کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
625823 1455438 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Combined humic substance and heavy metals coagulation, and membrane filtration under saline conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Combined humic substance and heavy metals coagulation, and membrane filtration under saline conditions
چکیده انگلیسی

Membrane retention was investigated with the aid of poly diallydimethylammonium chloride and copolymer of dimethyl aminoethyl acrylate polyelectrolyte coagulants. The membranes used were P005F ultrafiltration (UF) and NF270 nanofiltration (NF) membranes and the studied conditions were salinity level, humic substances (HS) concentration, heavy metals concentration and polyelectrolytes type and concentration. Results showed that with the aid of polyelectrolytes, HS retention reached a maximum point where further increase in polyelectrolytes degraded membrane retention. This study showed also that at low polyelectrolyte concentration, salinity reduced membrane retention. While at optimum polyelectrolytes dose, membrane performance was not affected by salinity. In addition, HS binding capacity for heavy metals was reduced considerably at high salinity levels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 253, Issues 1–3, April 2010, Pages 46–50
نویسندگان
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