Subcritical water oxidation of 6-aminopenicillanic acid and cloxacillin using H2O2, K2S2O8, and O-2

Yabalak E., DÖNDAŞ H. A., Gizir A. M.

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, cilt.52, sa.3, ss.210-220, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 3
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1080/10934529.2016.1246935
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.210-220
  • Anahtar Kelimeler: ANOVA, degradation, nano ZnO, response surface methodology, total organic carbon removal, RESPONSE-SURFACE METHODOLOGY, BOX-BEHNKEN DESIGN, BETA-LACTAM ANTIBIOTICS, WET PEROXIDE OXIDATION, SUPERCRITICAL WATER, PROCESS PARAMETERS, AQUEOUS-SOLUTION, AIR OXIDATION, DEGRADATION, REMOVAL
  • Çukurova Üniversitesi Adresli: Hayır

Özet

This study was undertaken to investigate the degradation of 6-aminopenicillanic acid (6-APA) and cloxacillin in aqueous solution by the combined effect of subcritical water and the oxidising agents O-2, H2O2, and K2S2O8. Nano ZnO was used as a solid catalyst. Response surface methodology was used to determine the optimum experimental parameters (temperature, treatment time, and concentration of oxidising agent). For 6-APA, the maximum organic carbon (TOC) removal rates of 83.54%, 81.11% and 42.42% were obtained using H2O2, K2S2O8, and O-2, respectively. For cloxacillin, the maximum TOC removal rates of 67.69%, 76.02% and 14.45% were obtained using H2O2, K2S2O8, and O-2, respectively. Additionally, the impact of nano and commercial ZnO on TOC removal rates was determined. Secondary ions produced during the degradation processsuch as nitrite, nitrate, sulphate and chloridewere determined using ion chromatography.