文章基本信息

标题：Removal of Dexamethasone from Aqueous Solutions using Sono-Nanocatalysis Process
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作者：Hasan Rahmani ; Kourosh Rahmani ; Ayat Rahmani 等
期刊名称：Research Journal of Environmental Sciences
印刷版ISSN：1819-3412
电子版ISSN：2152-8238
出版年度：2015
卷号：9
期号：7
页码：320-331
DOI：10.3923/rjes.2015.320.331
出版社：Academic Journals Inc., USA
摘要：Degradation of dexamethasone (DEX) was investigated using nano-scaled Zero-Valent Iron (nZVI) in the presence of hydrogen peroxide and ultrasound (US). The experiments were performed in different variables such as pH, nZVI dose, H₂O₂ concentration, DEX concentration and ultrasonic frequency. Maximum removal (92%) was obtained at pH: 4, nZVI: 0.3 g L^-1, H₂O₂: 1.5 mmol, DEX: 15 mg L^-1 and US: 140 kHz. The pH was one of the most important factor influencing the process, also, determining the optimal dose of hydrogen peroxide had to be considered. In this study, degradation reaction kinetics of DEX and efficiency of the removal of COD were investigated in synthetic and actual wastewater.