An Overview of Waste Oil and Waste Oil USTs(1) by hcj

VIEWS: 6 PAGES: 27

									 Christie Bautista
February 1, 2010
 Background
 Agenda
 The Oil Process
 Issues with waste oil USTs
 The Big Picture
An Overview
Examples of uses
 Automotive Oils
   Engine lubrication
   Gear oil

 Industrial Oils
   Hydraulic machinery
   Compressors
   Transformers
Automotive Oil             Industrial Oil
   Higher quality than       Lower grade oils for
                               operation
    industrial oil
                               Higher concentrations of
   Contains heavy metal   
                               contaminants
    contaminants
                              Requires greater amount of
   Easy to recycle            energy input to remove
                               impurities
   Contaminants are derived from:
    Additives to improve engine oil lubrication
    Wear and tear of engine parts

   Common Contaminants:
    Metals: Al, Ca, Pb, Cu, Mg, Mo, Zn, Na
    Solvents
    Particulate matter
    Other: B, Cl, P, N, S, Si
   Waste Oil is typically stored in:
    Drums
    ASTs
    USTs
   Waste Oil delivery into USTs can be by:




    Direct Drop
Remote   Fill
   Waste oil is withdrawn from the UST by:
    Stinger
    Hose

   Waste oil is pumped into the truck

   Sludge is left in the tank
    The UST can be filled up to 30% of its capacity until
     it is cleaned out.
   Used Oil shall be transported an authorized
    facility, including:
    In-state recycling facility
    Transfer facility
    Out-of-State recycling facility
Three issues to
consider…
 Sludge
         Exemption
 Overfill
 Monitoring
   Overview
    Waste oil is pumped out first
    Sludge accumulates up to 30% of the capacity of the
     UST prior to being cleaned out
    High pressure wash to “loosen” the sludge
    Wastewater generated is hauled off as oily water
    Possible issue with overfill
Exemption - 2635(b)(3)
The local agency may waive overfill equipment
 if:
 The inlet exists in an observable area
 Spill container is adequate to collect overfill
 The UST is filled by transfers of no more than 25
  gallons at one time
   Things to consider if overfill prevention is
    waived:

    Remote fill
      If the tank is full, waste oil will begin to store in
       the piping

    Direct drop
      Waste oil will spill into spill bucket; however,
      Look out for staining on the ground
• Compatibility issues with sensors and
  constituents found in waste oil

• Review third party certification to ensure what is
  being used is compatible and approved for waste
  oil

• Federal EPA states that the best technology
  available are optical sensors
 Optical   Sensors
Why should we care?
Nearly 11 million gallons of crude
 oil was released into the ocean.
41 million gallons was
unaccounted for in
2008
Environmental Impact
 One gallon of used motor oil can contaminate
  approximately one million gallons of fresh
  water – the estimated annual drinking water
  demand for 50 people.

   Where is it going?
               Christie Bautista
               (818) 717-6665
             cbautist@dtsc.ca.gov

               Visit our web page
http://www.dtsc.ca.gov/HazardousWaste/Used_Oil.cfm

								
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