MIL-HDBK-1005/9A
2.3.3.1
Metal Plating Wastes. Provide for isolation and
separate collection system for chrome and phenol containing
wastewaters, for cyanide containing wastewaters, and for mixed
acid and alkaline-content wastewaters.
2.3.3.2
Oily Wastes. Used oils and solvents should be
segregated at their source (if possible). Do not mix oily waste
with aqueous waste streams containing metals and phenols.
2.3.3.3
Costs. The additional cost of source isolation and
separate collection systems is offset by reduced treatment
process requirements, complexity, and cost and reduction in
facility operational hazards.
2.3.4
Recovery. Consider the feasibility of recovering
materials, such as semiprecious and precious metals, and chrome,
from a metal plating waste stream for subsequent reuse by using
electrolytic recovery units (ERUs).
2.3.5
Good Housekeeping. Investigate current process
operating practices to determine if good housekeeping practices
are employed, or if changes can be made to reduce wasted
materials or use of excess water.
2.4
Wastewater Flows and Characteristics
2.4.1
Types of Wastewater. Primary sources of industrial
wastes at naval facilities are shipyards, air stations, and
aircraft rework facilities. Primary sources of wastewater from
these facilities are plating operations, painting and stripping
operations, graving dock operations, degreasing operations,
firefighting schools, equipment operation and maintenance, and
miscellaneous processes.
2.4.2
Flows
2.4.2.1
Monitoring. Each industrial waste should be surveyed
and its flow should be established. Average conditions, as well
as variations, should be identified. Flow rates should be
correlated with process production rates to allow extrapolation
to full load conditions.
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