Subject Area
Civil and Environmental Engineering
Article Type
Original Study
Abstract
Filtration is the main process in water treatment plant. In this process the water passing through some porous media (sand) to remove the suspended solids and impurities. In the beginning of filtration process, the head loss is small and it can be easily calculated by different empirical equations, but as the filter bed gets clogged, the head loss increases. The pilot plant was installed in sanitary engineering laboratory, Mansoura University. The operating conditions have five explanatory parameters. These parameters are filter depth, filtration rate, run time, influent turbidity, and alum dose. The filter depth was ranged from 80 to 140 cm and alum dose were ranged from 20 to 50 mg/lit. The rate of filtration was used in the range from 4 to 8 m/hr and the initial turbidities varied from 10 to 50 NTU. A mathematical model was obtained for head loss through deep bed sand filter with various operating conditions (filter depth, filtration rate, alum dose, run time, and initial turbidity).The proposed model yield highly accurate results with correlation coefficient (R2) of 0.88. The proposed model showed that the most significant parameters on predicted head loss are the run time and filtration rate. Also, the simple proposed model can be easily and effectively used as a decision supporting tool for prediction of filtration run length.
Keywords
Deep bed filters; Head Loss; filtration rate
Recommended Citation
Mahanna, Hani; Fouad, Moharram; Radwan, Kamal; and Elgamal, Hoda
(2020)
"Modeling of Head Loss through Deep Bed Sand Filters.,"
Mansoura Engineering Journal: Vol. 40
:
Iss.
4
, Article 21.
Available at:
https://doi.org/10.21608/bfemu.2020.102444
