کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10395373 | 888977 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of combining biological treatment and activated carbon on hexavalent chromium reduction
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of combining biological treatment and activated carbon on hexavalent chromium reduction Effects of combining biological treatment and activated carbon on hexavalent chromium reduction](/preview/png/10395373.png)
چکیده انگلیسی
The objectives of the present work were: (a) to analyze the Cr(VI) removal by combining activated sludge (AS) with powdered activated carbon (PAC), (b) to analyze the effect of PAC and Cr(VI) on the growth kinetics of activated sludge, and (c) to determine if the combined method (AS-PAC) for Cr(VI) removal can be considered additive or synergistic with respect to the individual processes. Chromate removal was improved by increasing PAC concentrations in both PAC and AS-PAC systems. Cr(VI) removal using the AS-PAC system was higher than using AS or PAC. The increase of Cr(VI) caused longer lag phase and lower observed specific growth rate (μobs), biomass yield (YX/S), and specific growth substrate consumption rate (qS) of activated sludge; additionally, PAC did not enhance the growth kinetic parameters (μobs, YX/S, qS). Cr(VI) reduction in AS-PAC system was the result of the additive effect of each individual Cr(VI) removal process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 3, February 2011, Pages 2495-2502
Journal: Bioresource Technology - Volume 102, Issue 3, February 2011, Pages 2495-2502
نویسندگان
A.M. Ferro Orozco, E.M. Contreras, N.E. Zaritzky,