کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6640542 461158 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of cadmium from drilling fluid using nano-adsorbent
ترجمه فارسی عنوان
حذف کادمیوم از مایع حفاری با استفاده از نانوذرات
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Magnetic nanoparticles are exceptional adsorbent materials due to their unique magnetic properties and good adsorption capacity. In this study, a new method combining nanoparticle adsorption and magnetic separation was investigated for the removal of cadmium ions from the drilling fluid and its efficiency was studied. Magnetic iron oxide nanoparticles were successfully synthesized, characterized and evaluated by X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Infrared spectroscopy (IR). The effects of various factors, e.g. pH, shaking rate, retention time and magnetic adsorbent doses on the adsorption process were also studied. The concentrations of cadmium ions were measured with both Atomic Absorption Spectroscopy (AAS) and Electrochemical Method. Adsorption reached equilibrium within 10 min. The maximum adsorption occurred at pH of 6 and shaking rate of 50 rad/s (480 RPM) with 3.2 mg of adsorbent for an initial Cd concentration of 5 mg/L. The adsorption data were analyzed and fitted well by Freundlich isotherm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 111, September 2013, Pages 505-509
نویسندگان
, , ,