Removal of vancomycin-resistant Enterococcus faecium photo electro-Fenton process: reaction mechanism and pathways
محل انتشار: بیستمین کنگره بین المللی میکروب شناسی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 323
نسخه کامل این مقاله ارائه نشده است و در دسترس نمی باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
MEDISM20_194
تاریخ نمایه سازی: 26 بهمن 1398
چکیده مقاله:
Introduction and Objectives: Multiresistant bacteria and antibiotic resistance genes released into wastewater. However, a large number of sufficient antibiotics used for human therapy. The rapid spread of them in the environment has become an emerging contaminant issue. Vancomycin-resistant Enterococcus faecium (VREfm) is a significant nosocomial pathogen all over the world. Therefore, it is very important to develop hospital wastewater treatment technologies for the removal of VREfm. The current study aimed to evaluate the efficiency of photo electro-Fenton (PEF) process for removing VREfm from hospital wastewater. Materials and Methods: Design of the experiment and investigate the effect of different parameters such as current density, H2O2 dosage, inter-electrode distance, UV intensity and reaction time were carried out by application of the response surface methodology (RSM). The VREfm using arabinose agar base and antibiotic discs methods were determined. Results: In the current study, the removal of VREfm was investigated using PEF process. The experimental design was carried out based on a central composite design with response surface methodology. The significance of the independent variables and their interactions are tested by means of the analysis of variance (ANOVA) with a 95% confidence level. The design results indicated that polynomial equations and response plots soundly justified the interrelationship between the dependent response and the independent variables. Kinetic studies revealed that the pseudo-first order kinetic best fitted to the experimental results of VREfm removal. Conclusion: PEF process as a promising technique was found to be an efficient approach for removal of VREfm from hospital wastewater.
کلیدواژه ها:
نویسندگان
Asieh Dokhani
Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran.
Saeid Ahmadzadeh
Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
Davood Kalantar-Neyestanaki
Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
Maryam Dolatabadi
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Babak Kheirkhah
Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran.