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A Study of the Efficiency of Power Generation and Water Treatment in the Sediment Microbial Fuel Cells (SMFC)

دراسة كفاءة توليد الطاقة ومعالجة المياه في خلايا الوقود الميكروبية لطبقة الرواسب

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 Publication date 2020
  fields Chemistry
and research's language is العربية
 Created by Shamra Editor




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The Sediment microbial Fuel Cell (SMFC) has been studied in terms of electrical power generation, and water treatment. With the aim to design the Sediment Microbial Fuel Cell (SMFC), the sediment was brought from the Al-sonobar River bed, where it was described to indicate the organic content and nutrients in it. The cell was equipped with a surface aeration system and started working in it. Where it monitored the electrical current and water pollution indicators over time. Later the aeration mode was changed and previous measurements of electricity generation, water pollution indicators were carried out, and compared with the previous stage. Results of the first mode of aeration have shown that the greatest value for Short Circuit Current (ISC) was (0.905) mA while the greatest value for Open Circuit Voltage (VOC) was (0.390) V. While a rise in current and voltage values was observed in the second mode of aeration, in which the greatest value of Short Circuit Current was (1.240) mA, and the greatest value of open circuit voltage (0.430) V. When the circuit has been connected to an external resistance R=100 Ω, the values for current, voltage, current density and power density were (0.805) mA, (0.084) V, (3.18) mA/m2, and (0.269) mW/m2, respectively. For water analysis, an increase in pH values of 8.90 was observed. The efficiency of removing of Chemical Oxygen Demand (COD), phosphates, nitrates and Total Dissolved Salts (TDS) has also increased, reaching: 72.11%, 62.70%, 35.60%, and 30.61%, respectively.


Artificial intelligence review:
Research summary
تناولت الدراسة كفاءة خلايا الوقود الميكروبية لطبقة الرواسب في توليد الطاقة الكهربائية ومعالجة المياه. تم تصميم خلية الوقود الميكروبية باستخدام رواسب من نهر الصنوبر، وتم تزويدها بمنظومة تهوية سطحية. أظهرت النتائج أن النمط الأول من التهوية حقق أعلى قيمة لتيار الدارة القصيرة (0.905 mA) وأعلى قيمة لجهد الدارة المفتوحة (0.390 V). بينما أظهر النمط الثاني من التهوية ارتفاعًا في قيم التيار والجهد، حيث بلغت أعلى قيمة لتيار الدارة القصيرة (1.240 mA) وأعلى قيمة لجهد الدارة المفتوحة (0.430 V). كما أظهرت النتائج كفاءة عالية في إزالة الملوثات من المياه مثل COD والفوسفات والنترات والأملاح المنحلة الكلية. تم الوصول إلى كثافة تيار ناتج (3.18 mA/m²) وكثافة طاقة (0.269 mW/m²) في النمط الثاني من التهوية. خلصت الدراسة إلى أن خلايا الوقود الميكروبية لطبقة الرواسب يمكن أن تكون حلاً مستدامًا لتوليد الطاقة ومعالجة المياه، مع توصيات بتطوير النموذج الحالي واستخدام أنواع جديدة من الأقطاب الكهربائية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة نحو تحقيق استخدام مستدام للطاقة ومعالجة المياه. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين تحليل اقتصادي شامل لتكلفة إنشاء وتشغيل خلايا الوقود الميكروبية مقارنةً بالطرق التقليدية. ثانيًا، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل البيئية المختلفة مثل درجة الحرارة والملوحة على كفاءة الخلايا. ثالثًا، كان من الممكن توسيع نطاق الدراسة ليشمل أنواع مختلفة من الرواسب والمياه لتعميم النتائج. وأخيرًا، يجب إجراء تجارب طويلة الأمد لتقييم استدامة وكفاءة النظام على المدى البعيد.
Questions related to the research
  1. ما هي أعلى قيمة لتيار الدارة القصيرة التي تم تحقيقها في الدراسة؟

    أعلى قيمة لتيار الدارة القصيرة التي تم تحقيقها هي 1.240 mA في النمط الثاني من التهوية.

  2. ما هي كفاءة إزالة COD في النمط الثاني من التهوية؟

    كفاءة إزالة COD في النمط الثاني من التهوية بلغت 72.11%.

  3. ما هي التوصيات التي قدمتها الدراسة لتطوير خلايا الوقود الميكروبية؟

    التوصيات تشمل دراسة إمكانية تطوير النموذج الحالي باستخدام أنواع جديدة من الأقطاب الكهربائية، ودراسة تأثير العوامل المختلفة مثل المسافة بين الأقطاب والأس الهيدروجيني والمقاومة الخارجية على كفاءة توليد الطاقة ومعالجة المياه.

  4. ما هو الفرق الرئيسي بين خلايا الوقود الميكروبية لطبقة الرواسب وخلايا الوقود الميكروبية التقليدية؟

    الفرق الرئيسي هو أن خلايا الوقود الميكروبية لطبقة الرواسب تستخدم حجرة واحدة تحتوي على المصعد المغمور داخل الرواسب، بينما خلايا الوقود الميكروبية التقليدية تتكون من حجرتين منفصلتين للمصعد والمهبط.


References used
RABAEY, K., VERSTRAETE, W. Microbial fuel cells novel biotechnology for energy generation.Trends Biotechnol. 23(6),2005,291
KIM, B.H., KIM, H.J., HYUN, M.S., PARK, D.H. Direct electrode reaction of Fe (III)-reducing bacterium, Shewanella putrefaciens.J. Microbiol. Biotechnol. 9(2), 1999, 127
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