Environmental Engineering FOURTH EDITION

Sludge Treatment and Disposal 221

Gravity drainage zone I Wedge zone I "S" zone

1- I

Figure 10-11. Belt filter.

Time 0 V Corrected V O/V
(min) (s) (a) (d) (s/mL)

-2 - 0 - -

0 0 1.5 0 -

1 60 2.8 1.3 46.3

2 120 3.8 2.3 52.3

3 180 4.6 3.1 58.0

4 240 5.5 4.0 60.0

5 300 6.1 4.6 65.2