MIL-HDBK-1005/16
now also being constructed of alternative materials. Settled
solids are dragged to the solids hopper at one end of the tank
and removed.
An oil-skimming device should be provided at the end of
the separation chamber. The rotatable, slotted-pipe skimmer is
the most common type. Other oil-skimming devices include belt
skimmers and floating skimmers. The waste oil collected by the
skimmer is discharged to a waste oil holding tank. The tank
should be designed so that confined space entry is not required
for operation or maintenance.
Figure 11
Conventional Gravity Separator
72
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