oil water separator

August 31, 2020
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Our single wall or double wall below ground parallel, corrugated plate oil/water separators meet and exceed API 421 requirements, removing essentially 100% of dispersed non-emulsified oil droplets in the waste stream.

These separators are special purpose prefabricated parallel corrugated plate, cylindrical, gravity displacement oil water separators, containing an inlet compartment, sludge chamber, separation chamber, oil storage area and clean water compartment.

As shown below, the separation process if fairly simple. Wastewater flows into the inlet compartment. A baffle interrupts the flow and allows solids to drop out. Next the oil water moves into the separation chamber where our innovative media causes small oil droplets entrained in the water to coalesce into larger ones which then separate from the water and float to the surface. The clean water then travels into the clean water compartment through the outlet to the sewer.

Features

  • Patented, revolutionary, non- plugging coalescing plates which remove free oil droplets as small as 20 microns
  • Single wall or double wall construction with interstitial space for leak detection
  • Rectangular access manhole with 3’ extension to service and maintain coalescing media
  • Fittings for vent, oil pump out, sludge pump out, gauging and lifting lugs
  • Exterior sandblasted and coated
  • Will achieve discharge of 5 ppm or less in accordance with CEN EN 858-1
  • Warranted for (5) years on material and workmanship and (30) years against external and internal corrosion
  • Construction in accordance with UL58 and corrosion protection in accordance with UL1746
Below Ground Oil Water Separator Design
Featuring one of our oil water separator designs to be placed under ground.

Options

  • Internal coating for corrosion protection
  • Grit chamber for high solids applications
  • Hold down straps
  • Leak and Level detection systems

Applications

  • Parking Lots
  • Re-fueling Facilities
  • Marinas
  • Military Installations
  • Truck and Equipment Washes

How does it work?

Analysis

With these separators, we can provide analysis, which indicates that the separator will be provided with the required square feet of projected plate separation area to achieve the specified performance under laminar flow (i.e. Reynolds Number of less than 500) conditions. This service can include calculations signed by a registered professional engineer.

Underground Oil Water Separator Specifications
Model # Average Flow Rate (GPM) Capacity (GALLONS) Dimensions, D x L (FT)
WB-QB-342 30-60 350 3.5 x 6
WB-QB-548 55-110 550 4 x 6
WB-QB-1048 100-200 1000 4 x 10.75
WB-QB-2064 200-400 2000 5.3 x 12
WB-QB-3064 300-600 3000 5.3 x 18
WB-QB-4064 400-800 4000 5.3 x 24
Larger sizes available.

Underground Oil Water Separator Specifications

Frequently Asked Questions

 


June 30, 2020
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Designed to remove extensive contamination, our heavy-duty, multi-stage, discharge treatment systems treat wash water so it can be safely discharged to the sewer or, in many cases, the surroundings.

Stage 1 – Solids Settling 

Multi-Media Sewer Discharge Water Treatment

Almost all commercial washing operations produce some solids so the first stage of our filtration process is the solids handling system. We help you develop site-specific solutions to eliminate as many solids as possible before running the water through to the next stage of filtration. Solutions include custom-designed sumps, basins, trenches or screening systems.

Stage 2 – Oils & Solids Separation 

After the coarse solids settling, the water is processed through either a multi-compartment stainless steel oil water separator or a stainless steel clarifier oil-water separator, which separates out smaller suspended solids, oil and water. In the first compartment of the clarifier oil water separator, free oils float to the surface.  In the second section, the stainless steel clarifying plates remove coarse amounts of oil from the waste stream and remove as much Total Suspended Solids (TSS) as possible.  The angles of the non-clogging plates are 55° which will allow any solids to slide down the plates into the solids hopper, where they can easily be pumped out.   Finally, the coalescing media removes essentially 100% of all free and dispersed non-emulsified oils so the FOG effluent concentration can be as low as 5 ppm.

Stage 3 – Water Filtration & Polishing

After the clarifier oil-water separator, the water is pumped though a multi-media (sand, gravel, anthracite) filter and then safely discharged to the sewer or surroundings. Processed water passing through the system will be free of substantially all emulsified oils, waxes and other volatile organic compounds with only limited soaps and detergents remaining in the treated water. If needed, a blended activated carbon or a carbon/clay mixture tailored to a particular waste stream can be added as an optional polishing filter.

