کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1247041 969793 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Applying sequential injection analysis (SIA) and response surface methodology for optimization of Fenton-based processes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Applying sequential injection analysis (SIA) and response surface methodology for optimization of Fenton-based processes
چکیده انگلیسی

This work presents the use of sequential injection analysis (SIA) and the response surface methodology as a tool for optimization of Fenton-based processes. Alizarin red S dye (C.I. 58005) was used as a model compound for the anthraquinones family, whose pigments have a large use in coatings industry. The following factors were considered: [H2O2]:[Alizarin] and [H2O2]:[FeSO4] ratios and pH. The SIA system was designed to add reagents to the reactor and to perform on-line sampling of the reaction medium, sending the samples to a flow-through spectrophotometer for monitoring the color reduction of the dye. The proposed system fed the statistical program with degradation data for fast construction of response surface plots. After optimization, 99.7% of the dye was degraded and the TOC content was reduced to 35% of the original value. Low reagents consumption and high sampling throughput were the remarkable features of the SIA system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 77, Issue 3, 15 January 2009, Pages 1081–1086
نویسندگان
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