کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9680931 | 1455507 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of water desalination using carbon-based adsorbents
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The objective of this work is to study the removal of Ca, Mg, Na and K from water using carbon-based materials obtained from sewage sludges pyrolysis. For this reason, carbon-based materials were prepared at two different pyrolysis temperatures: 450 (SL-450) and 650°C (SL-650). Also, a third material was prepared washing SL-650 with HNO3:H20 1:1 (vol). These carbon-based material were mixed with solutions with different concentrations of NaCl, KCl, CaCl2 and MgCl2. Results showed that percentages of metal removal followed next sequence Mg2+ > Ca2+ > Na+ â¼Â K+ and that the percentage of removal increased with the pH of the initial solution. Similar percentages of ions removal were obtained by SL-450 and SL-650 increasing the percentage of metal removal when the SL-650 washed with acid was used. Metals lixiviation from carbon-based materials decreases with the increment of the pyrolysis temperature. Nevertheless, the properties of raw material and consequently, of carbon-based materials can have a great influence in the adsorption properties of the final carbonaceous material, and so, in the removal of metals from water.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 183, Issues 1â3, 1 November 2005, Pages 249-255
Journal: Desalination - Volume 183, Issues 1â3, 1 November 2005, Pages 249-255
نویسندگان
Ana Méndez, Gabriel Gascó,