DOI QR코드

DOI QR Code

Change of Molecular Weight of Organic Matters through Unit Water Treatment Process and Associated Chlorination Byproducts Formation

  • Sohn, Jin-Sik (Kookmin University, Department of Civil and Environmental Engineering) ;
  • Kang, Hyo-Soon (Kookmin University, Department of Civil and Environmental Engineering) ;
  • Han, Ji-Hee (Kookmin University, Department of Civil and Environmental Engineering) ;
  • Yoon, Yeo-Min (CH2M HILL Korea)
  • 발행 : 2007.12.31

초록

The objectives of this study were to evaluate the change of molecular weight (MW) profiles in natural organic matter (NOM) through various treatment processes (coagulation, granular activated carbon (GAC), and ozonation) using high performance size exclusion chromatography based on ultraviolet absorbance and dissolved organic detection (HPSEC-UVA-DOC). In addition, relationships between MW profiles and disinfection by-production (DBP) formation were evaluated. Each treatment process results in significant different effects on NOM profiles. Coagulation is effective to remove high molecular weight NOM, while GAC is effective to remove low molecular weight NOM. Ozonation removes only a small portion of NOM, while it induces a significant reduction of UV absorbance due to breakdown of the aromatic groups. All treated waters are chlorinated, and chlorination DBPs such as trihalomethanes (THMs) and haloacetic acids (HAAs) are measured under formation potential conditions. Both THM and HAA formation potentials were significantly reduced through the coagulation process. GAC was more effective to reduce THM formation compared to HAA formation reduction, while ozonation showed significant HAA reduction compared to THM reduction.

키워드

참고문헌

  1. Thurman, E. M., 'Organic Geochemistry of Natural Waters,' Martinus Nijhoff/Dr W. Junk Publishers, Dordrecht (1985)
  2. Rook, J. J., 'Formation of haloforms during chlorination of natural waters,' Water Treatment Examination, 23, 234-243 (1974)
  3. Rook, J. J., 'Chlorination reactions of fulvic acids in natural waters,' Environmental Science and Technology, 11, 478-482 (1977) https://doi.org/10.1021/es60128a014
  4. Reckhow, D. A., and Singer, P. C., 'Chlorination by-products in drinking waters - from formation potentials to finished water concentrations,' J. American Water Works Association, 82, 173-180 (1990) https://doi.org/10.1002/j.1551-8833.1990.tb06949.x
  5. Haas, C. N., Jacangelo, J. G., Bishop, M. M., Cameron, C. D., Chowdhury, Z. K., and Connell, G. F., 'Survey of water utility disinfection practices,' Journal American Water Works Association, 84, 121-128 (1992) https://doi.org/10.1002/j.1551-8833.1992.tb07434.x
  6. Owen, D. M., Amy, G. L., Chowdhury, Z. K., Paode, R., McCoy, G., and Viscosil, K., 'NOM - characterization and treatability,' J. American Water Works Association, 87, 46-63 (1995)
  7. Clark, R. M., Thurnau, R. C., Sivaganesan, M., and Ringhand, P., 'Predicting the formation of chlorinated and brominated by-products,' Journal of Environmental Engineering-ASCE, 127, 493-501 (2001) https://doi.org/10.1061/(ASCE)0733-9372(2001)127:6(493)
  8. Lekkas, T. D., and Nikolaou, A. D., 'Development of predictive models for the formation of trihalomethanes and haloacetic acids during chlorination of bromide-rich water,' Water Quality Research Journal of Canada, 39, 149-159 (2004) https://doi.org/10.2166/wqrj.2004.022
  9. Chin, Y., Aiken, G., and O'Loughlin, E., 'Molecular weight, polydispersity, and spectroscopic properties of aquatic humic substances,' Environmental Science and Technology, 28, 1853-1858 (1994) https://doi.org/10.1021/es00060a015
  10. Her, N., Amy, G., Cho, J., Yoon, Y., and Kosenka, P., 'NOM Characterization by HPLC-Size Exclusion Chromatography (SEC) with UV and On-line TOC Detection,' Proc. AWWA, Tempa, FL (1999)
  11. Her, N., Amy, G., Foss, D., Cho, J., Yoon, Y., and Kosenka, P., 'Optimization of method for detecting and characterizing NOM by HPLC-size exclusion chromatography with UV and on-line DOC detection,' Environmental Science and Technology, 36, 1069-1076 (2002) https://doi.org/10.1021/es015505j
  12. Her, N., Amy, G., McKnight, D., Sohn, J., and Yoon, Y., 'Characterization of DOM as a function of MW by fluorescence EEM and HPLC-SEC using UVA, DOC, and fluorescence detection,' Water Research, 37, 4295-4303 (2003) https://doi.org/10.1016/S0043-1354(03)00317-8
  13. Allpike, B., Heitz, A., Joll, C., Kagi, R., Abbt-Braun, G., Frimmel, F., Brinkmann, T., Her, N., and Amy, G., 'Size exclusion chromatography to characterize DOC removal in drinking water treatment,' Environmental Science and Technology, 39, 2334-2342 (2005) https://doi.org/10.1021/es0496468
  14. Owen, D.M., Amy, G., and Chowdhury, Z., 'Characterization of natural organic matter and its relationship to treatability,' AWWARF Report, Denver, CO (1993)
  15. Sinha, S., Amy, G., and Sohn, J., 'Reactivity of NOM in forming chlorinated DBPs,' Proc. AWWA, Atlanta (1997)
  16. Reckhow, D. A., and Singer, P. C., Mechanism of Organic Halide Formation During Fulvic Acid Chlorination and Implication with respect to Preozoantion, In Water Chlorination: Environmental Impact and Health Effects, Vol. 5, Lewis Publ., Chelsea, Mich., pp.1229-1257 (1985)
  17. Collins, M. R., Amy, G., and Steelink, C., 'Molecular weight distribution, carboxylic acidity and humic substances content of aquatic organic matter implications for removal during water treatment,' Environmental Science and Technology, 20, 1028-1033 (1986) https://doi.org/10.1021/es00152a011
  18. Owen, D. M., Chowdhury, Z. K., Summers, R. S., Hooper, S. M., Solarik, G., and Gray, K., 'Removal of DBP precursors by GAC adsorption,' AWWARF Report, Denver, CO (1998)
  19. Reckhow, D. A., and Singer, P. C., 'The removal of organic halide precursors by preozonation and alum coagulation,' J. American Water Works Association, 76, 151-157 (1984) https://doi.org/10.1002/j.1551-8833.1984.tb05317.x
  20. Shukairy, H. M., Miltner, R. J., and Summers, R. S., 'Bromide's Effect on DBP Formation, Speciation, and Control: Part 1, Ozonation,' JAWWA, 86-72 (1994)
  21. Miltner, R. J., Shukairy, H. M., and Summers, R. S., 'Disinfection by-product formation and control by ozonation and biotreatment,' J. American Water Works Association, 84, 53-62 (1992)

피인용 문헌

  1. Behavior of Organic Matter, Chlorine Residual and Disinfection By-Products (DBPs) Formation during UV Treatment of Wastewater Treatment Plant Effluents vol.28, pp.1, 2014, https://doi.org/10.11001/jksww.2014.28.1.61
  2. Seasonal variation of assimilable organic carbon and its impact to the biostability of drinking water vol.24, pp.3, 2018, https://doi.org/10.4491/eer.2018.299