کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4981010 1453333 2017 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Arsenic and selenium removal from water using biosynthesized nanoscale zero-valent iron: A factorial design analysis
ترجمه فارسی عنوان
حذف آرسنیک و سلنیوم از آب با استفاده از آهن غنی شده با نانومقیاس بیوسنتز: تجزیه و تحلیل طراحی فاکتوریل
کلمات کلیدی
بیوسنتز، نانوذرات، حذف آرسنیک و سلنیوم، آهن نانو فاز صفر، جذب،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
Environmentally friendly method is reported for the synthesis of nanoscale zero-valent iron using plant extract as a reducing agent. The biosynthesized nanoparticles were characterized using FESEM, EDS, XRD, FT-IR and TGA. A factorial design analysis was conducted to determine the influence of different factors affecting the removal of arsenic (As) and selenium (Se) from water using biosynthesized nanoscale zero-valent iron. The factors investigated include; pH, adsorbent dosage, initial concentration, contact time and shaker speed. It was observed that the effect of adsorbent dosage was most significant for the removal of arsenic from water. At 95% confidence level, dosage variation showed more than 30% increase in removal efficiency when it was varied between 10 mg and 100 mg. About 95% of arsenic removal was recorded using 100 mg adsorbent at solution pH 3. For selenium removal, the effect of adsorbent dosage showed a relatively positive influence. About 90% removal efficiency was recorded at Se solution of pH 3 which signifies the applicability of the material for real water samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 107, April 2017, Pages 518-527
نویسندگان
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