System Features

  • Non-Ferrous Construction – Stainless Steel, PVC
  • Fully-Automatic, pre-wired
  • Clarifier Separator System
    • Stainless Steel Clarifier Oil/Water Separator with 55° Hopper
    • Advanced European coalescing media designed to remove oil droplets greater than 20 microns
    • Electric or Air Diaphragm pump with controller
  • Discharge Filtration System
    • Automated Self-Cleaning Multi-Media and/or Clay/Carbon Fiberglass Filter Tank
    • Heavy-duty, high efficiency Pump
    • Sensors and interconnecting Schedule 80 plumbing
    • NEMA-4X  control panel
    • PLC controller for automatic back wash operations
    • All components mounted on heavy-duty stainless steel skid

Depending on the location, many options are available to maximize the efficiency of the wastewater treatment system including:

Optional Features

  • Can be configured with existing equipment
  • SCADA and remote monitoring UL/CSA Listing
  • Transportable equipment rooms
  • Rain Diverter Systems
  • Chemical/Acid/Salinity Resistant Pumps & Components
  • pH control system

TYPICAL MM-SERIES SYSTEM SPECIFICATIONS

MODEL

MM-10/10

MM-35/20

MM-65/50

MM-100*

DESIGN FLOW RATE, GPM

1-10

1-25

10-55

30-100

COALESCING PLATE AREA, SF

41

124

211

400

COALESCING MEDIA, CF

4

8

24

48

CLARIFIER SEPARATOR SIZE, FT (WxLxH)

3 x 7 x 5

3.5 x 8 x 6

4 x 10 x 6

5 x 11 x 7

NON-EMUSIFYING INFLUENT PUMP, GPM MAX

20

50

75

125

MULTI-MEDIA, LBS

300-500

500-1000

2500-2600

3700-4200

OPTIONAL POLISHING CLAY/CARBON, CF

4-15

10-40

20-40

40

FILTER PUMP, HP

1.5

2

3

5

DIRTY WATER STORAGE VOLUME, GAL

500-750

500-1000

750-1000

1000-1500

CONTROL SYSTEM

PLC, Automatic, Manual or Off

PUMP FRAME SIZE, FT (WxLxH)
(TANKS ADDITIONAL)

3 x 6 x 6.5

3 x 8 x 8

POWER REQUIREMENTS

208 / 240 V 1 ph   or  208 / 240 / 480 V 3 ph

 

* LARGER CAPACITY SYSTEMS (200-1500 GPM) ARE AVAILABLE

 

APPLICATIONS:

 


February 6, 2020
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We have developed a revolutionary heavy-duty wash and treatment system by integrating our demucking system with our clarifier oil water separator system.

Using low flow pumps, moderate pressure and specialized nozzles, our robustly- designed demucker systems can quickly clean large trucks, tracked vehicles or any heavy equipment caked with mud, clay, ice, or muck – using only 20 gpm of water.

After washing, we can then process this water through our stainless steel clarifier oil water separator to reduce your environmental liabilities. Even though full of solids, oils and grease, our separator will effectively treat this wash water for re-use or discharge. 

Fast and effective cleaning with low water treatment costs – definitely a win-win situation!

Features:

  • High-Efficiency Diaphragm or Multi Stage Pump, 20 GPM @ 1000 PSI
  • Stainless Steel Construction
  • NEMA 4X Integrated Control Panel
  • Multi-directional Stream-to-Cone Gun & Industrial grade hose reel
  • Poly water storage tank
  • Stainless steel clarifier separator designed to remove 99% of oil droplets
  • Inclined plates to remove solids
  • Sludge hopper to capture and contain settleable solids
  • Electric or Air diaphragm transfer pump
  • Internal oil storage tank

Optional Features Available:

  • UL Listings
  • Remote Motor Controls
  • Heating Systems
  • Automated Wash Monitors
  • Portable Wash Containment Pad
  • Odor Control Systems
  • Polishing Packs

Reduce your environmental liabilities and get the power of a wash monitor with a fraction of the water usage!

SYSTEM SPECIFICATIONS

Pumping System

DTS-20

Max Flow Rate & Pressure          

20 GPM @ 1000 PSI

Uses Fresh or Recycled Water

Both

Motor, HP

15

Pump Type

Electric Diaphragm

Controls

Manual/Remote/PLC

Hose

50-75’ L @ ¾” D

Gun/Wand

Handheld Stream-to-Cone

Water Storage

500 Gallon Poly Tank

Industrial Grade Hose Reel

Manual, Spring Rewind, Portable

Electric

120/208/480/575 V 3 PH 50/60 HZ

Approximate Dimensions (with tank)

8’ L x 4’ W x 7’ H

 

 

Clarifier Oil Water Separator

 

Max Flow Rate

20 GPM

Internal Tank Capacity

650 Gallons

Sludge Capacity

27 Gallons

Coalescing Media

6 Cubic Feet

Pump Type

Air or Electric Diaphragm

Controls

Air or Electric Manual/Remote/PLC

Air/Electric

8-14 cfm at 40 psi/120/208/480/575 V 3 PH 50/60 HZ

Approximate Dimensions

8’ L x 3’ 6” W x 6’ H

 


October 16, 2019
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Issue: An equipment rental company was expanding and they moved into a new facility
without a wash pad. There was plenty of indoor space but no outdoor space to put in a
new wash pad. The property owner did not want them to cut concrete or substantially
alter the property but our client still needed be able to wash their equipment onsite,
contain the water and discharge it properly to the sewer.

