“…Furthermore, DMA, which is a precursor of NDMA, is formed from decomposition of NDMA in some of these treatments, and re-generation of NDMA can occur in the presence of chloramine or nitrite (Mitch and Sedlak, 2002). With the unique shape selectivity, zeolites have been studied for adsorbing nitrosamines from gas stream and solution (Zhou and Zhu, 2005;Pinisakul et al, 2008;Kamaloo et al, 2013;Li et al, 2013;Sun et al, 2014). Strong binding of NDMA molecules occurs in the zeolitic channels because of the interaction between the oxygen or nitrogen atoms of NDMA molecules and the silicon atoms of all-silica MFI framework, sodium atoms of Na-ZSM-5, and hydrogen of H-ZSM-5 (Kamaloo et al, 2013).…”