Page 552 - Fair, Geyer, and Okun's Water and wastewater engineering : water supply and wastewater removal

JWCL344_ch14_500-554.qxd 8/7/10 8:56 PM Page 510

510 Chapter 14 Design of Sewer Systems

(a) Egg-shaped or oval (b) Semicircular section with cunette

(c) Rectangular section (d) Horseshoe section
Figure 14.10 Sections of Storm and Combined Sewers.

Weirs Weirs
3 Storm flow in excess of 1 and 2

1 Minimum dry-weather flow
2

Maximum dry-weather flow in excess of 1

Weir Weir
3
Underpass
2
1
Cleanout

Inlet chamber Outlet chamber
Vertical section
Figure 14.11 Inverted Siphon or Suppressed Sewer for Combined Sewage.