Page 480 - Fundamentals of Water Treatment Unit Processes : Physical, Chemical, and Biological

Cake Filtration 435

W(pre-coat) (kg=m 2 ) (lb=ft 2 ) 0.73 0.15 (continued)

feed) (kg=m 3 ) 0.025

7.15E 09 Conditions C(body (mg=L) 25
M5

(m=s) 0.001408

M4 1.188E 06 HLR (m=h) 3.66

14.8 (gpm=ft 2 ) 1.50

Equation M3 7.54E 09 0.00010295 m=r w (g) 1.32E 07

by Dependence
Calculated M2 1.00E 06 0.0091438 T 6 M6 14-*) Water m (N-s=m 2 ) 0.00132

as Temperature þ T 5 M5 Equation r w (kg=m 3 ) 1.00Eþ03
Variables for Coefficients M1 5.61E 05 0.068256 þ T 4 M4 by T (8C) 10 feed) v t

Hydraulic þ T 3 M3 (Calculated k(cake) r(cake)

of M0 0.001787 999.84 650 9.806 þ T 2 Variables k(cake) (m 2 ) 1.08570E 12 6.90900E 14 1.57920E 13 5.92200E 14 2.46750E 13 4.93500E 13 1.08570E 12 1.28310E 12 1.87530E 12 2.96100E 12 3.94800E 12 7.30380E 12 2.46750E 11
Function M2 þ T (Darcys) 1.10 0.07 0.16 0.06 0.25 0.50 1.10 1.3 1.9 3.0 4.0 7.4 25.0 k(pre-coat) r(pre-coat) þ C(body

a s=m 2 ) M1 Hydraulic W(pre-coat)
as Units (N (kg=m 3 ) (m=s 2 ) þ
CD14.2 Loss M0 ¼ y of Properties r(body feed) (kg=m 3 ) 144 112 128 128 128 128 144 152 152 192 192 228 312 m v r w g

TABLE Pressure Variable m(water) r(water) Formula: Function DE r (pre-coat) (kg=m 3 ) 144 112 128 128 128 128 144 152 152 192 192 228 312 ¼ h L

G
as
Calculations r(Dry Density) (kg=m 3 ) 144 112 128 128 128 128 144 152 152 192 192 228 312

CD14-* DE Super- data Super-

TABLE Headloss of Grade Hyflo Cel Reference Cel Filter 577 Celite 505 Celite Standard Super-Cel 512 Celite Hyflo Cel 501 Celite 503 Celite 535 Celite 545 Celite 550 Celite 560 Celite