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Iranian Journal of Biotechnology، جلد ۱۴، شماره ۴، صفحات ۲۲۱-۲۲۹
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عنوان انگلیسی Removal of Pharmaceutical Products in a Constructed Wetland
چکیده انگلیسی مقاله Background: There is growing interest in the natural and constructed wetlands for wastewater treatment. While nutrient removal in wetlands has been extensively investigated, information regarding the degradation of the pharmaceuticals and personal care products (PPCPs) has only recently been emerging. PPCPs are widely distributed in urban wastewaters and can be removed to some extent by the constructed wetlands. The medium-term (3-5 years) behavior of these systems regarding PPCP removal is still unknown.Objectives: The efficiency of a Leca-based laboratory-scale constructed wetland planted with Phragmites australis (Cav.) Trin. Ex. Steudel in treating an aqueous solution of the pharmaceuticals, namely, carbamazepine, ibuprofen, and sulfadiazine, was to investigate.Materials and Methods: The two pilot-scale constructed wetlands (CW) were operated in parallel; one as an experimental unit (a planted reactor with P. australis) and the other as a control (an unplanted reactor with Leca). Pretreatment and analyses of the carbamazepine, ibuprofen, sulfadiazine, and tissue samples (Leca, P. australis body and P.australis leaf) were conducted using HPLC.Results: The carbamazepine, ibuprofen, and sulfadiazine removal efficiencies for the planted and unplanted reactors were 89.23% and 95.94%, 89.50% and 94.73%, and 67.20% and 93.68%, respectively. The Leca bed permitted an efficient removal. Leca has a high sorption capacity for these pharmaceuticals, with removal efficiencies of 93.68-95.94% in the unplanted reactors. Conclusions: Sorption processes might be of a major importance in achieving efficient treatment of wastewater, particularly in the removal of organic material that are resistant to biodegradation, in which case the materials composing the support matrix may play an important role. The results obtained in the present study indicate that a constructed wetland with Leca as a substrate and planted with P. australis is effective in the treatment of wastewater contaminated with carbamazepine, ibuprofen, and sulfadiazine.
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نویسندگان مقاله nihan amp amp ouml zengin | amp amp ouml zengin
department of environmental engineering, gorukle campus, faculty of engineering, uludag university, 16059, bursa, turkey

ayşe elmaci | ayşe
department of environmental engineering, gorukle campus, faculty of engineering, uludag university, 16059, bursa, turkey

نشانی اینترنتی http://www.ijbiotech.com/article_32623_6022cc46f0153f64ee06ca07d919fb7e.pdf
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