The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Oxidative degradation of N-nitrosodimethylamine by conventional ozonation and the advanced oxidation process ozone/hydrogen peroxide
Open accessAbstract
This study investigates the oxidative degradation of N-nitrosodimethylamine (NDMA), a probable human carcinogen, by conventional ozonation and the advanced oxidation process ozone/hydrogen peroxide (AOP O(3)/H(2)O(2)). The rate constants of reactions of NDMA with ozone and hydroxyl radical ((*)OH) were determined to be 0.052+/-0.0016M(-1)s(-1) and (4.5+/-0.21)x10(8)M(-1)s(-1), respectively. The experiments performed with buffered deionized water varying solution pH and employing H(2)O(2) and HCO(3)(-) clearly showed that the reaction with (*)OH dominates the NDMA oxidation during ozonation. Conventional ozonation with up to 160 microM (=7.7 mgL(-1)) ozone led to less than 25% NDMA oxidation in natural waters. The AOP O(3)/H(2)O(2) required 160-320 microM ozone ([O(3)](0)/[H(2)O(2)](0)=2:1) to achieve 50-75% NDMA oxidation. However, multiple injections of ozone of the same overall dose somewhat improved the oxidant utilization efficiency by minimizing (*)OH scavenging contribution of oxidants. Methylamine (MA) was found to be a major amino product from NDMA oxidation initiated by (*)OH. The mechanism of NDMA oxidation to MA is discussed based on the results obtained in this study and the previous literature. Bromate formation may be the limiting factor for NDMA oxidation during ozonation and ozone-based AOPs in bromide-containing waters.
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Buxton, G. V., Greenstock, C. L., Helman, W. P., & Ross, A. B. (1988) · Journal of Physical and Chemical Reference Data · doi:10.1063/1.555805 · Cited by 12,332
Sharpless, C. M., & Linden, K. G. (2003) · Environmental Science & Technology · doi:10.1021/es025814p · Cited by 275
Cited by
Hollender, J., Zimmermann, S. G., Koepke, S., Krauss, M., McArdell, C. S., Ort, C., Singer, H., von Gunten, U., & Siegrist, H. (2009) · Environmental Science & Technology · doi:10.1021/es9014629 · Cited by 870
Self-citationChemistry of Ozone in Water and Wastewater Treatment: From Basic Principles to Applications
von Sonntag, C., & von Gunten, U. (2012) · IWA Publishing eBooks · doi:10.2166/9781780400839 · Cited by 768
Self-citationCañizares, P., Paz, R., Sáez, C., & Rodrigo, M. A. (2009) · Journal of Environmental Management · doi:10.1016/j.jenvman.2007.10.010 · Cited by 422
Nielsen, C. J., Herrmann, H., & Weller, C. (2012) · Chemical Society Reviews · doi:10.1039/c2cs35059a · Cited by 386
A superior active and stable spinel sulfide for catalytic peroxymonosulfate oxidation of bisphenol S
Xu, H., Wang, D., Ma, J., Zhang, T., Lu, X., & Chen, Z. (2018) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2018.07.058 · Cited by 328
Metadata
- Authors
- Lee, C., Yoon, J., & Von Gunten, U.
- Venue
- Water Research
- Publisher
- Elsevier BV
- Published
- 2007-02
- Volume
- 41
- Issue
- 3
- Pages
- 581-590
- ISSN
- 0043-1354 (ISSN-L)
- OpenAlex
- W1975382469
- Cited by
- 255
- References
- 2
- FWCI
- 8.39
- Type
- journal article
- Language
- en
- Open access
- green
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- Lee, C., Yoon, J., & Von Gunten, U. (2007). Oxidative degradation of N-nitrosodimethylamine by conventional ozonation and the advanced oxidation process ozone/hydrogen peroxide. Water Research. https://doi.org/10.1016/j.watres.2006.10.033
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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