화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.29, No.7, 886-890, July, 2012
Inhibitory effect of 2,4-dichlorophenol on nitrogen removal in a sequencing batch reactor
E-mail:
We examined the inhibitory effect of 2,4-dichlorophenol (2,4-DCP) on nitrogen removal in the sequencing batch reactor (SBR) system. The reactor was operated with FILL, REACT (nitrification: denitrification), SETTLE, DRAW and IDLE phases in the duration ratio of 2 : 12 (9 : 3) : 1 : 1 : 8 for a 24 h cycle time. The deterioration of 2,4-DCP removal efficiency from 100 to 41% was observed when the influent concentration of 2,4-DCP was increased to 30mg/L. The residual 2,4-DCP remaining in the mixed liquor was found to inhibit the nitrification process, resulting in the decrease of nitrogen removal efficiency to 25 %. For kinetic study, the result showed that the experimental data of ammoniacal nitrogen (AN) removal at every stage fitted well to the first-order kinetics equation with high R2 values. The rate constant of AN removal, kAN, decreased with increasing influent concentration of 2,4-DCP, from 0.053 to 0.0006/min when 2,4-DCP concentration increased from 0 to 30 mg/L, respectively. However, the observed gradual recovering of AN removal with respect to the removal efficiency and kinetics during the recovery stage indicated that the inhibitory effect of 2,4-DCP on the nitrification process was reversible.
  1. Geradi MH, Nitrification and denitrification in the activated sludge process, John Wiley, New York (2002)
  2. Louzeiro NR, Mavinic DS, Oldham WK, Meisen A, Water Res., 36, 2721 (2002)
  3. Park JA, Hur JM, Son BS, Lee JH, Korean J. Chem. Eng., 18(4), 486 (2001)
  4. Umble AK, Ketchum LH, Water Sci. Technol., 35, 177 (1997)
  5. Cho MH, Lee J, Kim JH, Lim HC, Korean J. Chem. Eng., 27(3), 925 (2010)
  6. Kim DS, Jung NS, Park YS, Korean J. Chem. Eng., 25(4), 793 (2008)
  7. Irvine RL, Ketchum LH, CRC Crit. Rev. Environ. Contr., 18, 255 (1989)
  8. Arora ML, Barth EF, Umphres MB, J. Water Pollut. Contr.Fed., 57, 867 (1985)
  9. Grady CPL, Daigger GT, Lim HC, Biological wastewater treatment, 2nd Ed., Marcel Dekker, New York (1999)
  10. Hu Z, Chandran K, Grasso D, Smets BF, Water Res., 38, 3949 (2004)
  11. Kiff RJ, J. Wat. Pollut. Contr., 71, 475 (1972)
  12. Kargi F, Uygur A, Bioresour. Technol., 89(1), 89 (2003)
  13. Tchobanoglous G, Burton FL, Wastewater engineering: Treatment, disposal and reuse, 3rd Ed., Metcalf and Eddy, New York (1991)
  14. Amor L, Eiroa M, Kennes C, Veiga MC, Water Res., 39, 2915 (2005)
  15. Kargi F, Uygur A, Baskaya HS, Bioresour. Technol., 96(15), 1696 (2005)
  16. Goh CP, Seng CE, Ahmad Sujari AN, Lim PE, Environ.Technol., 30, 725 (2009)
  17. Uygur A, Kargi F, Process Biochem., 39, 2123 (2004)
  18. Nalbur BE, Alkan U, Int. Biodeterior. Biodegrad., 60, 178 (2007)
  19. Lee HC, In JH, Kim JH, Hwang KY, Lee CH, Korean J. Chem. Eng., 22(6), 882 (2005)
  20. Sahinkaya E, Dilek FB, Appl. Microbiol. Biotechnol., 59(2-3), 361 (2002)
  21. Kargi F, Eker S, Uygur A, J. Environ. Manage., 76, 191 (2005)
  22. Eker S, Kargi F, Enzyme Microb. Technol., 38(6), 860 (2006)
  23. Zhao Z, Jiang G, Jiang S, Ding F, Korean J. Chem. Eng., 26(6), 1662 (2009)
  24. Lim JW, Seng CE, Lim PE, Ng SL, Ahmad Sujari AN, Bioresour. Technol., 102, 9876 (2011)
  25. Lee ES, Park JY, Yeom SH, Yoo YJ, Korean J. Chem. Eng., 25(1), 139 (2008)
  26. Yeom SH, Kim SH, Yoo YJ, In SY, Korean J. Chem. Eng., 14(1), 37 (1997)
  27. Lim SJ, Kim EY, Ahn YH, Chang HN, Korean J. Chem. Eng., 25(1), 129 (2008)
  28. APHA, Standard methods for the examination of water and wastewater, 20th Ed., America Public Health Association, Washington,DC (1998)
  29. Chen GW, Yu HQ, Liu HX, Xu DQ, Process Biochem., 41, 1758 (2006)
  30. Sheng GP, Yu HQ, Yue ZB, Appl. Microbiol. Biotechnol., 69(2), 216 (2005)
  31. Jiang HL, Tay JH, Maszenan AM, Tay STL, Appl. Environ. Microbiol., 70, 6767 (2004)
  32. Ren S, Frymier PD, Adv. Environ. Res., 7, 537 (2003)
  33. Liu Y, Chen GH, Biotechnol. Bioeng., 55(3), 571 (1997)
  34. Russell JB, Cook GM, Microbiol. Rev., 59, 48 (1995)
  35. Ni BJ, Xie WM, Liu SG, Yu HQ, Wang YZ, Wang G, Dai XL, Water Res., 43, 751 (2009)
  36. Li AJ, Yang SF, Li XY, Gu JD, Water Res., 42, 3552 (2008)
  37. Sahinkaya E, Dilek FB, J. Environ. Manage., 83, 427 (2007)
  38. Holman JB, Wareham DG, Biochem. Eng. J., 22, 125 (2005)
  39. Yang L, Alleman JE, Water Sci. Technol., 26, 997 (1992)