Degradation of a basic textile dye by inactivated calcium peroxide

Balci B., Erkurt F. E., Budak F., Zaimoğlu B. Z., Başibüyük M., Yeşiltaş H. K.

DESALINATION AND WATER TREATMENT, cilt.258, ss.111-122, 2022 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 258
  • Basım Tarihi: 2022
  • Doi Numarası: 10.5004/dwt.2022.28419
  • Dergi Adı: DESALINATION AND WATER TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Environment Index, Geobase, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.111-122
  • Çukurova Üniversitesi Adresli: Evet

Özet

Calcium peroxide (CaO2) is an environmentally friendly oxidant and can be used to decolorize textile wastewater. In this study, CaO2 was used directly without any activator to degrade Basic blue 41 (BB41) from simulated textile wastewater (STW), including auxiliary production chemicals. The characterization of the synthesized CaO2 was investigated by scanning electron microscopy, energy-dispersive X-ray, X-ray diffraction and Fourier-transform infrared spectroscopy analyses. The optimum pH was found to be 7 for the degradation of the BB41. Thermodynamic studies showed that the degradation of the BB41 by CaO2 is endothermic and spontaneous. The activation energy for the oxidation reaction was found 52.954 kJ mol(-1). 0.4 g CaO2 was found to be sufficient for the removal of BB41 with 99.6% removal efficiency. The experiments showed that the CaO2 can effectively oxidize organic-based auxiliary chemicals in STW. Over 80% chemical oxygen demand removal efficiency from STW was obtained with 2.0 g CaO2. The study results showed that CaO2 can be used as an effective and environmentally friendly oxidant for the decolorization of the textile wastewater.