Nitrosamines in pilot-scale and full-scale wastewater treatment plants with ozonation

Ozone-based treatment trains offer a sustainable option for potable reuse applications, but nitrosamine formation during ozonation poses a challenge for municipalities seeking to avoid reverse osmosis and high-dose ultraviolet (UV) irradiation. Six nitrosamines were monitored in full-scale and pilot...

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Bibliographic Details
Published in:Water research (Oxford) 2015-04, Vol.72, p.251-261
Main Authors: Gerrity, Daniel, Pisarenko, Aleksey N., Marti, Erica, Trenholm, Rebecca A., Gerringer, Fred, Reungoat, Julien, Dickenson, Eric
Format: Article
Language:English
Subjects:
Activated sludge
Australia
Dimethylnitrosamine - analysis
Effluents
Formations
N-nitrosodimethylamine (NDMA)
Nitrosamine
Nitrosamines - analysis
Ozone
Ozone - chemistry
Pilot Projects
Potable reuse
Reverse osmosis
Sustainability
Time Factors
Ultraviolet
United States
Waste Disposal, Fluid
Waste Water - chemistry
Wastewater
Wastewater treatment
Water Purification
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Summary:Ozone-based treatment trains offer a sustainable option for potable reuse applications, but nitrosamine formation during ozonation poses a challenge for municipalities seeking to avoid reverse osmosis and high-dose ultraviolet (UV) irradiation. Six nitrosamines were monitored in full-scale and pilot-scale wastewater treatment trains. The primary focus was on eight treatment trains employing ozonation of secondary or tertiary wastewater effluents, but two treatment trains with chlorination or UV disinfection of tertiary wastewater effluent and another with full advanced treatment (i.e., reverse osmosis and advanced oxidation) were also included for comparison. N-nitrosodimethylamine (NDMA) and N-nitrosomorpholine (NMOR) were the most prevalent nitrosamines in untreated (up to 89 ng/L and 67 ng/L, respectively) and treated wastewater. N-nitrosomethylethylamine (NMEA) and N-nitrosodiethylamine (NDEA) were detected at one facility each, while N-nitrosodipropylamine (NDPrA) and N-nitrosodibutylamine (NDBA) were less than their method reporting limits (MRLs) in all samples. Ozone-induced NDMA formation ranging from
ISSN:0043-1354
1879-2448
DOI:10.1016/j.watres.2014.06.025