Nuclear magnetic resonance enables understanding of polydiallyldimethylammonium chloride composition and N-nitrosodimethylamine formation during chloramination

被引：0

作者：

Donovan, Samantha ^{[1
]}

Atkinson, Ariel J. ^{[2
]}

Fischer, Natalia ^{[2
]}

Taylor, Amelia E. ^{[3
]}

Kieffer, Johann ^{[4
]}

Croue, J. P. ^{[5
]}

Westerhoff, Paul ^{[2
]}

Herckes, Pierre ^{[1
]}

机构：

[1] Arizona State Univ, Sch Mol Sci, Tempe, AZ 85281 USA

[2] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ USA

[3] SNF Polychem, Bay St Louis, MS USA

[4] SNF SA, Andrezieux Boutheon, France

[5] Univ Poitiers, Inst Chim Milieux & Mat Poitiers, UMR CNRS 7285, Poitiers, France

来源：

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY | 2021年 / 7卷 / 06期

关键词：

WATER-TREATMENT POLYMERS; WASTE-WATER; NDMA FORMATION; NITROSAMINE PRECURSORS; DRINKING-WATER; KINETICS; POLYDADMAC; FATE;

D O I：

10.1039/d1ew00091h

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Polydiallyldimethyl ammonium chloride (polyDADMAC) is the most commonly used polymer at drinking water treatment plants and has the potential to form nitrosamines, like N-nitrosodimethylamine (NDMA), if free polymer is present during the disinfection process. The composition of polyDADMAC solutions used at the industrial scale is not well understood and is difficult to analyze. This study used H-1 and C-13 nuclear magnetic resonance (NMR) to analyze the polymer solution composition. Both H-1 and C-13 NMR are powerful tools that allow study of trace impurities in the solution, structural information such as chain length, and reaction mechanisms. The information garnered through H-1 and C-13 NMR can be used to mitigate NDMA formation at drinking water treatment plants.

引用

页码：1050 / 1059

页数：10

共 34 条

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Adams L.S., 2006, N-Nitrosodimethylamine public health goal for n-nitrosodimethylamine in drinking water

[2] Lower molecular weight fractions of PolyDADMAC coagulants disproportionately contribute to N-nitrosodimethylamine formation during water treatment [J].