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Factors influencing the photodegradation of N-nitrosodimethylamine in drinking water

  • Bingbing Xu
  • Zhonglin Chen
  • Fei Qi
  • Jimin Shen
  • Fengchang Wu
Research Article

Abstract

In order to provide basic data for practical application, photodegradation experiment of N-nitrosodimethylamine (NDMA) in aqueous solution was carried out with a low-pressure Hg lamp. Effects of the initial concentration of NDMA, solution pH, dissolved oxygen, and the presence of humic acid on NDMA photodegradation were investigated. NDMA at various initial concentrations selected in this study was almost completely photodegraded by UV irradiation within 20 min, except that at 1.07 mmol/L, NDMA could be photodegraded almost completely in the acidic and neutral solutions, while the removal efficiency decreased remarkably in the alkaline solution. Dissolved oxygen enhanced the NDMA photodegradation, and the presence of humic acid inhibited the degradation of NDMA. Depending on the initial concentration of NDMA, NDMA photodegradation by UV obeyed the pseudo-first-order kinetics. Dimethylamine, nitrite, and nitrate were detected as the photodegradation products of NDMA. 1O2 was found to be the reactive oxygen species present in the NDMA photodegradation process by UV, based on the inhibiting experiments using tert-butanol and sodium azide.

Keywords

N-nitrosodimethylamine (NDMA) ultraviolet irradiation degradation kinetic dimethylamine photodegradation product 

