Ultrasound and heterogeneous photocatalysis for the treatment of vinasse from pisco production

Poblete R., Cortes E., SALİHOĞLU G., SALİHOĞLU N. K.

ULTRASONICS SONOCHEMISTRY, cilt.61, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.ultsonch.2019.104825
  • Dergi Adı: ULTRASONICS SONOCHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, Computer & Applied Sciences, EMBASE, INSPEC, MEDLINE
  • Anahtar Kelimeler: Vinasse, Pisco, Ultrasound, Heterogeneous photocatalysis, ADVANCED OXIDATION PROCESSES, WASTE-WATER, AROMATIC ALCOHOLS, ACTIVATED CARBON, COLOR REMOVAL, DEGRADATION, PHOTOLYSIS, UV
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Production of the distilled alcohol pisco results in vinasse, dark brown wastewater with high polyphenols contents and chemical oxygen demand (COD). No prior research exists on the efficiency of advanced oxidations processes (AOPs) in treating pisco vinasse. Therefore, the purpose of this study was to assess the efficiency of ultraviolet (UV), ultrasound (US), US + UV, heterogeneous photocatalysis (HP), and HP + US treatments. Polyphenols, COD, and color removal, as well as oxidation-reduction potential, were monitored over a 60-minute treatment period. Energy consumption levels and synergies were also calculated. The HP + US treatment achieved the best removal ratios for polyphenols (68%), COD (70%), and color (48%). While the HP treatment was the second most efficient in terms of polyphenols (62%), COD (58%), and color (40%) removal, this AOP comparatively required the least amount of energy. Considering the energy efficiency and relatively high pollutant-removal rates of the HP treatment, this AOP is recommended as a practical alternative for treating pisco vinasse.