화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.32, No.8, 1570-1577, August, 2015
DOI10.1007/s11814-014-0362-2  Export Citation
Activated sludge treatment by electro-Fenton process: Parameter optimization and degradation mechanism
Ali Reza Rahmani, Davood Nematollahi1, Ghasem Azarian†, Kazem Godini2, †, and Zohreh Berizi
  • Department of Environmental Health Engineering, Faculty of Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan 65178-38736, Iran
  • 1Faculty of Chemistry, Bu-Ali-Sina University, Hamadan 65178-38683, Iran
  • 2Faculty of Health, Environmental Health Engineering Department, Ilam University of Medical Sciences, Banganjab Complex, Ilam 67416-5441, Iran
E-mail:,
This study was conducted to evaluate the mineralization of activated sludge (MAS) by a facile and environmentally friendly electro-Fenton process (EFP). The effects of initial H2O2 concentration, pH value, applied current density and operating time on MAS through determining the removal rate of chemical oxygen demand (COD) and total coliform (TC) were studied. 72% of COD was removed by indirect oxidation double-mediated based on the electro-generation of hydroxyl radical and active chlorine, under the following optimum conditions: 127mmol L.1 of hydrogen peroxide, pH=3.0, 10 mA cm.2 of DC current, 120min of operating time, and 0.22mol L.1 of NaCl as the supporting electrolyte. Only in 10 min and pH 3.0 approximately 100% of TC was removed. The findings indicated that EFP can be applied efficiently for MAS by selecting appropriate operating conditions. The bottom line is that the process is entirely effective owing to the application of green oxidants (hydroxyl radical and active chlorine) and lack of being influenced by environmental situations, which can be introduced as an alternative to current conventional methods.
Keywords:Activated Sludge;Mineralization;Electro-Fenton;COD;Total Coliform
  1. Zhang GM, Zhang PY, Yang JM, Chen YM, J. Hazard. Mater., 145(3), 515 (2007)
  2. Salsabil MR, Prorot A, Casellas M, Dagot C, Chem. Eng. J., 148(2-3), 327 (2009)
  3. Tiehm A, Nickel K, Neis U, Water Sci. Technol., 36, 121 (1997)
  4. Hudson JA, Lowe P, Water Environ. J., 10, 436 (1996)
  5. Wei Y, Van Houten RT, Borger AR, Eikelboom DH, Fan Y, Water Res., 37, 4453 (2003)
  6. Nidheesh PV, Gandhimathi R, Desalination, 299, 1 (2012)
  7. Zhou M, Tan Q, Wang Q, Jiao Y, Oturan N, Oturan MA, J. Hazard. Mater., 215-216, 287 (2012)
  8. Ghosh P, Thakur LT, Samanta AN, Ray S, Korean J. Chem. Eng., 29(9), 1203 (2012)
  9. Virkutyte J, Jegatheesan V, Bioresour. Technol., 100(7), 2189 (2009)
  10. Zhu XB, Tian JP, Liu R, Chen LJ, Sep. Purif. Technol., 81(3), 444 (2011)
  11. Atmaca E, J. Hazard. Mater., 163(1), 109 (2009)
  12. Zhang H, Zhang DB, Zhou JY, J. Hazard. Mater., 135(1-3), 106 (2006)
  13. Chu YY, Qian Y, Wang WJ, Deng XL, J. Hazard. Mater., 199-200, 179 (2011)
  14. Babuponnusami A, Muthukumar K, Chem. Eng. J., 183, 1 (2011)
  15. Rosales E, Iglesias O, Pazos M, Sanroman M, J. Hazard. Mater., 213-214, 369 (2012)
  16. Ghoneim MM, El-Desoky HS, Zidan NM, Desalination, 274(1-3), 22 (2011)
  17. Guivarch E, Trevin S, Lahitte C, Oturan MA, Environ. Chem. Lett., 1, 38 (2003)
  18. Panizza M, Cerisola G, Water Res., 43, 339 (2009)
  19. Su CC, Chang AT, Bellotindos LM, Lu MC, Sep. Purif. Technol., 99, 8 (2012)
  20. Sheng Y, Zhen L, Wang X, Li N, Tong Q, J. Environ. Sci., 22, 547 (2010)
  21. Ozcan A, Sahin Y, Koparal AS, Oturan MA, J. Hazard. Mater., 153(1-2), 718 (2008)
  22. Garcia-Segura S, Garrido JA, Rodriguez RM, Cabot PL, Centellas F, Arias C, Brillas E, Water Res., 46, 2067 (2012)
  23. Ozcan A, Sahin Y, Oturan MA, Chemosphere, 73, 737 (2008)
  24. Horwitz W (Ed.), Standard Methods for the Examination of Water and Wastewater, 20th Ed., APHA, Washington, D.C. (2005).
  25. Mansour D, Fourcade F, Huguet S, Soutrel I, Bellakhal N, Dachraoui M, et al., Int. Biodeter. Biodegr., 88, 29 (2014)
  26. Basha CA, Soloman PA, Velan M, Miranda LR, Balasubramanian N, Siva R, J. Hazard. Mater., 176(1-3), 154 (2010)
  27. Azarian G, Mesdaghinia AR, Vaezi F, Nabizadeh R, Nematollahi D, Iranian J. Publ. Health, 36, 57 (2007)
  28. Godini K, Azarian G, Nematollahi D, Rahmani AR, Zolghadrnasab H, Res. J. Chem. Environ., 16, 98 (2012)
  29. Rahmani AR, Nematollahi D, Godini K, Azarian G, Sep. Purif. Technol., 107, 166 (2013)
  30. Jiang CC, Zhang JF, J. Zhejiang Univ. Sci. A., 8, 1118 (2007)
  31. Estrada AL, Li YY, Wang A, J. Hazard. Mater., 227-228, 41 (2012)
  32. Wang CT, Chou WL, Chung MH, Kuo YM, Desalination, 253(1-3), 129 (2010)
  33. Patermarakis G, Fountoukidis E, Water Res., 24, 1491 (1990)
  34. Barrera-Diaz C, Roa-Morales G, Avila-Cordoba L, Pavon-Silva T, Bilyeu B, Ind. Eng. Chem. Res., 45(1), 34 (2006)
  35. Linares-Hernandez I, Barrera-Diaz C, Bilyeu B, Juarez-GarciaRojas P, Campos-Medina E, J. Hazard. Mater., 175(1-3), 688 (2010)
  36. Barrera-Diaz C, Urena-Nunez F, Campos E, Palomar-Pardave M, Romero-Romo M, Radiat. Phys. Chem., 67, 657 (2003)
  37. Anotai J, Lu MC, Chewpreecha P, Water Res., 40, 1841 (2006)
  38. Curteanu S, Piuleac CG, Godini K, Azaryan G, Chem. Eng. J., 172(1), 267 (2011)