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231224s2013 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2013.458
|2 doi
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|a pubmed25n0777.xml
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|a (NLM)24292457
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Yoon, Suchul
|e verfasserin
|4 aut
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|a Occurrence and fate of N-nitrosamines and their formation potential in three wastewater treatment plants in Japan
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|c 2013
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 05.03.2014
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a N-nitrosamines are well known as carcinogens present in the environment. However, studies of the occurrence and fate of N-nitrosamines and their N-nitrosamine formation potential (FP) in wastewater treatment plants (WWTPs) are lacking. Therefore, the objectives of this study were to determine the occurrence of N-nitrosamines in WWTPs, the FP of N-nitrosamines on chloramination during wastewater treatment, and the efficiency of FPNH2Cl reduction by biological treatment. Also, the residual FPNH2Cl in the final discharge was investigated. The efficiencies of removal of N-nitrosamines ranged from 35 to 94% (WWTP O; residential area), from 58 to 98% (WWTP E; industrial area), and from 58% to >99% (WWTP N; industrial area). In WWTP O, the rates of production of N-nitrosodimethylamine (NDMA) (42%) and NDBA (58%) were the highest. In WWTP E, only NDBA (34%) was produced. In WWTP N, NPYR and NPIP (both >99%) were produced. NDMA FPNH2Cl values were very high in influent in all WWTPs. The efficiencies of removal of N-nitrosamine FPNH2Cl during biological treatment ranged from 20% to >99%, but there is no obvious explanation for this variability. Residual N-nitrosamine FPNH2Cl ranged from 2 to 22 ng L(-1). Thus, N-nitrosamines could be produced in water purification or reclamation plants using discharge from WWTPs
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Validation Study
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|a Nitrosamines
|2 NLM
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|a Waste Water
|2 NLM
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|a Nakada, Norihide
|e verfasserin
|4 aut
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|a Tanaka, Hiroaki
|e verfasserin
|4 aut
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 68(2013), 10 vom: 21., Seite 2118-26
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:68
|g year:2013
|g number:10
|g day:21
|g pages:2118-26
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|u http://dx.doi.org/10.2166/wst.2013.458
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