MIL-HDBK-1005/9A
2.6.7.3
Treatment System. Preliminary Engineering Studies
should be conducted in accordance with NAVFACINST 4862.5 to
determine the appropriate treatment facilities. Treatment will
usually consist of a collection sump with a diversion structure
for bypassing storm water flow followed by a gravity oil-water
separator. Clear water can be discharged to the POTW or to the
industrial waste sewer (if available) depending on the
concentration of metals and detergents. Refer to Section 3 for
additional information on oily waste treatment
2.6.8
Naval Shipyard
2.6.8.1
Operations. Operations at naval shipyards that
generate industrial waste can be extensive and depend on the
size of the yard. Wastes include metal working and plating,
maintenance, paint spraying and stripping, and miscellaneous
shop work.
2.6.8.2
Waste Characteristics. The predominant wastes are
oils, solids, and heavy metals. Phenols will be present in
wastewater from paint stripping operations.
2.6.8.3
Treatment System. For oily waste collection and
treatment, refer to Section 3. Wastewater from plating, paint
stripping, paint spraying, maintenance, pipe shop, and other
miscellaneous sources should be segregated at the source into
waste streams indicated for NADEP installations in Figure 4.
Collection of such streams is recommended with treatment as
shown in Figure 4. Wastes from drydock operations should be
introduced to this treatment scheme after grit removal.
2.6.9
Paint Spray and Stripping Shop
2.6.9.1
Operations. The primary operations include the use of
stripping and washdown solutions for removing paint and spray
booths for applying new paint.
2.6.9.2
Waste Characteristics. Paint stripping operations
produce small volumes of heavily polluted wastewater that is
difficult to treat. Paint booth wash waters accumulate metals
from the captured aerosols and from the water curtain discharges
of spray paint operations. Principal pollutants are common
metals, hexavalent chromium, ferro-cyanide, and solvents
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