کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5408368 1506530 2017 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of different polymeric resins for naproxen removal from wastewater
ترجمه فارسی عنوان
مقایسه رزین های پلیمری مختلف برای حذف ناپروکسن از فاضلاب
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The polymeric resins are eco-friendly, cheap and have good surface properties. These resins were used for Naproxen (NPX) adsorption from aqueous solutions. Three different resins were chosen. These are Amberlite XAD-2, XAD-4 and XAD-16. The effects of adsorption variables were tested. The variables were selected as adsorbent quantity, NPX concentration, pH of solution, temperature and contact time. Langmuir and Freundlich isotherm models were applied to the experimental data. And it was observed that Langmuir isotherm model fitted the experimental data properly. The pseudo second order kinetic model and Weber-Morris intraparticle diffusion model were used for kinetic analysis of NPX adsorption. The pseudo second order model was the best fitted kinetic model for NPX adsorption. The rate-controlling step was determined as the intraparticle diffusion step. The NPX adsorption on Amberlite resins was exothermic process. According to isotherm parameters, separation factor (RL) values, kinetic and thermodynamic data, XAD-4 was found to be the most suitable adsorbent for NPX adsorption. Amberlite XAD-4 reached the maximum removal percentage (99.88%) at 0.5 g of adsorbent. NPX adsorption capacity of XAD-4 was 6.52 mg/g at 308 K, according to Langmuir isotherm model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 241, September 2017, Pages 633-637
نویسندگان
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