期刊
JOURNAL OF ADVANCED RESEARCH
卷 3, 期 4, 页码 331-336出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jare.2011.10.004
关键词
Combined unit; Coagulants; Flocculation; Hydraulic mixing; Municipal waste water
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. (C) 2011 Cairo University. Production and hosting by Elsevier B.V. All rights reserved.
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