Comparing three Australian natural organic matter isolates to the Suwannee river standard: Reactivity, disinfection by-product yield, and removal by drinking water treatments

Watson, Kalinda; Farré, María José; Knight, Nicole

doi:10.1016/j.scitotenv.2019.05.416

Cited by 8 publications

(4 citation statements)

References 37 publications

(37 reference statements)

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“…This opposite trend can be explained in terms of the different SUVA values, high and low, for Suwannee River and Lake Kinneret, respectively. The high SUVA of Suwannee River indicates that a large fraction of the DOM is composed of dissolved humic substances as reported (Croue et al, 2000;Korshin et al, 1999;Watson et al, 2019), which have a high attraction to the positively charged GPDADMAC-MMT sorbent.…”

Section: Adsorption Of Dom From Lake Kinneret By Gac and Gpdadmac-mmt Columnsmentioning

confidence: 58%

Dissolved organic matter adsorption from surface waters by granular composites versus granular activated carbon columns: An applicable approach

et al. 2020

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Section: Adsorption Of Dom From Lake Kinneret By Gac and Gpdadmac-mmt Columnsmentioning

confidence: 58%

Dissolved organic matter adsorption from surface waters by granular composites versus granular activated carbon columns: An applicable approach

et al. 2020

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“…NOM consists of carbon-containing substances and energy sources for aquatic organisms and can, thus, influence the carbon cycle and ecosystems. In addition, it is considered a problematic material that causes taste, odor, and membrane fouling and produces disinfection byproducts in drinking water [4][5][6]. Therefore, NOM has been the subject of extensive research over the past few decades in environmental science and engineering fields.…”

Section: Graphical Abstract 1 Introductionmentioning

confidence: 99%

“…The former contained 97% of hydrophobic fraction, whereas the latter only had 23%. In addition, Watson et al [5] reported differences in the reactivity of NOMs obtained from vari-ous sources. Three drinking water sources in Australia were studied, in which SRNOM was treated using different water purification processes to compare the removal efficiency between the NOMs from the three water sources and SRNOM.…”

Section: Graphical Abstract 1 Introductionmentioning

confidence: 99%

Comparison of molecular characteristics between commercialized and regional natural organic matters

Lee,

Park

2023

Environmental Engineering Research

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Natural organic matter (NOM) is a ubiquitous substance in natural aquatic ecosystems that is a significant component in any experiment involving water. However, experimentally simulating the aquatic conditions using NOMs from natural sources remains difficult. As a result, previous experimental studies have predominantly relied on commercialized NOMs. This study aimed to comprehensively compare the characteristics of two commercialized NOMs (Suwannee River NOM: SRNOM, Mississippi River NOM: MRNOM) and two regional NOMs (Nakdong River NOM: NDNOM, effluent organic matter: EfOM) using various analytical methods during water dissolution. Both commercialized NOMs showed low conductivity (SRNOM: 28.6 μS/cm, MRNOM: 35.4 μS/cm) and were highly humidified (SRNOM: HIX 14.22, MRNOM: HIX 11.44), whereas NOMs from natural water had relatively higher conductivity (NDNOM: 365.7 μS/cm, EfOM: 398.8 μS/cm) and lower humification (NDNOM: HIX 2.47, EfOM: HIX 2.50). The SRNOM and MRNOM contained large amounts of tannin-like substances (SRNOM: 43.5%, MRNOM: 43.1%). The NDNOM had a humidification state similar to that of the EfOM, except for the portion of protein-like biopolymer, which was smaller. The different characteristics of the samples can be critical in selecting appropriate NOMs for use in future studies because they can significantly influence the experimental chemical reaction.

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“…Since the presence of THMs in drinking water is related to the increase in cases of bladder cancer, rectal cancer, and spontaneous abortion, the maximum contaminant level [MCL] of THMs were set by the environmental agencies. Nowadays, the maximum concentration of THMs is established at 100 µg L −1 both in the USA and Europe [3,4].…”

Section: Introductionmentioning

confidence: 99%

Alternative Ecosorbent for the Determination of Trihalomethanes in Aqueous Samples in SPME Mode

et al. 2022

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A new sorbent material based on modified clay with ionic liquid immobilized into an agarose film was developed as part of this study. It was applied to determine organochlorine pollutants, like disinfection byproducts, through headspace solid-phase microextraction-gas chromatography-electron capture detection (HS-SPME-GC-ECD). The disinfection byproducts determined in this study were used as model molecules because they were volatile compounds, with proven severe effects on human health. Their presence in aquatic environments is in trace concentrations (from pg L−1 to mg L−1). They are classified as emergent pollutants and their determination is a challenge for analytical chemists. The parameters which affected the extraction efficiency, i.e., number and distance between SPME discs, salt concentration, the temperature of extraction, extraction time, and desorption time, were optimized. A wide linear dynamic range of 10–1000 ng mL−1 and coefficients of determination better than 0.997 were achieved. The limits of detection and the limits of quantitation were found in the ranges of (1.7–3.7) ng mL−1 and (5.6–9.9) ng mL−1, respectively. The precision, expressed as relative standard deviation (RSD), was better than 8%. The developed sorbent exhibits good adsorption affinity. The applicability of the proposed methodology for the analysis of trihalomethanes in environmental and water samples showed recoveries in the range of 86–95%. Finally, the newly created method fully complied with the principles of green chemistry. Due to the fact that the sorbent holder was made of agarose, which is a wholly biodegradable material, sorbent clay is a widespread material in nature. Moreover, the reagents intercalated into the montmorillonite are new green solvents, and during the whole procedure, low amounts of organic solvents were used.

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Comparing three Australian natural organic matter isolates to the Suwannee river standard: Reactivity, disinfection by-product yield, and removal by drinking water treatments

Abstract: Comparing three Australian natural organic matter isolates to the Suwannee river standard: reactivity, disinfection by-product yield, and removal by drinking water treatments.

Cited by 8 publications

References 37 publications

Dissolved organic matter adsorption from surface waters by granular composites versus granular activated carbon columns: An applicable approach

Dissolved organic matter adsorption from surface waters by granular composites versus granular activated carbon columns: An applicable approach

Comparison of molecular characteristics between commercialized and regional natural organic matters

Alternative Ecosorbent for the Determination of Trihalomethanes in Aqueous Samples in SPME Mode

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