Evaluation of trihalomethane formation potential in function of oxidation processes used during the drinking water production process

Synergy between surface adsorption and photocatalysis during degradation of humic acid on TiO2/activated carbon composites

“…Thus, the elimination of humic acids is required before the chlorination of drinking water, and the heterogeneous photocatalytic degradation has shown great potential for NOM removal [5][6][7].…”

Effects of ozone and ozone/peroxide pretreatments on disinfection byproduct formation during subsequent chlorination and chloramination

“…Similarly, the impacts of O 3 /H 2 O 2 oxidation on DBP formation vary widely depending on species. It has been reported that, compared with O 3 alone, O 3 /H 2 O 2 can remove 21% more of the HAA formation potential [9], equally decrease or maintain THM formation potential [10], and increase the formation of dissolved organic halogens. Formation of emerging nitrogenous DBPs (N-DBPs) under sequenced ozonation-chlorination (O 3 -Cl 2 ) and ozonation-chloramination (O 3 -NH 2 Cl) processes has been studied infrequently.…”

Humic acid and trihalomethane breakdown with potential by-product formations for atmospheric air plasma water treatment

“…NOM comprises of two fractions; humic substances (HS), which are composed of humic acids, fulvic acids, and non-humic substances (non-HS), which include carbohydrates, lipids, and amino acids [3]. Furthermore, humic acids constitute a major fraction of NOM, of which the soluble portion (aromatic compounds) of humic substances may react with chlorine to form trihalomethanes [4]. It has been reported that these THMs are carcinogens [5].…”