کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
629014 1455493 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fluoride removal by Donnan dialysis with plasma-modified and unmodified anion-exchange membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Fluoride removal by Donnan dialysis with plasma-modified and unmodified anion-exchange membranes
چکیده انگلیسی

The removal of fluoride from aqueous solution with plasma-modified and unmodified poly(2-chloroaniline) (P2ClAn) anion-exchange membranes were studied by Donnan dialysis (DD). The effects of concentration, pH, and different valence anions on feed phase were investigated. The surfaces of P2C1An membranes were modified by electron cyclotron resonance plasma (ECR) to increase the performance. The flux values of fluoride before and after the modification were obtained. An increase of fluoride flux has been observed with increasing concentration of the feed phase. Also, the flux value for the plasma-modified P2C1An membrane was found to be higher than that of the unmodified membrane. This can be explained by a wider and increased number of pores in the plasma-modified membrane. In addition, effects of different valence anions on flux of fluoride were studied and found as Cl−> S042−. The pH optimization was carried out between 3–9 and pH 5.5 used for all experiments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 197, Issues 1–3, 2 October 2006, Pages 217-224