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Combined coagulation flocculation pre treatment unit for municipal wastewater
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نویسنده
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Ismail Ibrahim M. ,Fawzy Ahmed S. ,Abdel-Monem Nabil M. ,Mahmoud Mahmoud H. ,El-Halwany Mohamed A.
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منبع
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journal of advanced research - 2012 - دوره : 3 - شماره : 4 - صفحه:331 -336
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چکیده
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The potentials of using the hydraulic technique in combined unit for municipal wastewater treatment were studied. a combined unit in which processes of coagulation, flocculation and sedimentation, has been designed utilizing hydraulic mixing instead of mechanical mixing. a jar test treatability study has been conducted to locate the optimum dose of the coagulants to be used. alum, ferrous sulfate, ferric sulfate, a mixture of ferric and ferrous sulfates, and mixture of lime and ferrous sulfate were all tested. a pilot unit was constructed in the existing wastewater treatment plant at el mansoura governorate located in north egypt. the optimum dose of coagulants used in the combined unit gives removal efficiencies for cod, bod, and total phosphorous as 65%, 55%, and 83%, respectively.
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کلیدواژه
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Combined unit; Coagulants; Flocculation; Hydraulic mixing; Municipal waste water
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آدرس
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Cairo University, Chemical Engineering Department, Egypt, Cairo University, Chemical Engineering Department, Egypt, Cairo University, Chemical Engineering Department, Egypt, Mansoura University, Faculty of Engineering, Mathematical and Physics Department, Egypt, Mansoura University, Faculty of Engineering, Mathematical and Physics Department, Egypt
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Authors
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