Variations of disinfection byproduct precursors through conventional drinking water treatment processes and a real-time monitoring method

Zhang, Xiaoxiao; Shen, Jimin; Huo, Xiaoyu; Li, Jianwei; Zhou, Yaoyu; Kang, Jing; Chen, Zhonglin; Chu, Wei; Zhao, Shengxin; Bi, Lanbo; Xu, Xiaotong; Wang, Binyuan

doi:10.1016/j.chemosphere.2021.129930

Cited by 23 publications

(19 citation statements)

References 44 publications

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“…S2a) to the hydrophilic fraction (Fig. S2b) (Liu et al, 2011;Pi et al, 2021;Roccaro et al, 2014;Song et al, 2009;Zhang et al, 2021). So, although the column capacity factor k' value did not affect the comparison between two fractionation techniques, it stays important to be aware of this value at all times.…”

Section: Trihalomethanesmentioning

confidence: 96%

“…In contradiction to the above ndings, increasing formation potential with increasing molecular weight have also been reported and some studies show no correlation at all between the formation potential and molecular weight. Con icting conclusions exist as well for both speci c di-halogenated and tri-halogenated acetic acid formation potentials and emerging disinfection by-products (An et al, 2017;Avsar et al, 2015;Chang et al, 2001;Chiang et al, 2002;Gang et al, 2003;Ge et al, 2020;Goslan et al, 2004;Hu et al, 2015;Hua and Reckhow, 2007b;Hua et al, 2015;Hua et al, 2020;Karapinar et al, 2014;Kitis et al, 2002;Lin et al, 2014;Liu et al, 2011;Özdemr, 2014;Pi et al, 2021;Pramanik et al, 2015;Wei et al, 2008a;Wei et al, 2008b;Xu et al, 2007;Xu et al, 2011;Zhang et al, 2021;Zhang et al, 2020b;Zhang et al, 2010;Zhang et al, 2018;Zhao et al, 2006;Zhao et al, 2009).…”

Section: Identi Cation Of Membrane Fractions Involved In Disinfection...mentioning

confidence: 99%

“…No assessment of the effect of SUVA 254 could be made due to a lack of data. Table S1 provides the data collected for emerging disinfection byproducts, but this dataset is too limited to draw any conclusion (Ge et al, 2020;Hua et al, 2015;Hua et al, 2020;Lin et al, 2014;Zhang et al, 2021;Zhang et al, 2020b). Also in literature, con icting trends between speci c trihalomethane formation potential and molecular weight range are stated.…”

Section: Identi Cation Of Membrane Fractions Involved In Disinfection...mentioning

confidence: 99%

“…have equally important trihalomethane formation potential as hydrophobic organics at short reaction times (~ 40%), while transphilic organic matter seems slightly more reactive after 7 days of reaction and high chlorine dose (Fig. 7b,d) (Agbaba et al, 2014;Chowdhury et al, 2008;Fang et al, 2021;Goslan et al, 2002;Goslan et al, 2004;Hanigan et al, 2013;Hu et al, 2015;Hua and Reckhow, 2007b;Hua et al, 2015;Li et al, 2014;Lin and Wang, 2011;Lin et al, 2014;Liu et al, 2011;Molnar et al, 2012a;Molnar et al, 2013;Molnar et al, 2012b;Musikavong et al, 2016;Niu et al, 2015;Phetrak et al, 2016;Pi et al, 2021;Roccaro et al, 2014;Smith and Al Qabany, 2009;Tubić et al, 2013;Wang et al, 2013;Wei et al, 2008a;Wei et al, 2008b;Xu et al, 2007;Xue et al, 2010;Zhang et al, 2021;Zhao et al, 2013;Zhi-sheng et al, 2009).…”

