Chlorination byproducts of amino acids in natural waters

Comparison of free amino acids and short oligopeptides for the formation of trihalomethanes and haloacetonitriles during chlorination: Effect of peptide bond and pre-oxidation

“…5), as well as by further substitution reactions (reactions C in Fig. 5), in previous studies [31,42,51]. And, Tyr-Ala formed more HANs than Ala-Tyr (Fig.…”

Impact of pre-ozonation on disinfection by-product formation and speciation from chlor(am)ination of algal organic matter of Microcystis aeruginosa

“…However, IOM exhibited a reduction in HK formation by 31.2% (3.0 mg/L O 3 ). As known, ozonation could produce aldehydes and methyl ketone, which are the precursors of HKs, and could further oxidize the formed 1,1-dichloro-2-propanone (1,1-DCP) to 1,1,1-trichloro-2-propanone (1,1,1-TCP) (Trehy et al, 1986). Since increasing reaction time, chlorine dosage and temperature may increase the formation of the relatively stable C-DBPs (e.g.…”

Formation of haloacetamides during chlorination of dissolved organic nitrogen aspartic acid

“…Stability of HANs depends greatly on their chemical structures and the solution pH [20]. A faster hydrolysis pathway of DCAN in basic media was reported by Glezer and co-workers as shown in Eq.…”