کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
598524 1454092 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Al-Ferron kinetics and quantitative calculation of Al(III) species in polyaluminum chloride coagulants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Al-Ferron kinetics and quantitative calculation of Al(III) species in polyaluminum chloride coagulants
چکیده انگلیسی

The effect of prehydrolysis and the presence of silicate and/or sulfate on polyaluminum coagulants were investigated. A new Al-Ferron kinetics method was developed to monitor and calculate Al speciation. The results showed that the Al-Ferron kinetics fit a binary pseudo first order rate equation. Sulfate and silicate had different influences on Al-Ferron kinetics. Al-Ferron complexation timed spectrophotometry is the commonly used method of determining Al speciation but this new Al-Ferron kinetics calculation method shows different species distributions. For all the coagulants except polyaluminum silicate chloride (PASiC), the new method yielded higher Alb and lower Ala values. The Al(III) chemical species calculated using Al-Ferron kinetics is more consistent with the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 278, Issues 1–3, 20 April 2006, Pages 235–240
نویسندگان
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