Reaction kinetics on treatment of food industry wastewaters by electrochemical oxidation


Gueven G., PERENDECİ N. A., Tanyolac A.

DESALINATION AND WATER TREATMENT, cilt.52, sa.37-39, ss.7092-7100, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 37-39
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/19443994.2013.827780
  • Dergi Adı: DESALINATION AND WATER TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.7092-7100
  • Anahtar Kelimeler: Electrochemical wastewater treatment, Reaction kinetics, Deproteinated whey wastewater, Fruit juice factory wastewater, WASTE-WATER TREATMENT, DEGRADATION, ELECTRODES, OPTIMIZATION, REMOVAL, PHENOL
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Reaction kinetics during electrochemical treatment of deproteinated whey wastewater (DWW) and fruit juice factory wastewater (FJW) was investigated in a stirred batch electrochemical reactor under reaction conditions of 100% wastewater concentration and 11.29 V applied voltage at room temperature using cost-effective iron electrodes. Reaction mediums for electrochemical treatment of DWW and FJW were supplemented with 19.87 and 5.95 g L-1 NaCl as supporting electrolyte, respectively. Kinetic investigations denoted that reaction orders (n) of both reactions were 0.6. Specific reaction rate constants (k) at 25 degrees C of electrochemical DWW and FJW treatment reactions were 0.04 and 1.21 mg(0.6) L-0.6 min(-1). Activation energies (E-a) and Arrhenius constants (A) were calculated as 41.60-9.59 kJ mol(-1) and 740.93-61.82 mg(0.6) L-06 min(-1) for DWW and FJW, respectively. In our study, relatively fast reaction kinetics values were obtained compared to the data previously reported for electrochemical wastewater treatment in the literature. These results support the applicability of electrochemical treatment to the deproteinated whey and fruit juice factory wastewaters as an advanced post-treatment method providing further research.