کاربرد پوسته برنج خام در حذف نفت خام از محیط های آبی

نوع مقاله: علمی-پژوهشی

نویسندگان

1 اصفهان، دانشگاه صنعتی اصفهان، دانشکده منابع طبیعی، گروه محیط زیست

2 اصفهان، دانشگاه صنعتی اصفهان، دانشکده شیمی، گروه شیمی تجزیه

چکیده

در این مطالعه، از پوسته برنج خام به عنوان جاذب برای حذف نفت خام از محیط آبی استفاده شده است. ویژگی‌ های جاذب به کمک آنالیز عنصری (CHNS)، دستگاه پلاسمای جفت شده القایی(ICP-OES)، پرتو سنجی فروسرخ تبدیل فوریه(FT-IR) ومیکروسکوپ الکترونی روبشی(SEM) تعیین شد. میزان جذب نفت به روش وزنی تعیین شد. اثر پارامترهای گوناگون مؤثر بر جذب شامل زمان تماس، دانه بندی، غلظت اولیه ترکیب نفتی و میزان جاذب بررسی شد. نتیجه‌ ها نشان داد سرعت جذب نفت خام زیاد بوده و از معادله سینتیک شبه مرتبه دوم پیروی می‌ کند. با کاهش اندازه ذره پوسته برنج خام، درصد جذب از 50% به حدود 30% کاهش یافت. همچنین جذب نفت خام بر روی پوسته برنج با مدل فروندلیچ برازش بهتری داشت. بیش ‌ترین جذب نفت خام در محیط آبی توسط پوسته برنج خام در شرایط بهینه حدود 55% بود

کلیدواژه‌ها

موضوعات


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