp.

The impact of suspended TiO2 particles on the efficiency of UV inactivation of E. coli by XeBr excilamp (282 nm) was assessed using direct and integrating sphere spectroscopy for absorbance measurements in the calculations of UV doses. Complete disinfection (no quantifiable E.

Comparison of UV and UV/H2O2 treatments using excilamps for removal of monochlorophenols in the molecular and anionic form.

The efficiency of UV/H(2)O(2) treatment using KrCl (222 nm) and XeBr (282 nm) excilamps was examined for removal of 2-chlorophenol (2-CP) and 4-chlorophenol (4-CP) from aqueous solution in the molecular form (pH 2 and un-adjusted pH) and anionic form (at pH 11). UV/H(2)O(2) treatment of 2- or 4-CP was initially carried out at un-adjusted pH with varying molar ratios of chlorophenol and H(2)O(2). The para-chlorobenzoic acid was used as a hydroxyl radical (•OH) probe compound.