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Evaluation of the Efficiency of photocatalytic UV/ peroxymonosulfate process in the removal of cefexime antibiotic from aqueous solutions
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Roghayeh Khazaei1    , Akireza Rahmani2 , Abdolmotaleb Seidmohammadi3 , Javad Faradmal4 , Mostafa Leili5 |
1- MSc Student of Environmental Health Engineering, Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
2- Professor of Environmental Health Engineering, Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan.
3- Associate Professor of Environmental Health Engineering, Department of Environmental Health Engineering and Social Determinants of Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
4- Associate Professor of Biostatistics and Epidemiology, Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
5- Associate Professor of Environmental Health Engineering, Department of Environmental Health Engineering, School of Public Health and Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran , mostafa.leili@gmail.com |
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Abstract: (3645 Views) |
Background and Aim: Pharmaceuticals, especially antibiotics, are new contaminants that because of their cumulative nature, adverse effects and drug resistance; have created a major environmental concern. The aim of this study was to evaluate UV/peroxymonosulfate (UV/PMS) process efficiency in the removal of cefexime antibiotic from aqueous solution.
Materials and Methods: This experimental laboratory study was conducted in batch mode. We assessed the effects of main operational parameters such as solution pH (3-9), reaction time (0-30 min), photocatalyst dosage (0.75-2.25 mmol/L), and initial concentration of cefexime (5-25 mg/L) on removal efficiency. Spectrophotometer (HACH DR-5000 UV–Vis) was used to measure the initial and final concentrations of cefexime.
Results: Under optimal condition (pH=7.5, irradiation time=30 min, C0=5 mg/L, and PMS dosage=1.37 mmol/L), use of photocatalytic UV/peroxymonosulfate led to efficient removal of cefexime (93.18%).
Conclusion: The results of this study showed the acceptable performance of peroxymonosulfate process in the removal of cefexime. |
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| Keywords: Advanced oxidation pocesses (AOPS), Peroxymonisulfate, Cefexime, Ultraviolet
radiation (UV) |
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Full-Text [PDF 2707 kb]
(2161 Downloads)
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Type of Study: Original Research |
Subject:
General
Received: 2019/03/17 | Accepted: 2019/07/7 | Published: 2019/10/2
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