تعديل المعالجة متعددة المراحل (اللاهوائية- منقوصة الأكسجين- الهوائية) باستخدام قشور اللوز كحوامل بيولوجية
محتوى المقالة الرئيسي
الملخص
في هذه الدراسة تم تعديل عملية المعالجة A2O (الأحواض اللاهوائية- منقوصة الأكسجين- الهوائية) بإضافة قشور اللوز كحوامل بيولوجية وتم تقييم أدائها في مجموعتين لتحقيق الإزالة المتزامنة للمواد العضوية والمغذيات (النتروجين والفوسفور) من مياه الصرف الصحي. المجموعة الأولى: تم ملء المفاعل الحيوي الهوائي بما يصل إلى 7% على أساس الحجم الفعال، المجموعة الثانية: تمت تعبئة جميع المفاعلات الحيوية بما يصل إلى 7% على أساس الحجم الفعال. في كلا المجموعتين كان تركيز الكتلة الحيوية المعلقة ضمن السائل المختلط MLSS= 2000 mg/L وزمن المكث الهيدروليكي HRT= 12.5 hours. تم مقارنة كفاءة المجموعتين من خلال تحليل كفاءات إزالةCOD ، SS ، NH4 +-N ، PO4-3. كفاءة الإزالة للمجموعة الأولى 94.71% و 90.52% و 95.73% و 92.55%على ا لتوالي بينما في المجموعة الثانية 96.53% و 89.82% و 98.29% و 95.61% على التوالي. نلاحظ أن المعالجة عند إضافة القشور في جميع المفاعلات الحيوية هي الأفضل، لكن كفاءة إزالة الـ SS انخفضت بشكل طفيف والسبب في ذلك يعود إلى تحلل القشور (المادة العضوية). أظهرت النتائج الثبات الجيد للنظام المعدل دون إضافة أي مصادر كربونية خارجية حيث أن قشور اللوز لديها القدرة على إطلاق الكربون للبكتيريا، امتزاز الملوثات وتُعتبر حامل ممتاز للبكتيريا (الغشاء البيولوجي).
Received 25/05/2023
Revised 07/07/2023
Accepted 09/07/2023
Published Online First 20/10/2023
تفاصيل المقالة
هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.
كيفية الاقتباس
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