کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7121272 1461463 2018 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of fly ash for sorption of copper ions in multiple contaminant system: An implication on re-use of waste material under concept of sponge city
ترجمه فارسی عنوان
بررسی خاکسترهای پروازی برای جذب یون های مس در سیستم های مختلف آلاینده: یک کاربرد در استفاده مجدد از مواد زائد تحت عنوان شهر اسفنجی
کلمات کلیدی
شهر اسفنجی، خاکستر پرواز فلز مس، ایزوترم ضریب عقب ماندگی، پیش بینی سرنوشت،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
Many previous studies of soil contaminant treatment have primarily analysed heavy metal contaminant ion retention in fly ash (FA) in a single isolated medium whereas, factoring out the competitive systems. This study seeks to determine the interaction of the heavy metal copper ion (Cu+2) with fly ash under single and competitive systems and also to expound its impact on fate prediction. Freundlich and Langmuir non-linear isotherms were adopted to quantify the sorption results. The retardation factor attained from Freundlich isotherm predicts more than Langmuir. The Langmuir isotherm break-through-curves (BTC) was slightly earlier in break through, with a sharp front and prolonged tailing, whereas the Freundlich isotherm appears considerably after the production of a spreading pollutant front. Freundlich retardation factors established in this study was employed to one-dimensional (1-D) solute transport model, which successfully stimulated good prediction for sorption by fly ash. Conversely, significant inconsistencies were identified from the Langmuir isotherm for evaluating the fate of Cu+2 at high concentration range. This study recommends Freundlich isotherm for modelling transport of copper ions in a competitive environment in fly ash.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 124, August 2018, Pages 522-528
نویسندگان
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