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Journal of Advances in Environmental Health Research، جلد ۱۲، شماره ۲، صفحات ۷۳-۷۹
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عنوان انگلیسی Moving Bed Sequenced Batch Reactor System in Tetracycline Antibiotic Removal from Real Hospital Wastewater
چکیده انگلیسی مقاله Background: Water contamination by synthetic organic chemicals like antibiotics is a major environmental issue. Tetracycline (TC), an antibiotic in a wide family, is notable. A moving bed sequenced batch reactor (MBSBR) is tested for treating hospital raw wastewater containing TC.
Methods: A 35-L pilot system was constructed, with 30 L usable. PVC suspended carriers (Kaldnes K3) with 584.3 m2/m3 specific surface area made about 70% of the functional volume. The independent variables in this study were hydraulic retention duration (1, 1.5, 2, and 2.5 hours) and starting TC concentration (5, 10, and 15 mg/L).
Results: The findings of the study demonstrated satisfactory performance under the conditions of an initial TC concentration of 5 mg/L and an organic load of 350 mg/L. The overall removal efficiencies for TC, chemical oxygen demand (COD), and biological oxygen demand (BOD5) were 72.8%, 83%, and 93.9%, respectively. The optimal performance of the system was primarily observed during the initial phase, characterized by a TC concentration of 5 mg/L and a hydraulic retention time (HRT) of 2.5 hours. The experimental results also indicated that the maximum removal efficiency was 1.8 kg COD/m2.day, as determined by a fitted surface loading rate (SLR). Furthermore, the food-tomicroorganism (F/M) ratio decreased from 0.101 to 0.038 as the HRT increased from 1 to 2.5 hours.
Conclusion: The results of the study indicate that the MBSBR exhibits a high level of efficiency in removing TC from hospital wastewater.
کلیدواژه‌های انگلیسی مقاله Moving Bed Sequenced Batch Reactor,hospital wastewater,Tetracycline
نویسندگان مقاله Roya Mafigholami |
Department of Environment, West Tehran Branch, Islamic Azad University, Tehran, Iran

Jamal Mehralipour |
Student Research Committee, Iran University of Medical Sciences, Tehran, Iran

Mona Hosseini |
Student Research Committee and Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran

Majid Jahanshiri |
Department of Environment, West Tehran Branch, Islamic Azad University, Tehran, Iran

نشانی اینترنتی https://jaehr.muk.ac.ir/article_179878_9f073766289f6381982483422f40e405.pdf
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