Treatment of landfill leachate by using electro-Fenton method


Atmaca E.

JOURNAL OF HAZARDOUS MATERIALS, cilt.163, sa.1, ss.109-114, 2009 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 163 Sayı: 1
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jhazmat.2008.06.067
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.109-114
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, the effects of various operating conditions such as treatment time, DC current, initial pH, initial H2O2 concentration and distance between the electrodes on treatability of landfill leachate by using electro-Fenton (EF) method were examined. The settling characteristics of waste sludge produced from the treatment were also determined. According to the results, EF method can be used efficiently for the treatment of landfill leachate by using the proper operating conditions. The best removal efficiencies were obtained when: treatment duration is 20 min, constant DC current value is 3A, H2O2 concentration is 2000 mg L-1 and the initial pH value is 3. For these conditions, 72% COD, 90% color, 87% PO4-P and 28% NH4-N removals were obtained. It was also observed that using electrode distance between 1.8 cm and 2.8 cm increases efficiency of the COD removal, significantly. Sedimentation characteristics of the waste sludge produced from the EF method is fairly good. (C) 2008 Elsevier B.V. All rights reserved.