Document Type : Research articles
Authors
1
Civil Engineering, Shoubra faculty of Engineering, Benha university, Egypt
2
Professor of Sanitary and Environmental Engineering at civil engineering department of, Faculty of Engineering (Shobra), Banha University.
3
Shoubra faculty of engineering, benha university . Rod Al Farag Street, Shubra, Cairo, Egypt
4
Lecturer of Sanitary and Environmental Engineering, Department of Civil Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt.
Abstract
This experimental research compares the Polyethylene Bio-media and Ceramic Rings for their ability to treat the effluent wastewater from the primary sedimentation tank utilizing biological aerated filter BAFs. The filters were designed and worked in a parallel process under the same variables. These variables are the hydraulic retention time (HRT). The ceramic rings were used as submerged media, while the other filter used filter polyethylene bio media as floating media. The BAFs operated continuously with a variation of (HRT) equal to 24 minutes, 36 minutes, and 72 minutes under a DO ratio equal to 4.67±0.2 mg/l to find out the efficiency of each media in (COD), (BOD), and TSS) removal. The optimum removal efficiency 83.93%, 83.65%, and 85.60%, for COD, BOD, and TSS, respectively, by using ceramic rings media; to the other side, the removal efficiency reached 68.06%, 69.18%, and 71.07% when using bio media, respectively. The experiment results revealed that the ceramic rings showed more efficiency than the polyethylene bio media according to COD, BOD, and TSS.
Keywords
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