Characteristics of C-, N-DBPs formation from nitrogen-enriched dissolved organic matter in raw water and treated wastewater effluent

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

“…EOM and IOM extract solutions showed low SUVA values ranging from 0.83 to 1.22 L/mg m, indicating that AOM is less aromatic carbon content. DON concentration of IOM was higher than that of EOM, implying that IOM is likely to have a higher N-DBP formation potential than EOM (Chang et al, 2013). A minor TOC removal ranged from 3.6% to 20% by pre-ozonation, which is consistent with a previous study which reported the typical reduction of DOC from 5% to 20% under typical ozone dose of 2-5 mg/L (Lee et al, 2009).…”

“…Especially, AOM contains numerous carbohydrate, amino acids and proteinaceous compounds, all of which are potential disinfection by-product (DBP) precursors (Fang et al, 2010b;Li et al, 2012;Plummer and Edzwald, 2001;Yang et al, 2011). Also, many of these potential DBP precursors are characterized by more hydrophilic content and/or low molecular weight, and therefore likely to be poorly removed by conventional DWTPs using coagulationsedimentation-filtration (Bond et al, 2012;Chang et al, 2013;Chu et al, 2011;Richardson et al, 2007). Consequently, these may react with disinfectants (e.g., Cl 2 or NH 2 Cl) to form carbonaceous DBPs (C-DBPs) and nitrogenous DBPs (N-DBPs).…”

Effect of Sodic Irrigation Water on Organic Carbon and Nitrogen Concentrations, Fluxes and Exports from Newly Installed St. Augustine Grass Sod in South-Central Texas

“…While these losses typically represent a small fraction of the terrestrial soil organic carbon and nitrogen pools, losses of terrestrially derived DOC affects the solubility and mobility of metals [8,9] and the adsorption of pesticides to soils [10] both of which are likely to be high in urban ecosystems. Furthermore, both DOC and DON have been implicated in the formation of disinfectant byproducts when surface water is disinfected for drinking water supply [11][12].…”

Trihalomethane (THM) formation from synergic disinfection of biologically treated municipal wastewater: Effect of ultraviolet (UV) irradiation and titanium dioxide photocatalysis on dissolve organic matter fractions

“…DBPs in surface water were generally formed by humic acid, fulvic acid and algae derived matters et al In contrast, DBP precursors in biologically treated municipal wastewater were mainly composed of recalcitrant natural organic matter (NOM), synthetic organic chemicals, soluble microbial products (SMPs), etc. [30].…”