Carbonaceous DBP (THMs and HAAs) formation during Cl<sub>2</sub> and ClO<sub>2</sub> treatment of aqueous soluble fractions of soil derived natural organic matter

Padhi, R.K.

doi:10.1039/d1ew00716e

Cited by 3 publications

(1 citation statement)

References 52 publications

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“…A fundamental understanding of the concentration of trihalomethanes is important to plan and implement effective trihalomethanes regulation intervention strategies in drinking water supplies [ 55 ]. In the present study, residual chlorine, UV absorbance, phosphate and hardness as calcium, electron conductivity, combined chlorine and turbidity were found to be the main predictors determining the abundance and distribution of trihalomethanes.…”

Section: Discussionmentioning

confidence: 99%

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Tafesse,

Porcelli,

Hirpessa

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Tafesse,

Porcelli,

Hirpessa

et al. 2023

Heliyon

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Fertilization regime shifts the molecular diversity and chlorine reactivity of soil dissolved organic matter from tropical croplands

Liu

Hao

et al. 2022

Water Research

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Effect of Seawater Intrusion on the Formation of Chlorinated and Brominated Trihalomethanes in Coastal Groundwater

Parveen

Goel

2022

Water

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Around the world, coastal groundwater is increasingly subject to seawater intrusion (SWI). The quality and characteristics of such waters differ from those of surface and groundwater. In the current study, trihalomethane (THM) formation under varying levels of SWI, natural organic matter (NOM), and chloride-to-bromide (Cl/Br) ratio was evaluated. Different levels of SWI were simulated by mixing deionized water with real seawater (RSW) collected from the Indian Ocean or synthetic seawater (SSW) by varying seawater volumes from 0% to 3%. Humic acid (0 to 5 mg/L) was added to represent NOM at concentrations mimicking natural levels of dissolved organic carbon. The chlorine demand of the simulated water samples was significantly correlated to SWI levels and NOM concentrations. THM concentration in SSW increased from 12.64 µg/L to 105.34 µg/L after 24 h and to 115.8 µg/L after 48 h for an increase from 0% to 3% volume of seawater. For water samples simulated with RSW, maximum THMs after 24 h were 119.2 µg/L, and after 48 h were 126.4 µg/L. An increase in NOM concentration in seawater-intruded water samples resulted in increasing THMs, especially tribromomethane. However, the increment in THMs at higher NOM concentration was lower compared to that at low NOM concentration. Chlorine demand was positively correlated only to tribromomethane. An increase in bromide concentration resulted in lower Cl/Br ratio and a concomitant increase in brominated THMs. The bromine substitution factor corresponding to increasing SWI of 0.25–3% decreased from 2.67 to 1.81 over a reaction time of 24 to 48 h, indicating a shift from TBM dominance to chlorinated THMs.

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Carbonaceous DBP (THMs and HAAs) formation during Cl₂ and ClO₂ treatment of aqueous soluble fractions of soil derived natural organic matter

Abstract: surface water dissolved organic matter feature substantial portion of terrestrial origin and serve as important precursor for toxic disinfection byproduct formation.In the present study, organic matter extracted from the composite...

Cited by 3 publications

References 52 publications

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Fertilization regime shifts the molecular diversity and chlorine reactivity of soil dissolved organic matter from tropical croplands

Effect of Seawater Intrusion on the Formation of Chlorinated and Brominated Trihalomethanes in Coastal Groundwater

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Carbonaceous DBP (THMs and HAAs) formation during Cl2 and ClO2 treatment of aqueous soluble fractions of soil derived natural organic matter

Abstract: surface water dissolved organic matter feature substantial portion of terrestrial origin and serve as important precursor for toxic disinfection byproduct formation.In the present study, organic matter extracted from the composite...

Cited by 3 publications

References 52 publications

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Trihalomethanes and physicochemical quality of drinking water in Addis Ababa, Ethiopia

Fertilization regime shifts the molecular diversity and chlorine reactivity of soil dissolved organic matter from tropical croplands

Effect of Seawater Intrusion on the Formation of Chlorinated and Brominated Trihalomethanes in Coastal Groundwater

Contact Info

Product

Resources

About

Carbonaceous DBP (THMs and HAAs) formation during Cl₂ and ClO₂ treatment of aqueous soluble fractions of soil derived natural organic matter