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References

  1. 1.
    Stefan M I, Bolton J R. UV direct photolysis of N-nitrosodimethylamine (NDMA): Kinetic and product study. HeIvetica Chimica Acta, 2002, 85(5): 1416–1426CrossRefGoogle Scholar
  2. 2.
    Choi J, Duirk S E, Valentine R L. Mechanistic studies of N-nitrosodimethylamine (NDMA) formation in chlorinated drinking water. Journal of Environmental Monitoring, 2002, 4(2): 249–252CrossRefGoogle Scholar
  3. 3.
    Choi J, Valentine R L. Formation of N-nitrosodimethylamine (NDMA) from reaction of monochloramine: a new disinfection byproduct. Water Research, 2002, 36(4): 817–824CrossRefGoogle Scholar
  4. 4.
    Mitch W A, Sedlak D L. Formation of N-nitrosodimethylamine (NDMA) from dimethylamine duing chlorination. Environmental Science and Technology, 2002, 36(4): 588–595CrossRefGoogle Scholar
  5. 5.
    Gerecke A C, Sedlak D. Precursors of N-nitrosodimethylamine in natrual water. Environmental Science and Technology, 2003, 37(7): 1331–1336.CrossRefGoogle Scholar
  6. 6.
    Choi J, Valentine R L. N-nitrosodimethylamine formation by freechlorine-enhanced nitrosation of dimethylamine. Environmental Science and Technology, 2003, 37(21): 4871–4876CrossRefGoogle Scholar
  7. 7.
    Schreiber I M, Mitch W A. Influence of the order of reagent addition on NDMA formation during chloramination. Environmental Science Technology, 2005, 39(10): 3811–3818CrossRefGoogle Scholar
  8. 8.
    Schreiber I M, Mitch W A. Nitrosamine formation pathway revisited: The importance of dichloramine and dissolved oxygen. Environmental Science and Technology, 2006, 40(19): 6007–6014CrossRefGoogle Scholar
  9. 9.
    Mitch W A, Sharp J O, Trussell R R, Valentine R L, Cohen L A, Sedlak D. L. N-nitrosodimethylamine (NDMA) as a dringking water contaminant: A review. Environmental Engineering Science, 2003, 20 (5): 389–404CrossRefGoogle Scholar
  10. 10.
    Przemyslaw A, Barbara K H, Jacek N. The hazard of N-nitrosodimethylamine (NDMA) formation during water disinfection with strong oxidants. Desalination, 2005, 176(1–3): 37–45Google Scholar
  11. 11.
    Richardson S D. Dininfection by-products and other emerging contaminants in drinking water. TRAC Trends in Analytical Chemistry, 2003, 22(10): 666–684CrossRefGoogle Scholar
  12. 12.
    Mitch W A, Oelker G L, Hawley E L, Deeb R A, Sedlak D L. Minimization of NDMA formation during chlorine disinfection of municipal wastewater by application of pre-formed chloramines. Environmental Engineering Science, 2005, 22(6): 882–890CrossRefGoogle Scholar
  13. 13.
    Andrzejewski P, Kasprzyk-Hordern B, Nawrocki J. Formation of nitrosodimethylamine (NDMA) during chlorine disinfection of wastewater effluents prior to use in irrigation systems. Water Research, 2006, 40(2): 341–347CrossRefGoogle Scholar
  14. 14.
    Choi J, Valentine R L. A kinetic model of N-nitrosodimethylamine (NDMA) formation during water chlorination/chloramination. Water Science and Technology, 2002, 46(3): 65–71Google Scholar
  15. 15.
    Hu R, Ma L. Analysis Method of N-Nitro Compounds. Beijing: Science Press, 1980, 50–52 (in chinese)Google Scholar
  16. 16.
    Tomkins B A, Griest W H, Higgins C E. Determination of N-nitrosodimethylamine at part-per-trillion levels in drinking waters and contaminated groundwaters. Analytical Chemistry, 1995, 67 (23): 4387–4395CrossRefGoogle Scholar
  17. 17.
    Tomkins B A, Griest W H. Determinations of N-nitrosodimethylamine at part-per-trillion concentrations in contaminated groundwaters and drinking waters featuring carbon-based membrane extraction disks. Analytical Chemistry, 1996, 68(15): 2533–2540CrossRefGoogle Scholar
  18. 18.
    Abalos M, Bayona J M, Ventura F. Development of a solid-phase microextraction GC-NPD procedure for the determination of free volatile amines in wastewater and sewage-polluted waters. Analytical Chemistry, 1999, 71(16): 3531–3537CrossRefGoogle Scholar
  19. 19.
    Charrois J W, Arend M W, Froese K L, Hrudey S E. Detecting Nnitrosamines in drinking water at nanogram-per-liter levels using ammonia positive chemical ionization. Environmental Science and Technology, 2004, 38(18): 4835–4841CrossRefGoogle Scholar
  20. 20.
    Liang S, Min J H, Davis M K, Green J F, Remer D S. Use of pulsed-UV processes to destroy NDMA. Journal American Water Works Association, 2003, 95(9): 121–131Google Scholar
  21. 21.
    Gui L, Gillham R W, Odziemkowski M S. Reduction of N-nitrosodimethylamine with granular iron and nickel-enhanced iron. 1. Pathways and kinetics. Environmental Science and Technology, 2000, 34(16): 3489–3494CrossRefGoogle Scholar
