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N-Nitrosodimethylamine Synthesis Essay

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  • Oxidation of N-Nitrosodimethylamine (NDMA) Precursors with Ozone and Chlorine Dioxide:  Kinetics and Effect on NDMA Formation Potential

    Environmental Science & Technology

    Lee, Schmidt, Yoon and von Gunten

    200741 (6), pp 2056–2063

    Abstract: The oxidation of N-nitrosodimethylamine (NDMA) precursors during water treatment was investigated using ozone and chlorine dioxide (ClO2). Second-order rate constants for the reactions of model NDMA precursors (dimethylamine (DMA) and 7 tertiary amines) ...

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  • Degradation of Tertiary Alkylamines during Chlorination/Chloramination: Implications for Formation of Aldehydes, Nitriles, Halonitroalkanes, and Nitrosamines

    Environmental Science & Technology

    Mitch and Schreiber

    200842 (13), pp 4811–4817

    Abstract: Drinking water utilities are exploring the use of waters impacted by wastewater effluents and agricultural runoff to meet the demands of growing populations. Due to the elevated organic nitrogen concentrations in these waters, the pathways responsible for ...Chlorination and chloramination of tertiary alkylamines rapidly forms significant concentrations of secondary amines and aldehydes, with very low yields of nitrogenous byproducts.

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  • Molecular Mechanism of NDMA Formation from N,N-Dimethylsulfamide During Ozonation: Quantum Chemical Insights into a Bromide-Catalyzed Pathway

    Environmental Science & Technology

    Trogolo, Mishra, Heeb, von Gunten, and Arey

    201549 (7), pp 4163–4175

    Abstract: During ozonation of drinking water, the fungicide metabolite N,N-dimethylsulfamide (DMS) can be transformed into a highly toxic product, N-nitrosodimethylamine (NDMA). We used quantum chemical computations and stopped-flow experiments to evaluate a ...

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  • Reverse Osmosis Shifts Chloramine Speciation Causing Re-Formation of NDMA during Potable Reuse of Wastewater

    Environmental Science & Technology

    McCurry, Ishida, Oelker, and Mitch

    201751 (15), pp 8589–8596

    Abstract: UV-based advanced oxidation processes (AOPs) effectively degrade N-nitrosodimethylamine (NDMA) passing through reverse osmosis (RO) units within advanced treatment trains for the potable reuse of municipal wastewater. However, certain utilities have ...

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  • Formation of NDMA and Halogenated DBPs by Chloramination of Tertiary Amines: The Influence of Bromide Ion

    Environmental Science & Technology

    Le Roux, Gallard, and Croué

    201246 (3), pp 1581–1589

    Abstract: The formation of NDMA and other DBPs (including THMs, HANs, and HKs) has been investigated by chloramination of several tertiary amines in the absence and presence of bromide ion. NDMA formation from the most reactive tertiary amines (e.g., ...

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  • Formation of N-Nitrosodimethylamine during Chloramination of Secondary and Tertiary Amines: Role of Molecular Oxygen and Radical Intermediates

    Environmental Science & Technology

    Spahr, Cirpka, von Gunten, and Hofstetter

    201751 (1), pp 280–290

    Abstract:N-Nitrosodimethylamine (NDMA) is a carcinogenic disinfection byproduct from water chloramination. Despite the identification of numerous NDMA precursors, essential parts of the reaction mechanism such as the incorporation of molecular O2 are poorly ...

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  • Re-Examining the Role of Dichloramine in High-Yield N-Nitrosodimethylamine Formation from N,N-Dimethyl-α-arylamines

    Meredith E.HuangShiyangHuangDaniel L.McCurry

    Environmental Science & Technology Letters2018 Article ASAP

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Reverse Osmosis Shifts Chloramine Speciation Causing Re-Formation of NDMA during Potable Reuse of Wastewater

    Daniel L.McCurryKenneth P.IshidaGregg L.OelkerWilliam A.Mitch

    Environmental Science & Technology201751 (15), 8589-8596

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Nitrosamine Formation in Amine-Based CO2 Capture in the Absence of NO2: Molecular Modeling and Experimental Validation

    HuancongShiTeeradetSupapRaphaelIdemDonGelowitzColinCampbellMaxBall

    Environmental Science & Technology201751 (13), 7723-7731

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  • Formation of N-Nitrosodimethylamine during Chloramination of Secondary and Tertiary Amines: Role of Molecular Oxygen and Radical Intermediates

    StephanieSpahrOlaf A.CirpkaUrsvon GuntenThomas B.Hofstetter

    Environmental Science & Technology201751 (1), 280-290

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Relative Importance of Different Water Categories as Sources of N-Nitrosamine Precursors

    TengZengCaitlin M.GloverErica J.MartiGwen C.Woods-ChabaneTanjuKaranfilWilliam A.MitchEric R. V.Dickenson

    Environmental Science & Technology201650 (24), 13239-13248

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Structural Modifications to Quaternary Ammonium Polymer Coagulants to Inhibit N-Nitrosamine Formation

    TengZengRussell JingxianLiWilliam A.Mitch

    Environmental Science & Technology201650 (9), 4778-4787

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Impact of Nitrification on the Formation of N-Nitrosamines and Halogenated Disinfection Byproducts within Distribution System Storage Facilities

    TengZengWilliam A.Mitch

    Environmental Science & Technology201650 (6), 2964-2973

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Contribution of N-Nitrosamines and Their Precursors to Domestic Sewage by Greywaters and Blackwaters

    TengZengWilliam A.Mitch

    Environmental Science & Technology201549 (22), 13158-13167

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Role of Chlorine Dioxide in N-Nitrosodimethylamine Formation from Oxidation of Model Amines

    WenhuiGanTomBondXinYangPaulWesterhoff

    Environmental Science & Technology201549 (19), 11429-11437

    Abstract | Full Text HTML | PDF | PDF w/ Links

  • Methadone Contributes to N-Nitrosodimethylamine Formation in Surface Waters and Wastewaters during Chloramination

    DavidHaniganE. MichaelThurmanImmaFerrerYangZhaoSusanAndrewsJinweiZhangPierreHerckesPaulWesterhoff

    Environmental Science & Technology Letters20152 (6), 151-157

    Abstract | Full Text HTML | PDF | PDF w/ Links

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