Effects of pH on the chlorination process of phenols in drinking water

Factorial analysis of the trihalomethane formation in the reaction of colloidal, hydrophobic, and transphilic fractions of DOM with free chlorine

“…Thus, pH would affect the equilibrium of the reaction. The effects of pH on chlorination process must be explained simultaneously by the deprotonation of hypochlorite and/or the organic compound which may change the reaction kinetic (Westerhoff et al 2004;Ge et al 2006). 3.…”

Removal of bromide by aluminium chloride coagulant in the presence of humic acid

“…However, an obvious drawback of disinfection is the formation of disinfection by-products (DBPs) [5,6]. Although bromide is generally considered non-toxic at concentrations found in most drinking water sources, it reacts with a variety of commonly used disinfectants, most notably ozone, chlorine and chloramine, to produce bromo-DBPs.…”

Halogenating reaction activity of aromatic organic compounds during disinfection of drinking water

“…7, the increase of pH from 7 to 8 had large effect on and significantly decreased the for- mation of the dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) species. Ge et al [26] studied effects of pH on the chlorination process of phenol, and the results indicated that phenol was easy to be substituted by chlorine in neutral or alkaline media and the initial reaction rate of phenol increased with the increase of pH from 6 to 9. The kinetics of reaction of phenol with HOCl was studied in aqueous solutions between pH 2 and pH 12 [27].…”