Section: Trihalomethanesmentioning

confidence: 99%

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Identification of disinfection by-product precursors by natural organic matter fractionation: a review

et al. 2022

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During water disinfection, natural organic matter reacts with chlorinated reagents to produced harmful byproducts, yet the formation and nature of those byproducts are poorly known. Therefore, scientists have focused on the fractionation of natural organic matter with membranes or resins to better understand how and which organic matter fractions react during chlorination. Here we compared the reactivity of disinfection by-products for various organic fractions with a meta-analysis of data from 400 water samples published in 80 publications, with focus on chlorination time and dose, (SUVA 254 ) and the column capacity factor used during resin fractionation. SUVA 254 refer to speci c ultraviolet absorbance at 254 nm divided by the organic matter concentration. We found that hydrophobic compounds have 10-20% higher reactivity to both trihalomethane and haloacetic acid formation, compared to hydrophilic compounds in waters with high SUVA 254 above 2 L/(mg•m), while hydrophobic and hydrophilic compounds have equal reactivity in waters with low SUVA 254 . On the other hand, hydrophilic compounds are 20-80% more reactive towards emerging disinfection by-products, regardless of SUVA 254 .Chlorination time and dose does not in uence the reactivity ratio between the different fractions. An increase in column capacity factor can shift the reactivity ratio from hydrophobic to hydrophilic fractions. Dead-end, stirred cell ultra ltration membrane fractionation might not always produce sharply separated fractions, which is mainly due to fouling. Therefore, no clear correlation could be found between membrane fractions and all investigated disinfection by-product groups.

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Section: Trihalomethanesmentioning

confidence: 96%

Section: Identi Cation Of Membrane Fractions Involved In Disinfection...mentioning

confidence: 99%

Section: Identi Cation Of Membrane Fractions Involved In Disinfection...mentioning

confidence: 99%

Section: Trihalomethanesmentioning

confidence: 99%

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Identification of disinfection by-product precursors by natural organic matter fractionation: a review

et al. 2022

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“…The task of water treatment in urban waterworks is to remove impurities in the water through necessary treatment methods to make it meet the water quality requirements for drinking water. The conventional treatment process is mainly composed of flocculation, sedimentation or clarification, filtration, and disinfection, as used by most of the waterworks in the world [5]. The water treatment effect has relatively high requirements for the raw water quality of the water source.…”

Section: Introductionmentioning

confidence: 99%

Development and Application of a Hydrogeochemical Model for the Groundwater Treatment Process in Waterworks

Yan

Zhu

et al. 2022

Water

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Drinking water quality is one of the most important factors affecting human health. The task of the waterworks is to purify raw water into drinking water. The quality of drinking water depends on two major factors: the raw water quality, and the treatment measures that are applied in the waterworks. Since the raw water quality develops over time, it must be determined whether the treatment measures currently used are also suitable when the raw water quality changes. For this reason, a hydrogeochemical model relevant to the drinking water quality during the treatment process was developed. By comparing the modeled results with the measured values, with the exception of chloride and sodium, all other relevant water quality parameters were consistent with one another. Therefore, the model proved to be plausible. This was also supported by the results of mass balance. The model can be used to forecast the development of drinking water quality, and can be applied as a tool to optimize the treatment measures if the raw water conditions change in the future.

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Impact of climate change on formation of nitrogenous disinfection by-products. Part II: water blooming and enrichment by humic substances

Kozari,

Gkellis,

Voutsa

2024

Environ Sci Pollut Res

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Climate change affects the concentration and characteristics of dissolved organic matter (DOM) in surface water. The changes in composition of DOM have many implications to drinking water quality, especially in the case of formation of disinfection by-products (DBPs). The aim of this study was to investigate the formation of nitrogenous DBPs (N-DBPs) during chlorination and chloramination, caused by the alternation of surface water’s DOM driven by climate change. For this reason, two different cases were examined: (a) rise of algal organic matter (AOM) due to water blooming and (b) water enrichment by humic substances. The target compounds were haloacetonitriles (HANs), haloacetamides (HAcAms), and halonitromethane (TCNM). The results showed that Anabaena appears to be a major precursor for HAcAms and TCNM, while humic acids are precursors for HANs. The results of the mixtures presented the same pattern. During the water blooming case, HAcAms and TCNM formation are in favor, while during water enrichment by humic substances case, HANs is the N-DBP group with higher formation yield. Cloraminated samples presented higher values of cytotoxicity and genotoxicity compared to the chlorinated. Graphical Abstract

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Variations of disinfection byproduct precursors through conventional drinking water treatment processes and a real-time monitoring method

Cited by 23 publications

References 44 publications

Identification of disinfection by-product precursors by natural organic matter fractionation: a review

Identification of disinfection by-product precursors by natural organic matter fractionation: a review

Development and Application of a Hydrogeochemical Model for the Groundwater Treatment Process in Waterworks

Impact of climate change on formation of nitrogenous disinfection by-products. Part II: water blooming and enrichment by humic substances

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