“…Previous efforts were made to explore the differences of final products between the reactions of disinfectants with NOM and with organic compound absorbed onto AC, as shown in Table 2 (McCreary and Snoeyink, 1981;Chen et al, 1982;McCreary et al, 1982;Chen et al, 1984;Voudrias et al, 1985b;a;Jackson et al, 1987;Hwang et al, 1990;Gonce and Voudrias, 1994;Vel Leitner et al, 1994). Many unwanted oxidation products are identified from the latter reaction pathway, including hydroxylation products, quinones, chlorine substitution products, carboxylation and oxidative coupling products (Chen et al, 1984).…”