MIL-HDBK-1005/9A
Regional and local authorities may impose additional
effluent quality requirements. These requirements may restrict
heavy metals and organic pollutants. In such cases, perform
treatability studies to determine process additions or
modifications necessary to the standard treatment system.
3.4
Point Source Control. Investigate point source
controls to eliminate or reduce wastewater volume and
contaminant concentrations. It may be more economical to
implement point source controls rather than provide a wastewater
treatment system. Consider point source control techniques such
as process change or modification, material recovery, wastewater
segregation, and water reuse.
3.4.1
Segregation and Recovery. Consider segregation of
oily wastewater streams based on intended use of reclaimed oil;
for example, lubricating oils may be re-refined instead of
incinerated. Do not mix high flash oil with low flash oil or
halogenated solvents with nonhalogenated oil.
3.4.2
Process Change. Consider use of dry absorbents to
minimize oils reaching a sewer. Dry absorbents may be collected
and disposed of with solid waste materials. Evaluate flash
point of spent absorbent for possible hazardous waste
designation under RCRA guidelines.
3.5
Disposal of Oil. Oils and oily sludges obtained from
treatment or pretreatment systems may be disposed of by several
methods. These are reuse/recovery, incineration, selling by
Defense Reutilization and Marketing Office (DRMO), waste hauler,
landfill, and land disposal. Final disposal options must be
evaluated concurrently with oil-water separation methods and
environmental requirements to establish the most cost-effective
total system.
3.5.1
Reuse/Recovery. Consider processes that will enable
reusing separated oils for subsequent use. Additional water
removal from gravity or flotation units may be necessary to
88
Previous Page
