N-Nitrosodimethylamine (NDMA) and its precursors in water and wastewater: A review on formation and removal

Sgroi, Massimiliano; Vagliasindi, Federico G.A.; Snyder, Shane A.; Roccaro, Paolo

doi:10.1016/j.chemosphere.2017.10.089

Cited by 169 publications

(82 citation statements)

References 151 publications

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“…Drawbacks of AOP methods comprise the generation of oxidation by-products [29] that, in defined situations, may gather in water and be more poisonous than the original compound. For instance, O 3 /H 2 O 2 and UV/H 2 O 2 may conduct to either the generation or the decomposition of bromate [30], polyfluorinated chemicals [31] [37]. Due to both the AOP injection and the type of matrix play deciding roles, it is indispensable to accurately estimate such influences prior to applying for water reuse [38].…”

Section: Advanced Oxidation Processes (Aops)mentioning

confidence: 99%

Direct Potable Reuse: The Singapore NEWater Project as a Role Model

Ghernaout¹,

Elboughdiri²,

Alghamdi³

2019

OALib

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In Singapore, indirect potable water reuse has been applied during the last two decades. Now, water reuse furnishes around 30% of the nation's water request and the well-known NEWater success story has greatly participated in transforming Singapore into a global hydro hub for pioneering novel water techniques. This work discusses the recent technological improvements and the outlooks for water reuse in Singapore as a model. Fields of attentions comprise membrane exploitation (involving forward, reverse and pressure retarded osmosis, as well as membrane bioreactors), advanced oxidation processes, electrochemical methods, and their combination as cost-effective tailored solutions to tackle novel dares as diverse as direct potable reuse. The challenge is to duplicate the Singapore NEWater success story throughout the world. Efforts should be accomplished to generalize such encouraging and rich experience especially in poor countries where humans are dying because of lack of water or due to diseases caused by contaminated water.

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Section: Advanced Oxidation Processes (Aops)mentioning

confidence: 99%

Direct Potable Reuse: The Singapore NEWater Project as a Role Model

Ghernaout¹,

Elboughdiri²,

Alghamdi³

2019

OALib

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“…In particular, much of the recent attention has been given towards two specific TOrCs namely N-47 nitrosodimethlyamine (NDMA) and 1,4-dioxane. [8][9][10][11] The former is a disinfection by-product occurring ubiquitously in reclaimed wastewater, 9,12 while the latter is a common industrial 49 solvent often accidentally released into the sewer and the environment. 13 Both NDMA and 1,4-dioxane are probable carcinogens and thus are regulated in potable water reuse applications.…”

Section: Introductionmentioning

confidence: 99%

Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis

Fujioka

Kodamatani

Takeuchi

et al. 2018

Environ. Sci.: Water Res. Technol.

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“…These N -Nitrosamines include N -Nitrosodimethylamine (NDMA), N -Nitrosomethylethylamine (NMEA), N -Nitrosopyrrolidine (NPYR), N -Nitrosodiethylamine (NDEA), N -Nitrosopiperidine (NPIP), N -Nitrosomorpholine (NMOR), N -Nitrosodipropylamine (NDPA), and N -Nitrosodi- n -butylamine (NDBA). Most of these N -Nitrosamines are probable carcinogens [ 9 ], and their frequent occurrence in raw and secondary-treated wastewater [ 10 , 11 , 12 ] and reclaimed water [ 7 , 13 , 14 , 15 , 16 , 17 ] has been reported. For the augmentation of drinking water sources, the California Department of Public Health sets a drinking water notification level of 10 ng/L for NDMA and NDEA [ 18 ], and the Australian Guidelines for Water Recycling sets guideline values for NDMA (10 ng/L), NDEA (10 ng/L), and NMOR (1 ng/L) [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The fate of NDMA precursors in integrated membrane processes has been studied mainly at microfiltration (MF)–RO treatment plants [ 16 , 37 , 38 ] and ultrafiltration (UF)–RO treatment plants [ 35 , 38 ]. Even though the fate of NDMA precursors in nanofiltration (NF) process has been studied at bench scale, pilot-scale data to assess the fate of NDMA precursors by NF process are very scarce.…”

Section: Introductionmentioning

confidence: 99%

Removal Characteristics of N-Nitrosamines and Their Precursors by Pilot-Scale Integrated Membrane Systems for Water Reuse

Takeuchi

Yamashita

Nakada

et al. 2018

IJERPH

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This study investigated the removal characteristics of N-Nitrosamines and their precursors at three pilot-scale water reclamation plants. These plants applies different integrated membrane systems: (1) microfiltration (MF)/nanofiltration (NF)/reverse osmosis (RO) membrane; (2) sand filtration/three-stage RO; and (3) ultrafiltration (UF)/NF and UF/RO. Variable removal of N-Nitrosodimethylamine (NDMA) by the RO processes could be attributed to membrane fouling and the feed water temperature. The effect of membrane fouling on N-Nitrosamine removal was extensively evaluated at one of the plants by conducting one month of operation and chemical cleaning of the RO element. Membrane fouling enhanced N-Nitrosamine removal by the pilot-scale RO process. This finding contributes to better understanding of the variable removal of NDMA by RO processes. This study also investigated the removal characteristics of N-Nitrosamine precursors. The NF and RO processes greatly reduced NDMA formation potential (FP), but the UF process had little effect. The contributions of MF, NF, and RO processes for reducing FPs of NDMA, N-Nitrosopyrrolidine and N-Nitrosodiethylamine were different, suggesting different size distributions of their precursors.

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N-Nitrosodimethylamine (NDMA) and its precursors in water and wastewater: A review on formation and removal

Cited by 169 publications

References 151 publications

Direct Potable Reuse: The Singapore NEWater Project as a Role Model

Direct Potable Reuse: The Singapore NEWater Project as a Role Model

Online monitoring of N-nitrosodimethylamine for the removal assurance of 1,4-dioxane and other trace organic compounds by reverse osmosis

Removal Characteristics of N-Nitrosamines and Their Precursors by Pilot-Scale Integrated Membrane Systems for Water Reuse

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