Unformatted text preview: Given: ρ = 998.7 kg/m 3 , μ=1.139 x 10-3 N·s/m 2 13 A dual-media rapid filter contains anthracite with an effective size of 0.9mm, sphericity of 0.75, porosity of 0.48, and depth of 0.40m and sand with an effective size of 0.48mm, sphericity of 0.90, porosity of 0.40m. The uniformity coefficients are 1.5 for each of the media. Perform all calculations for a temperature of 10 o C. Divide each medium into three layers on a weight basis. (a) Calculate the mintial headloss through the bed if the loading rate is 200m 3 /m 2 / d. Given: ρ = 999.7 kg/m 3 , μ=1.307 x 10-3 N·s/m 2...
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- Fall '09
- The Medium, Media filter, rapid sand filter, Soil gradation, Water filters