MIL-HDBK-1005/16
c)
Pipes installed south of Norfolk, VA, and
Portland, OR: no insulation required. See NCEL R-593 for
flushing requirements.
d)
Refer to Figure 5 and NCEL R-593 for details of
heating element installation.
4.2.4
Odor/Septicity Control. Slope sewers as much as
possible to minimize detention time and provide aeration. Aerate
holding tanks unless detention time is less than 3 hours at
average 24-hour flow.
Keep force mains as short as possible. Check for the
possibility of sulfide generation. Make provisions to control
sulfide generation if necessary using an injection of oxidizing
chemicals such as chlorine, permanganate, or hydrogen peroxide.
Consult suppliers of chemicals or generation and feed equipment
regarding costs and expected performance. Refer to WEF MOP FD-5
for rational methods to predict sulfide generation rates and
a)
Maintain minimum flow velocity of 3 feet per
second (fps) (0.9 meters per second [m/s]).
b)
Provide cleanouts and air relief valves as required.
c)
Provide check valves at pump stations.
4.2.5
Structures and Appurtenances. Refer to Table 7 and
Figures 3 through 7. Figure 6 shows ship-to-shore sewage hose
components. Figure 7 illustrates an aboveground receiving hose
connection.
4.2.6
Pump Stations. Make capacity equal to that of incoming
sewers whenever this exceeds the expected peak flow. For pump
station design for transfer of ship's oily wastewater, refer to
MIL-HDBK 1005/9.
4.2.7
Pipe. Mechanical joint, lined ductile iron should be
used for exposed locations where high impact resistance is
important. Support exposed pipe per manufacturer's
recommendations. In other exposed locations, for superior
corrosion resistance, consider thermoplastic (high density
polyethylene) pressure pipe with butt fusion joints. Plastic
piping on pier and wharf systems should be protected from impact
by floating debris and other hazards by placement in a specially
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