  22. 22.
    Odziemkowski M S, Gui L, Gillham R W. Reduction of N-nitrosodimethylamine with granular iron and nickel-enhanced iron. 2. Mechanistic studies. Environmental Science and Technology, 2000, 34(16): 3495–3500CrossRefGoogle Scholar
  23. 23.
    Sharp J O, Wood T K, Alvarez-Cohen L. Aerobic biodegradation of N-nitrosodimethylamine (NDMA) by axenic bacterial strains. Biotechnology and Bioengineering, 2005, 89(5): 608–618CrossRefGoogle Scholar
  24. 24.
    Sharp J O, Wood T K, Alvarez-Cohen L. Attenuation mechanisms of N-nitrosodimethylamine at an operating intercept and treat groundwater remediation system. Journal of Hazardous materials, 2000, B73(2): 179–197Google Scholar
  25. 25.
    Yifru D D, Valentine A N. Uptake of N-nitrosodimethylamine (NDMA) from water by phreatophytes in the absence and presence of perchlorate as a co-contaminant. Environmental Science and Technology, 2006, 40(23): 7374–7380CrossRefGoogle Scholar
  26. 26.
    Davie M G, Reinhard M, Shapley J R. Metal-catalyzed reduction of N-nitrosodimethylamine with hydrogen in water. Environmental Science and Technology, 2006, 40 (23): 7329–7335CrossRefGoogle Scholar
  27. 27.
    Changha L, Wonyong C, Jeyong Y. UV photolytic mechanism of N-nitrosodimethylamine in water: roles of dissolved oxygen and solution pH. Environmental Science and Technology, 2005, 39(24): 9702–9709CrossRefGoogle Scholar
  28. 28.
    Sharpless C M, Linden K G. Experimental and model comparisons of low-and medium-pressure Hg lamps for the direct and H2O2 assisted UV photodegradation of N-nitrosodimethlyamine in simulated drinking water. Environmental Science and Technology, 2003, 37(9): 1933–1940CrossRefGoogle Scholar
  29. 29.
    Lee C, Choi W, Kim Y G, Yoon J. UV photolytic mechanism of N-nitrosodimethylamine in water: Dual pathways to methylamine versus dimethylamine. Environmental Science and Technology, 2005, 39(7): 2102–2106CrossRefGoogle Scholar
  30. 30.
    Chen J, Gu B, Leboeuf E J, Pan H, Dai S. Spectroscopic characterization of structural and functional properties of natural organic matter fractions. Chemosphere, 2002, 48(1): 59–68CrossRefGoogle Scholar
  31. 31.
    Zepp R G, Schlotzhauer P F, Sink R M. Photosensitized transformations involving electronic energy transfer in natural waters: Role of humic substances. Environmental Science and Technology, 1985, 19(1): 74–81CrossRefGoogle Scholar
  32. 32.
    Lam M W, Tantuco K, Mabury S A. Photofate: A new approach in accounting for the contribution of indirect photolysis of pesticides and pharmaceuticals in surface waters. Environmental Science and Technology, 2003, 37(5): 899–907CrossRefGoogle Scholar
  33. 33.
    Gerecke A C, Canonica S, Muller S R, Scharer M, Schwarzenbach R. P. Quantification of dissolved natural organic matter (DOM) mediated phototransformation of phenylurea herbicides in lakes. Environmental Science and Technology, 2001, 35(19): 3915–3923CrossRefGoogle Scholar
  34. 34.
    Brezonik P L, Fulkerson-Brekken J. Nitrate-induced photolysis in natural waters: Controls on concentrations of hydroxyl radical photo-intermediates by natural scavenging agents. Environmental Science and Technology, 1998, 32(19): 3004–3010CrossRefGoogle Scholar
  35. 35.
    Polo J, Chow Y L. Efficient photolytic degradation of nitrosamine. Journal of the National Cancer Institute, 1976, 56(5): 997–1976Google Scholar
  36. 36.
    Chow Y L. Nitrosamine photochemistry: Reaction and aminium radicals. Accounts of Chemical Research, 1973, 6(10): 354–360CrossRefGoogle Scholar
  37. 37.
    Pi Y, Mathisa E, Jean-Christophe S. Effect of phosphate buffer upon CuO/Al2O3 and Cu(II) catalyzed ozonation of oxalic acid solution. Ozone Science and Engineering, 2003, 25(5): 393–397CrossRefGoogle Scholar
  38. 38.
    Buxton G V, Greenstock C L, Helman W P, Ross A. B. Critical review of rate constants of hydrate electrons, hydrogen atoms and hydroxyl radicals (·OH/·O) in aqueous solution. Journal of Physical and Chemical Reference Data, 1988, 17(2): 513–523Google Scholar

Copyright information

© Higher Education Press and Springer-Verlag GmbH 2009

Authors and Affiliations

  • Bingbing Xu
    • 1
    • 2
  • Zhonglin Chen
    • 1
  • Fei Qi
    • 3
  • Jimin Shen
    • 1
  • Fengchang Wu
    • 2
  1. 1.State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyHarbinChina
  2. 2.State Environmental Protection Key Laboratory for Lake Pollution ControlChinese Research Academy of Environmental SciencesBeijingChina
  3. 3.College of Environmental Science and EngineeringBeijing Forestry UniversityBeijingChina

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