کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9681220 | 1455514 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chlorite removal with granular activated carbon
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Chlorite (ClOâ2) is the dominant degradation by-product coming from chlorine dioxide reactions. Compliance to the maximum concentration of 200 μg/l, established by new Italian regulations for drinking water (D. Lgs. 31/2001), can be accomplished by reduction of chlorine dioxide dosage during water treatment or by chlorite removal. In this work granular activated carbon (GAC) as a technology for chlorite removal was investigated; particularly, the interference between chlorite and organic matter removal on GAC active sites and the applicability of a “chemical regeneration” process in order to improve GAC efficiency for organic matter and chlorite removal were studied. Different batch and column tests were performed, both on distilled and surface water spiked with chlorite; both on virgin, exhausted and thermally regenerated carbon; and on exhausted GAC after chemical regeneration by acid, basic and basic-acid solutions. The results demonstrate that GAC can be an efficient method for chlorite removal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 176, Issues 1â3, 10 June 2005, Pages 255-265
Journal: Desalination - Volume 176, Issues 1â3, 10 June 2005, Pages 255-265
نویسندگان
Sabrina Sorlini, Carlo Collivignarelli,