Unit 9 oil water separators
Download
1 / 14

unit 9 oil - PowerPoint PPT Presentation


  • 226 Views
  • Uploaded on

Unit 9 Oil/Water Separators. What is an OWS?. Making It Work. Reduce your disposal costs Reducing your permit and regulatory requirements Reducing your service intervals. P2 Alternative: OWS BMPs. MINIMIZE Solids: sediments, trash, sand Contaminants: antifreeze, fuel, solvents, paint

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'unit 9 oil' - Audrey


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Unit 9 oil water separators

Unit 9Oil/Water Separators



Making it work
Making It Work

  • Reduce your disposal costs

  • Reducing your permit and regulatory requirements

  • Reducing your service intervals


P2 alternative ows bmps
P2 Alternative: OWS BMPs

MINIMIZE

  • Solids: sediments, trash, sand

  • Contaminants: antifreeze, fuel, solvents, paint

  • Wastewater, storm water, wash water

    INSPECT

    Bioremediate



Minimize contaminants
Minimize Contaminants

  • Eliminate or minimize floor drains

  • Use “dry” cleanup techniques

  • Be aware of potential contaminant sources

    - antifreeze - paints - oils

    - solvents - fuels

  • Heavy vs. light contaminants

  • Avoid emulsifying detergents


Minimize wastewater
Minimize Wastewater

  • Mitigate introduction of storm water with berms and washrack covers.

  • Reroute roof drains and condensate from air conditioning and air compressors

  • Use high-pressure, low-volume sprays for vehicle washing


Inspection and clean out
Inspection and Clean Out

  • Implement regular inspection

    • Sludge depth – Contaminants (odors, sheens)

    • Floating oil – Solids on grates

  • Perform regular cleanout

    • Determine need for cleanout based on inspection, not calendar

    • Remove oil from collection trough or from surface using reusable absorbent pads

    • Refill OWS with water before returning to service


  • Making bioremediation work
    Making Bioremediation Work

    • Periodic “microbe dosing” of OWS replenishes microbe population

    • Keep pH level < 8.5

    • Harsh chemicals can kill microbes

    • Vendors can provide equipment, microbes, and labor as part of service agreement ($75 to $130 per month)


    Case study 1 salem boys
    Case Study 1: Salem Boys

    Challenge: Reduce $1,000 cost of OWS cleanout incurred every 3 months

    Approach:

    • Install screens and 1/4” expanded steel mesh to existing OWS grates

    • Use pigs and sloping pavement to settle out sediment

    • Use “oil-only” absorbent pads to collect floating oil from OWS water surface


    Case Study 1: Salem Boys

    • Dose OWS with microbes every 4 hours (service costs $75 per month)

    • Use removable screens in vehicle bay to remove debris


    Case study 1 salem boys1
    Case Study 1: Salem Boys

    Results:

    • reduced cleanout frequency by 75% - from once every 3 months to once/year

    • saved approximately $3,000/year in sludge cleanout and disposal

    • microbe dosing costs $900/year

    • debris grates and absorbents cost $250/year


    Case study 2 usps
    Case Study 2: USPS

    Huntington Beach, CA

    • Discharge violations

    • 80% reduction of effluent hydrocarbons with bioremediation


    Take home messages
    Take Home Messages

    • Understand how your OWS works

    • Source reduction and segregation

    • Bioremediation works

    • Save $$ by reducing clean-out frequency and violations


    ad