Solution: For a complete wash system, we recommended installing a SPT-10 Clarifier
Oil Water Separator System
, an industrial-grade electric heated water pressure washer
with two portable hose reels, and a portable wash containment pad.
The portable wash pad allows them to wash as much as possible without any major
modifications to the property. They will also be able to move the entire system to a new
facility, if needed. The wash pad was equipped with pedestrian grating along both sides
so that the service personnel can work safely on a dry surface!


October 1, 2019
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Above Ground Clarifier Oil Water Separator Flow Process

  1. The oil/water/sludge mixture enters the oil water separator
  2. The heavier sludge and particulates fall out of the fluid and are captured in the sludge hopper
  3. The oil and water mixture with lighter particulates travels up the inclined plates
  4. The inclined plates start to separate the mixture. Some oil rises to the top of the separator and the remainder of the particulates slide back down to the sludge hopper.
  5. The remaining oil and water mixture then moves through the coalescing media packs where the majority of the smaller oil particles attach to the media and combine together to form larger oil particles.
  6. These larger oil particles become so buoyant that they release from the media and travel to the top of the separator.
  7. As the oil volume in the separator reaches a certain level, the oil is drained to through piping to an oil storage tank.
  8. The clean water continues over the weir to the clean water chamber where it goes through a final polishing pack and out to the sewer.

WashBaySolutions.com offers a full line of oil and water separators that conform to the guidelines of API 421 for the removal of all free and dispersed non-emulsified oil and solids that settle from the waste stream. Get a Quote Today!

Oil Water Separator – Frequently Asked Questions

Please see a list of question and answers below related to our oil water separator products.


June 4, 2019
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Problem: An engineer consulting with a railroad called with an application at a locomotive repair facility. Over time, lube oil and diesel fuel leaked from the locomotives into an inspection pit. Periodically, the oil along with sand and dirt collected in the pit was discharged into a retention pond. The oil was then skimmed from the surface of the pond and the water discharged to the sewer.

The roe skimmer wasn’t quite doing a good job so he asked us for suggestions on how to better treat the water before discharging to the sewer.

Solution: We recommended installing a SPT-20 Clarifier Oil Water Separator System with our standard air-driven pump and control system to treat the water. The clarifier section of the SPT-20 would remove all of the settleable solids while the coalescing media would remove all of the oil from the waste stream.

The SPT-20 did an excellent job of cleaning up the water during the week. The only issue reported was that their sump overflowed with water every weekend so their staff was met with too much water on the pad every Monday morning.

Our maintenance manager trouble-shot the entire system with their staff through Facetime, phone calls, and emails. A local electrician also tried to find the source of the problem since there were other issues at the facility. They tried multiple modifications but the problem persisted.

Finally, we engineered and assembled a hybrid control system just for their particular location and sent it out to them. The control system worked and the system is now fully operational and the client is very pleased.


April 9, 2019
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Problem: A car dealer moving into a new facility with a limited time lease. The property owner did not want them to cut concrete or substantially alter the property but the dealer needed to be able to wash dozens of cars per week onsite, contain the water and discharge it properly to the sewer.

Solution:  For a complete wash system, we recommended installing a SPT-10 Clarifier Oil Water Separator System, a cold water pressure washer with a portable hose reel, and a portable wash containment pad. This allows them to wash as many cars as possible without any major modifications to the property.  They will also be able to move the entire system to a new facility at the end of their lease. With their input, we helped them layout the system to maximize their space.

After installation of the pad, however, they noticed the concrete floor slope much slighter than originally thought and that the wash water was not moving off the pad well.  This flat slope left his staff working in standing water and the SPT-10 not being able to process the wash water properly.

To improve this drainage issue, our staff developed a low cost under layer for the wash pad which created a slight slope for the water.  We then installed this under layer and re-piped the in-take piping for the SPT-10 so the wash water flows freely.  The general manager of the facility is very pleased with our systems and service.


November 2, 2018
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oil water separator

Problem: A metals dealer and recycling company had a small wash outside area with a 900 gallon in-ground concrete sump adjacent to it. The sump captured both the wash water and storm water coming off the pad. Contaminants included compressor oil, motor oil, transmission fluid and gasoline.

The company called and asked us for suggestions on how to treat the water before discharging to the sewer. The nearest building to the sump was several hundred feet away and they had very limited area inside it to install an oil water separator.

transportable equipment room

Solution: This was a perfect application for our transportable equipment rooms. To treat the water, we installed an oil water separator with an electric diaphragm pump in a 20′ long container, our TER-20. Since the client was located in a northern climate, we added insulation and a heating system to the TER-20 to guard against freezing issues.

We placed the TER-20 on a pad adjacent to the in-ground sump and it took less than a day to hook up all of the electrical and plumbing lines to make the system operational.

Using the TER-20 saved the client building costs and provided additional storage space. It also allows them the flexibility to move the entire oil water separator system to a different facility when needed.


North Carolina

Headquarters

At WashBaySolutions.com, we have been specializing in high tech, custom-engineered solutions to complex washing and wastewater issues since 1991.
+ 1 800-453-8639

WashbaySolutions.com

sales@washbaysolutions.com

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