MANAGEMENT OF POLLUTION ABATEMENT FACILITIES

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MANAGEMENT OFPOLLUTION ABATEMENT FACILITIES
ENVIRONMENTAL MANAGEMENT DIV, IE DEPT, MCB CAMP
LEJEUNE
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TRAINING
All personnel in units which utilize pollution
abatement facilities must be properly trained in
its operation maintenance. BO 11090.3A

• Personnel should know
• How a pollution abatement facility operates
• The importance of proper management techniques to
  optimize its treatment capability

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WHAT IS A POLLUTION ABATEMENT FACILITY?
Pollution Abatement Facilities consist of
oil-water separators (OWSs) their associated
influent sources.
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• These systems generally serve one or more of the
  following purposes
• Treatment of rinsate from vehicle washrack
  operations
• Treatment of rinsate associated with floor drain
  discharges at maintenance garage
• Emergency containment treatment of spills at
  fuel unloading areas
• Treatment of incidental spills at HAZMAT/POL
  storage areas

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HOW DOES AN OWS WORK?
Solids settle out behind the first baffle and
form a sludge on the bottom of the chamber. As
the wastewater flows to the middle, or
separation, chamber, oil droplets rise to the
surface and are trapped behind a second, higher
baffle, which has an opening along its bottom
edge. The remaining water passes under the second
baffle into the outlet chamber, where it is
diverted to a discharge point. Consequently,
solid sludges can be collected from the bottom of
the inlet chamber and oil droplets that
accumulate at the water's surface in the
separation chamber can be skimmed off.
Discharge
Inlet
Oil Layer
Sludge
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EXAMPLES OF SYSTEMS AT MCBCL
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EXAMPLES OF SYSTEMS AT MCBCL
WASHRACK
GRIT CHAMBER
STORMWATER BYPASS
OWS
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WHY ARE WE CONCERNED ABOUT WHATS IN THE OWS?
BECAUSE.
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OWSs discharge to
- the Wastewater Treatment system
An OWS that is operating properly will greatly
reduce the potential for POLs hazardous
substances to flow directly into the wastewater
treatment system. When an OWS system bypasses
oils grease to the wastewater treatment system,
it can pass through the plant discharge
contaminants into the New River.
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OWSs discharge to the stormwater system..
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WHAT ARE THE CONSEQUENCES OF IMPROPER USE OF THE
OWS?
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BMPS FOR OWSs
Daily Inspections. The unit ECO, AECO or
assigned personnel operating the facility are
responsible for inspecting the units pollution
abatement facilities each operational day.
Documentation of the inspections must be
maintained utilizing the Monitoring Log for Oil
Pollution Abatement Facilities. The log can
also be downloaded from the EMD website. The
inspection process includes checks for the
following (1) cracks or other structural
damage Contact RCRS at 451-1482 to report (2)
oil spills around the facility (3) direct
discharge of oil/used oil and/or fuel (4)
foreign objects/debris (cans, bottles, sticks,
rags, etc) (5) system clogging or OWS bypass
Contact RCRS immediately and (6)
post-indicator valves (PIV) are closed and
locked.
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BMPS FOR OWSs
Daily Maintenance/Housekeeping. The
importance of daily maintenance at these
facilities cannot be overstressed. The
efficiency of the facility will be greatly
reduced if not given the proper attention. Any
sound maintenance program should start with good
housekeeping. The components of facility
housekeeping are
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BMPS FOR OWSs
Policing. Ensure that all grass adjacent to the
facility is cut that trash other debris are
removed on a regular basis. Remove any foreign
objects/debris observed in the pollution
abatement facility by using a dip net. Under no
circumstances are personnel allowed to enter the
OWS or other system components in order to
retrieve debris. These systems qualify as OSHA
confined spaces and require special training and
equipment to enter.
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BMPS FOR OWSs
Vehicle Management. Whenever possible, vehicles
should be parked on an impervious surface (i.e.
concrete or asphalt) to avoid the discharge of
hazardous materials into the environment.
Maintenance operations should always be conducted
on impervious surfaces. Any minor oil spills
that occur must be cleaned up immediately by
operating personnel. This should be done with
the use of an absorbent material, which should be
readily available at each facility. In the event
of an emergency or significant oil spill,
operating personnel must immediately contact the
Fire Emergency Services Division (911).
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BMPS FOR OWSs
Wash Aprons. Concrete wash aprons should be
washed and hosed down daily in order to keep the
aprons neat and orderly. Only approved water
hoses may be utilized on the washracks only
approved solvents/detergents may be utilized for
washing. Any spills that occurred must be
cleaned up using an absorbent prior to hosing
down. Make sure that any wash water is directed
to the OWS.
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BMPS FOR OWSs
Grates/Grit Chambers. Grit chambers are designed
to collect runoff from wash aprons and to inhibit
any sand grit or large solids from entering the
downstream structures (i.e. OWS). It is
important that the grit chambers be checked daily
to ensure that solids are not accumulating to
such an extent that grit could be further
transmitted through the facility. The grating
which covers the top of the grit chamber and
allows the surface drainage to enter the
structure must also be kept free of heavy
accumulations of solids, such as, rags, leaves,
etc.
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BMPS FOR OWSs
Drainage Ditch. On a daily basis, the overflow
discharge point at the drainage ditch must be
inspected to see if there are any visible signs
of oily discharge. Any deficiencies noted should
be reported to the EMD, RCRS at telephone
451-1482.
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SERVICING/MAINTENANCE REQUESTS.
Oil that accumulates floats on the surface of
the OWS must be periodically removed. The oil
should not be allowed to collect to such an
extent that it is discharged from the OWS through
a bypass chamber or through the wastewater
distribution system. Personnel from the
Resource Conservation Recovery Section
periodically service these facilities to remove
the accumulated oil from the surface
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SERVICING/MAINTENANCE REQUESTS.
If the thickness of the oil floating on top of
the OWS becomes approximately 2 inches, the
operating personnel should contact EMD at
telephone [phone] to request service for the
facility. A ticket number should be requested
recorded on the daily inspection logsheet.

