ارزیابی و مقایسه عملکرد کربن فعال گرانول برای حذف MTBE از آب چاه‌های آلوده با دو روش آزمایشگاهی RSSCT و نیمه صنعتی

نوع مقاله : مقاله پژوهشی

چکیده

مصرف روز افزون MTBE به‌عنوان بالا برنده عدد اکتان بنزین می‌تواند یکی از عوامل آلودگی آب‌های زیرزمینی (با توجه به حلالیت زیاد آن در آب) باشد. حمل و نقل، شکستگی خطوط لوله انتقال بنزین و ریختن بنزین در جایگاه‌های توزیع سبب نشت این ماده می‌شود. غلظت MTBE در آب چاه مورد نظر ppb 50 بوده است. تصفیه این آب با فرایند جذب کربن فعال گرانول F-600 filtrasorb، که  مکان‌های جذب پر انرژی دارد، با دو روشRSSCT  و مطالعه پایلوتی مطالعه و مقایسه شده است. سیستم RSSCT طوری طراحی شده که مقدار 10min=اEBCTرا در مقیاس پایلوتی مشابه‌سازی کند. مطابق نتایج، زمان عملکرد محاسبه شده با روش RSSCT با مقدار عملی آن در مطالعات پایلوتی کاملاً مشابه است.
 

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of Granular Activated Carbon Performance on MTBE Removal from Polluted Well Water by both RSSCT and Pilot Plant Methods

چکیده [English]

Oxygenated additive (MTBE) widely used as octane enhancer of gasoline. Due to high water solubility of MTBE (50 gr/l), it can pollute ground waters as a result of production, storage, leakages of oxygenated gasoline from pipelines cracking, underground storage tanks in gas stations, transportation and distribution of MTBE. These items are major source of pollution of ground waters. MTBE concentration in a given well was considered 50 ppb. Treating this water with adsorption process on granular activated carbon filtrasorb (F-600) that has high-energy sites was studied by RSSCT and pilot plant methods and their results were compared. RSSCT system was designed to simulate pilot plant scale at EBCT=10 min. According to the results, breakthrough time calculated by RSSCT method was completely similar to operational value in pilot plant study.
 

کلیدواژه‌ها [English]

  • Granulated Activated Carbon
  • Adsorption Process
  • Pilot Study
  • Breakthrough Point

مراجع

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