“…For example, photodecomposition, advanced oxidation (e.g. O 3 /H 2 O 2 , UV/H 2 O 2 , UV/TiO 2 ), reverse osmosis and chemical reduction processes have been considered and verified being capable of removing nitrosamines from water efficiently (Gui et al, 2000;Stefan and Bolton, 2002;Sharpless and Linden, 2003;Mezyk et al, 2004;Lee et al, 2005aLee et al, , 2005bDavie et al, 2006;Landsman et al, 2007;Lee et al, 2007;Plumlee and Reinhard, 2007;Frierdich et al, 2008;Zhou et al, 2012;Mestankova et al, 2014). In addition to its wide application as a mean for disinfection, UV irradiation is an effective process to decompose nitrosamines including NDMA and NPYR (Stefan and Bolton, 2002;Lee et al, 2005a;Xu et al, 2009).…”