Removal of chloride, sulphate, TOC and COD from aqueous solution by vacuum distillation

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Guneysu S., Aydın Ş. B.

DESALINATION AND WATER TREATMENT, cilt.93, ss.195-199, 2017 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 93
  • Basım Tarihi: 2017
  • Doi Numarası: 10.5004/dwt.2017.21012
  • Dergi Adı: DESALINATION AND WATER TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.195-199
  • Anahtar Kelimeler: Vacuum evaporation, Water recovery, Desalination, TOC, SEAWATER DESALINATION PROCESS, WASTE-WATER TREATMENT, MEMBRANE DISTILLATION, PURIFICATION, OSMOSIS, SYSTEM
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

In this study, treatment of strong wastewater that cannot be treated economically with conventional methods was investigated using vacuum distillation method. Low evaporation temperatures (50-60 degrees C) and low vacuum pressures (30, 40, 60 and 70 kPa) were selected as experimental conditions. The evaporation studies were carried out at 60 degrees C in seawater, while the salinity reduction was investigated under a vacuum of 30-70 kPa and a removal rate of up to 90% was achieved. In a study, on chemical industry wastewater, carried out at 60 degrees C temperature and under a vacuum of 50, 60 and 70 kPa experimental conditions was achieved that COD parameter reduced from 18,800 mg/L to 500 mg/L in 180 min. Albeit COD removal was based on the experiments, parameters such as TOC, pH, sulphate and distillate amount were also resolute.