نوع مقاله : مقالات پژوهشی
نویسندگان
- پژمان قیطاسیان 1
- سید محمد طباطبایی 2
- احمد جنیدی جعفری 3
- محسن فرهادی 4
- جواد گلشنی اصل 5
- بهزاد ولی زاده 6
- مریم مصرقانی 7
1 کارشناسی ارشد، گروه مهندسی بهداشت محیط، معاونت بهداشت دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران، تهران، ایران.
2 استادیار، گروه طب ورزش دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران، تهران، ایران.
3 استاد، گروه مهندسی بهداشت محیط، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران، تهران، ایران.
4 کارشناسی ارشد، گروه سلامت محیط و کار ، وزارت بهداشت و درمان آموزش پزشکی، تهران، ایران.
5 دکترا، گروه مهندسی بهداشت محیط، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران، تهران، ایران.
6 رییس دبیرخانه ستاد کشوری کنترل دخانیات وزارت بهداشت، درمان و آموزش پزشکی ایران.
7 دکترا، گروه مهندسی بهداشت محیط، معاونت بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی ایران، تهران، ایران.
چکیده
زمینه و هدف : تتراسایکلین را می توان یکی از متداول ترین آنتی بیوتیک ها از نظر تولید و مصرف درسراسر جهان برشمرد و به شکل گسترده در پزشکی و دامپزشکی به منظور پیشگیری و درمان بیماری های عفونی مورد مصرف قرار می گیرد. هدف از این مطالعه بررسی کارایی فرایند ترکیبی الکتروپرسولفات با استفاده همزمان واکنش گر پرکسیدهیدروژن در حذف آنتی بیوتیک تتراسایکلین از محیط آبی است.
مواد و روش ها : این پژوهش به صورت ناپیوسته در مقیاس آزمایشگاهی و با استفاده از راکتور الکتروپرسولفات و واکنش گر پرکسیدهیدروژن در دمای محیط انجام شد. در این پژوهش از متدولوژی سطح پاسخ (RSM) بر پایه central composite design (CCD) برای بهینه سازی متغیر فرآیند الکتروپرسولفات و واکنشگر پرکسیدهیدروژن و تاثیر متغییرهای pH، دانستیه جریان، نسبت پرسولفات به پرکسیدهیدروژن بر حذف تتراسایکلین مورد مطالعه قرار گرفت.
یافته ها: حداکثرکارایی حذف تتراسایکلین در فرایند الکتروپرسولفات و استفاده همزمان واکنش گر پرکسیدهیدروژن برابر 95/2 % تحت شرایط 6/5 : pH ، شدت جریان 31 میلی آمپر، نسبت پرسولفات به پرکسید هیدروژن 1/1 بدست آمد. p-value بسیار پایین (0/0001>P) و ضریب همبستگی بالا (R2) برای مدل به دست آمده نشان دهنده کفایت و همبستگی بالای داده های تجربی و داده های پیش بینی شده توسط مدل است.
نتیجه گیری: تکنولوژی ترکیبی سازگار با محیط زیست اکسیداسیون پیشرفته مبتنی بر رادیکال سولفات و پرکسیدهیدروژن (EC/PS/HR) برای حذف آلاینده های مقاوم در محیط های آبی متاثر از عوامل مختلفی مانند غلظت فعال کننده (H2O2)، غلظت کاتالیست (پرسولفات) و pH فرایند است. این مطالعه نشان داد که فرایند ترکیبی (EC/PS/HR) قادر به تجزیه و تخریب آلاینده های مقاوم مانند تتراسایکلین از محیط های آبی است. در نهایت می توان گفت که فرایند پرسولفات فعال شده با استفاده از (H2O2) یک فرایند موثر، کارآمد و امیدوارکننده در حذف تتراسایکلین از محلول های آبی است.
کلیدواژه‌ها
عنوان مقاله [English]
Survey of Electropersulfate/H2O2 Efficiency for Treatment Synthetic Wastewater Containing Tetracycline using Response Surface Methology (RSM)
نویسندگان [English]
- Pezhman Gheitasian 1
- Seyed Mohammad Tabatabaee jabali 2
- Ahmad Jonidi Jafari 3
- Mohsen Farhadi 4
- Javad Golshani asl 5
- Behzad Valizadeh 6
- Maryam Meserghani 7
1 Department of Environmental Health Engineering, Deputy of Health, Iran University of Medical Sciences, Tehran, Iran
2 Associate Professor, Department of sports medicine school of medicine, Iran University of medical sciences, Tehran, Iran.
3 Professor ,Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
4 Department of Environmental Health Engineering, Deputy of Health, Iran University of Medical Sciences, Tehran, Iran.
5 Department of Environmental Health Engineering, Deputy of Health, Iran University of Medical Sciences, Tehran, Iran.
6 Head of the National Tobacco Control Secretariat, Ministry of Health and Medical Education.
7 Department of Environmental Health Engineering, Deputy of Health, Iran University of Medical Sciences, Tehran, Iran.
چکیده [English]
Background and Purpose: Tetracycline represents the most prevalent antibiotic group in production and utilization and is extensively employed for the prophylaxis and treatment of infectious diseases in both human and veterinary medicine. The primary objective of this investigation was to assess the efficacy of electro-activated persulfate (EC/PS/HR) for eliminating tetracycline from aqueous solutions.
Materials and Methods: This study was conducted in a batch mode utilizing an electro-activated persulfate (EC/PS/HR) system. All experiments were carried out under constant temperature conditions. Response surface methodology (RSM) in conjunction with a central composite design (CCD) was employed to optimize the variables associated with the electro-activated persulfate and hydrogen peroxide process, including pH, current density, and the persulfate/hydrogen peroxide molar ratio, with the aim of tetracycline removal. Data analysis in this study was performed using Data Designer 8.0.6 software.
Results: The results of this study revealed the use of a quadratic model to predict the impact of independent variables on the efficiency of tetracycline removal in the process. The exceedingly low (p <0.0001) and the high correlation coefficient (R2) of the obtained model signify a robust correlation between experimental and predicted data. The optimal conditions for achieving maximum efficiency in the degradation of tetracycline through electro-activated persulfate were determined to be a pH of 5.6, a persulfate/hydrogen peroxide molar ratio of 1.1, and a current density of 31 mA. Under these conditions, tetracycline degradation reached approximately 95.2%.
Conclusion: Based on the findings of this investigation, it can be deduced that the advanced oxidation process relying on electro-activated persulfate (EC/PS/HR) is capable of eliminating contaminants in aqueous environments, influenced by various factors such as hydrogen peroxide dosage, catalyst concentration (persulfate), and pH. The study highlights the capability of the electro-activated persulfate (EC/PS/HR) hybrid process to decompose recalcitrant pollutants like tetracycline from aqueous environments. Overall, the electro-activated persulfate process demonstrates promise for the degradation of tetracycline in aqueous solutions.
کلیدواژه‌ها [English]
- Advanced oxidation processes
- Wastewater treatment
- Tetracycline
- Response surface methodology
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