상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제21권1호
  • /
  • Pages.13-25
  • /
  • 2007
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

한강수계 고도정수처리 공정에서의 유기물과 맛·냄새의 제거특성

Removal Characteristics of Natural Organic Matter and Taste and Odor by Advanced Water Treatment Process around the Han River Water Supply System

  • 임재림 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 이경혁 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 김성수 (한국수자원공사 수자원연구원 상하수도연구소) ;
  • 채선하 (한국수자원공사 수자원연구원 상하수도연구소)
  • 투고 : 2006.09.14
  • 심사 : 2007.02.12
  • 발행 : 2007.02.15
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초록

The water treatment plants in Seoul Metropolitan Area, which are under Korea Water Resources Corporation(KOWACO)'s management, take water from Paldang Reservoir in Han River System for drinking water supply. There are taste and odor (T&O) problems in the finished water because the conventional treatment processes do not effectively remove the T&O compounds. As part of countermeasures for taste and odor control, KOWACO is planning to introduce advanced water treatment process such as ozone and GAC in near future. This study evaluated the removal characteristics of T&O and dissolved organic matter (DOM) to find design and operation parameters of advanced water treatment processes in a pilot-scale treatment plant. The GAC adsorption capacity for DOC in the two GAC system (GAC and $O_3$-GAC) at an EBCT of 14min was mostly exhausted after 9months. The differency of the removal efficiency of DOC between $O_3$-GAC and GAC increased with increasing operation time because the bioactivity in $O_3$-GAC process was enhanced by post-ozone process. Removal by conventional treatment was unable to reach the target TON(threshold odor number) of 3 but GAC systems at an EBCT(empty bed contact time) of 14 min were able to archive the target with few exception. During the high T&O episodes, PAC as a pretreatment together with GAC could be useful option for T&O control. However, substantial TON removal continued for more than two year (> 90,000 bed volumes). At the spiking of less concentration 26 to 61 ng/L in the influent of GAC systems, GAC absorber and $O_3$-GAC processes could meet the treatment target. The better spike control after 12 and 19 months of operation compared to that after 7 months of operation is a strong indication of biological control. The results presented in this study had shown that $O_3$-GAC process was found to be more effective for T&O control than GAC process. And the main removal mechanism in GAC systems were adsorption capacity and biodegradation.

키워드

참고문헌

  1. 김경숙, 오병수, 조우현, 강준원 (2004) 정수처리시스템에서 유기물 제거효율 향상을 위한 오존과 활성탄 공정의 영향, 대한환경공학회지, 26 (10), pp.1101-1108
  2. 노재순, 손희종, 박은주, 황영도, 신판세, 강임석, 주기재 (2002) 고도정수처리 공정에서의 천연유기물질 특성 변화 및 소독부산물 전구물질의 제거특성 평가, 대한환경공학회지, 24 (12), pp.2075-2087
  3. 손희종, 정철우, 강임석 (2004) 상수원수중의 천연유기 물질 특성과 염소 소독부산물 생성의 관계, 대한환경공학회지, 26(4), pp.457-466
  4. 이만호, 조우현, 이희천, 전완규, 김형선, 이규성 (2001) 고도정수처리 조합공정별 유기물질의 제거효율 평가, 한국물환경학회 . 대한장하수도학회 공동춘계학술발표회 논문집, 광주시 지방공무원교육원, pp. 155 - 159
  5. 채선하, 이경혁, 임재림, 김성수, 왕창근, 안효원 (2004) 수원에 따른 용존유기물질의 생성특성과 계절적 변화, 대한환경공학회지, 26(11), pp.1244-1250
  6. Anselme, C., Suffet, I.H., Mallevialle, J. (1988) Effects of ozonation on tastes and odors, J. AWWA, 80(10), pp. 45-51 https://doi.org/10.1002/j.1551-8833.1988.tb03123.x
  7. APHA, AWWA, and WEF (2005) Standard Methods for the Examination of Water and Wastewater, 21st ed., American Public Health Association, Washington, D.C.
  8. Chen, G., Dussert, B.W., Suffet, I.H., (1997) Evaluation of granular activated carbons for removal of methylisobomeol to below odor threshold concentration in drinking water, Water Research, 31(5), pp. 1155-1163 https://doi.org/10.1016/S0043-1354(96)00362-4
  9. Hargesheimer, E.E. and Watson, S.B., (1996) Drinking water treatment options for taste and odor control, Water Research, 30(6), pp. 1423-1430 https://doi.org/10.1016/0043-1354(96)00027-9
  10. Hattori, K. (1988) Pilot scale studies of geosmin and 2-methylidoborneol removal, Water Sci. & Technol., 20, pp. 229-236
  11. Herzing, D.R., V.L.Snoeyink, and N.F. Wood (1977) Activated carbon adsorption of the odorous compounds 2-methyllisoborneol and geosmin, J. AWWA, 69(4), pp. 223-226 https://doi.org/10.1002/j.1551-8833.1977.tb06721.x
  12. Karanfil, T., Schlautman, M.A., and Erdogan, I. (2002) Survey of DOC and UV measurement practices with implications for SUVA determination, J. AWWA, 94(12), pp. 68-80 https://doi.org/10.1002/j.1551-8833.2002.tb10250.x
  13. Kim, W.H., Nishijima, W, Shoto, E., and Okada, M. (1997) Pilot plant study on ozonation and biological activated carbon process far drinking water treatment, Water Sci. & Techno., 35(8), pp. 21-28
  14. LeChevallier, M.W, Welch, N.J., and Smith, D.B. (1996) Full-scale studies of factors related to coliform regrowth in drinking water, App. Environ. Microbiol., 62(7), pp. 2201-2211
  15. Mcguire, M.J., Krasne,r S.W., Hwang, C.J. and Izaguirre, G. (1981) Closed-loop stripping analysis as a tool for solving taste and odor problems, J. AWWA, 73(10), pp. 530-537 https://doi.org/10.1002/j.1551-8833.1981.tb04784.x
  16. Minear, R.A. and Amy, G.L. (2000) Disinfection by-products in water treatment; the chemistry of their formation and control, Lewis publishers, New York
  17. Owen, D.M., Chowdhury, Z.K., Summers, R.S., Hooper, S.M., Solarik, G., and Gary, K. (1998) Removal of DBP precursors by GAC adsroption, J. AWWA, 94(12), pp. 81-95
  18. Simpson, M.R and MacLeod, B.W, (1991) Comparison of various powdered activated carbons for the removal of geosmin and 2-methylisoborneol in selected water conditions, hoc. Am, Water Works Assoc. Ann., Philadelphia, PA
  19. Stevenson, F.J. (1994) Reactive functional groups, Humus Chemistry: Genesis, composition, reaction, John Wiley & Sons, INC., New York, NY, pp. 212-235
  20. Taylor W.D., Losee, R.F., Torobin, M., Izaguirre, G., Sass, D., and Khiari, D. (2005) Early warning and management of surface water taste-and-odor event, Published by AwwaRF, AWWA, IWA
  21. Watson, S.B., Brownlee, B., Satchwill, T. and Hargesheimer, E.E. (2000) Quantitative analysis of trace levels of Geosmin and MIB in source and drinking water using headspace SPME, Water Research, 34(10), pp, 2818-2828 https://doi.org/10.1016/S0043-1354(00)00027-0
  22. Weishaar J,L., Aiken G.R., Bergamaschi B.A., Fram M,S., Fujii R., Mopper K. (2003) Evaluation of specific ultraviolet absorbance as an indicator of the chemical composition and reactivity of dissolved organic carbon, Environ Sci Technol., 37(20), pp. 4702-4708 https://doi.org/10.1021/es030360x
  23. White, M,C., Thompson, J,D., Harrington, G.W., and Singer, P.C. (1997) Evaluating criteria for enhanced coagulation compliance,). AWWA, 89(50), pp, 64-77 https://doi.org/10.1002/j.1551-8833.1997.tb08228.x
  24. Yavich A.A., Lee K.H., Chen K.C., Pape L., Masten S.J. (2004) Evaluation of biodegradability of NOM after ozonation, Water Res., 38(12), pp. 2839-2846 https://doi.org/10.1016/j.watres.2004.03.040
  25. Zimmerman, L.A., Ziegler, A.C. and Thurman, E.M. (2002) Method of analysis and quality-assurance practices by U.S. geological survay organic geochemistry research group Determination of geosmin and methylisoborneol in water using solid-phase microextraction and gas chromatography/ Mass spectrometry, U,S. Geological Survey Open-File Report 02-337, pp, 1-12