MIL-HDBK-1005/9A
qi
=
discharge rate from each OWTP (assume one
pump per riser), gpm(L/s) (see Table 11)
ni
=
total number of OWTP connected to same
pier pressure main
(2) Design flow for pier laterals is determined by
Equation 7:
EQUATION:
(7)
P
Q lateral = 0 . 3 1∑
(n i ) (q i )
i=1
where
Qlateral
=
design daily flow for pier lateral,
gpm(L/s)
P
=
maximum number of ships connected to same
lateral during holiday berthing condition,
use ship mix that produces largest daily
flow
qi
=
discharge rate from each OWTP (assume one
pump per riser), gpm(L/s) (see Table 11)
ni
=
total number of OWTP connected to same pier
pressure main
Total design flows from multiple parallel piers or
multiple parallel pier mains on a single pier are assumed to be
additive.
3.8.2
Shoreside Collection Systems
3.8.2.1
General. Lay out the system to segregate oily and
non-oily wastewater sources to minimize oil-water separator
hydraulic loading, minimize emulsification, and maximize oil and
grease concentration. Combine similar wastewaters and route to
most efficient treatment processes.
3.8.2.2
Collection System Layout. The collection system
consists of a 6-inch (150-mm)(minimum) pier pressure main with
4-inch (100-mm)(minimum) pressure laterals manifold to main.
Main may be laid in center or alongside of pier. Facilities
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