• If oil appears to be bypassing the system,
  immediately cease operations contact EMD
• If repairs are required to address structural or
  mechanical damage to any part of the pollution
  abatement facility, please contact EMD prior to
  initiating a work ticket through Operations,
  Public Works.

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PROHIBITED ACTIVITIES
The Direct Disposal of Oils, Fuels, Hazardous
Materials or Hazardous Waste into the pollution
abatement facility is STRICTLY PROHIBITED.
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PROHIBITED ACTIVITIES
No cans, sticks, leaves, oil filters, rags,
brushes, litter or other foreign objects may be
discarded on or into the pollution abatement
facility. DO NOT ENTER TO CLEAN!!
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PROHIBITED ACTIVITIES
Do not use or discard solvents on washracks or in
floor drains. Floor drains are designed for
incidental spills leaks are not intended for
direct discharges of wastes. Cleaning agents
detergents used on washracks must be approved by
EMD.
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Oil/Water separators are in-line devices used
to remove oils greases they are only designed
to remove small quantities of oil soil.There
are several major circumstances that can affect
the operation of the separator
CONCLUSION

• Too much dirt in the separator can reduce its
  operation
• Too much water discharging to the separator can
  reduce the time the wastewater remains in the
  separator will affect treatment
• Using more detergent than necessary may change
  the oil flowing to the separator so it will not
  float to the top
• Certain substances cannot be discharged to a
  drain. These include used oil, antifreeze,
  battery acid, solvents other spilled materials.
  
• It is important to keep the work areas around the
  separators clean.
• DAILY INSPECTIONS WILL ENSURE PROPER
• OPERATION OF YOUR OIL/WATER SEPARATOR!

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QUESTIONS??