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Using Fixed Bed Columns packed with natural zeolite to Removal heavy metals from Industrial wastewater of Banias Refinary

استخدام الزيوليت الطبيعي في أعمدة الوسط الثابت لإزالة المعادن الثقيلة من مياه الصرف الصناعي لمصفاة بانياس

1978   6   23   0 ( 0 )
 Publication date 2017
and research's language is العربية
 Created by Shamra Editor




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Fixed bed adsorption columns packed with natural zeolite were used to study the kinetics of heavy metals removal from the single component solutions of Vanadium, Nikle, Zinc, and Lead. The system parameters studied include solution flow rate and bed height. The effect of competing cations was also studied to establish the effectiveness of natural zeolite in treating Industrial wastewater under continuous conditions using fixed bed columns. The metal loaded natural zeolite was regenerated using NaCl . The results from column studies showed that the Slower flow rates gave better removal efficiencies compared to faster ones, Longer bed heights also resulted in greater adsorption efficiencies. The bed depth service time (BDST) model was successfully used to simulate experimental results at 30 % breakthrough. This model provides the necessary parameters needed for fixed bed column design, the factor R2 ranged between 0.91 – 0.95. Natural zeolite was exposed to 3 cycles of adsorption and desorption. The efficiency of the column in removing heavy metals was high, The results indicate that natural zeolite can be regenerated and re-used in removing heavy metals from solution.


Artificial intelligence review:
Research summary
تهدف هذه الدراسة إلى تقييم فعالية استخدام الزيوليت الطبيعي في إزالة المعادن الثقيلة من مياه الصرف الصناعي باستخدام أعمدة امتزاز بوسط ثابت. تم دراسة حركية إزالة المعادن الثقيلة مثل الفاناديوم، النيكل، الزنك، والرصاص من محاليل أحادية المكون. تضمنت بارامترات النظام المدروسة معدل تدفق المحلول وارتفاع الوسط. أظهرت النتائج أن معدلات التدفق الأبطأ وارتفاعات الوسط الأطول أدت إلى كفاءات إزالة أكبر. تم استخدام نموذج مدة خدمة عمق الوسط (BDST) بنجاح لمحاكاة النتائج التجريبية عند اختراق مقداره 30%. أظهرت النتائج أن الزيوليت الطبيعي يمكن تجديده وإعادة استخدامه لإزالة المعادن الثقيلة من المحلول، مما يجعله خيارًا فعالًا واقتصاديًا لمعالجة مياه الصرف الصناعي.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة نحو استخدام مواد طبيعية وفعالة في معالجة مياه الصرف الصناعي. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، الدراسة تركز بشكل رئيسي على محاليل أحادية المكون، بينما في الواقع، مياه الصرف الصناعي تحتوي على مزيج معقد من الملوثات. لذا، يجب إجراء دراسات إضافية تشمل تأثير الملوثات المتعددة. ثانيًا، الدراسة لم تتناول بشكل كافٍ تأثير الشوارد المنافسة في الظروف الحقيقية. أخيرًا، يمكن أن تكون هناك حاجة لتقييم التكلفة الاقتصادية الشاملة لاستخدام الزيوليت الطبيعي مقارنةً بالتقنيات الأخرى المتاحة.
Questions related to the research
  1. ما هي المعادن الثقيلة التي تم دراستها في هذه البحث؟

    تم دراسة إزالة الفاناديوم، النيكل، الزنك، والرصاص من محاليل أحادية المكون.

  2. ما هي البارامترات التي تم دراستها في النظام؟

    تم دراسة معدل تدفق المحلول وارتفاع الوسط كبارامترات للنظام.

  3. ما هو النموذج الذي تم استخدامه لمحاكاة النتائج التجريبية؟

    تم استخدام نموذج مدة خدمة عمق الوسط (BDST) لمحاكاة النتائج التجريبية.

  4. هل يمكن إعادة استخدام الزيوليت الطبيعي بعد استخدامه في إزالة المعادن الثقيلة؟

    نعم، أظهرت النتائج أن الزيوليت الطبيعي يمكن تجديده وإعادة استخدامه لإزالة المعادن الثقيلة من المحلول.


References used
NICHOLAS,P.C. ; PAUL,R. Best Practices in the Petroleum Industry .Handbook of Pollution Prevention and Cleaner Prodection. ELSEVIER,) 2009(. P 45-47
KHALLOUF,N.N.,SHAHEEN,H., ABBASE,GAssessing the efficiency of Desalting unit and Treatment Plant in removing some of heavy Metals from the Effluent Refinery Banias company.Journal of Tishreen University,vol 35, .(2013). No2
AFSHIN, P.; TORAJ, M. Wastewater treatment of desalting units. Desalination, Volume222,Issues 1-3, (2008) P 249–254
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