کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8855619 | 1619097 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous effects of pH, concentration, pressure on dye removal by a polyamide nanofilter membrane; optimization through response surface methodology
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, the application of a thin-film composite Nanofiltration (NF) membrane with isoelectric point (IP) of 4.5 have been applied in textile wastewater treatment. Removal of acid blue 25, disperse red 73 and methylene blue dyes under operating conditions of initial concentration (40-180â¯mg/l), pH (3-10) and pressure (0.5-1.1â¯MPa) was investigated. Response surface methodology (Box-Behnken design) was employed to design runs and analyze the effects of operating parameters. According to the results, pH had the most significant impact on the removal efficiency of disperse red73 and acid blue 25 due to the electrical repulsive force and membrane swelling,while concentration had the most impact on methylene blue removal because of screening effect. NF removal performance showed removal enhancement to 91% and 92% at pH of 10 and concentration of 180â¯mg/l, for disperse red73 and acid blue 25, respectively while the maximum methylene blue removal efficiency of 86% was obtained at pH of 3 and 40â¯mg/l. The optimum pressure was observed at 0.8â¯MPa for disperse red and acid blue removal, while decreasing the pressure to 0.5â¯MPa showed better methylene blue removal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 10, December 2018, Pages 223-230
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 10, December 2018, Pages 223-230
نویسندگان
Najmeh Askari, Mehrdad Farhadian, Amir Razmjou,