کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
628428 1455484 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of Cr(III) cations and Cr(VI) anions on activated carbons oxidized by CO2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Removal of Cr(III) cations and Cr(VI) anions on activated carbons oxidized by CO2
چکیده انگلیسی

In the paper the results of oxidation of three activated carbons: F-300, WG-12 and ROW 08 Supra have been presented. These carbons are produced by means of vapour–gas method. WG-12 and ROW 08 Supra carbons are granular and F-300 carbon is grain. They also differ in terms of the material they have been made of. F-300 and WG-12 carbons are produced from brown coal and ROW 08 Supra is produced from peat. The oxidation was made at the temperature of 400 and 800°C by means of CO2 in a rotary furnace. The modification was carried out within 1, 2 and 3 h. The adsorption of chromium Cr(III) and Cr(VI) was conducted on carbons oxidized in such a way. Trivalent chromium occurs in water in the form of cation, and hexavalent chromium occurs in the form of anion. Ion number, embankment mass and the contents of ash in the analysed sorbents were also examined. The process was carried out in static conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 206, Issues 1–3, 5 February 2007, Pages 259-269