Skip to content
Above Ground Oil Water Separators

Mercer International offers above ground separators that supply both high efficiency and low maintenance--plus the versatility to field customize to suit your particular application. Our extraordinary design achieves extraordinary results. The Compliance Master™ design features the unique Multi-Pack™ coalescer that allows field adjustment to obtain the highest possible efficiency with the lowest practical maintenance frequency. The above-ground oily water separator market is littered with cheap "me too" corrugated plastic and steel coalescers. Although some of these are termed "enhanced" coalescers, they prematurely plug up with solids and sludge. These coalescers are difficult to clean--and very often need replacement--producing a high cost of ownership. Mercer's Multi-Pack coalescer is easily cleaned and is typically used for the life of the separator. Read more>>

Dupont_copy_2
Above Ground Oil Water Separators
5 gpm - 30 gpm (2 - 7 m3/h)

Our "low flow" series offers an industrial-duty design in a compact size. This separator series is...

pp&l-a50
Above Ground Oil Water Separators
50 gpm - 100 gpm

A step above the "low-flow" separator, is our 50-100 gpm family of units. This separator series...

dupont_a150_copy_2
Above Ground Oil Water Separators
150 gpm - 300 gpm

This series bridges the gap between our "small" separators lines and our "large" separators. It is...

12-8-14_download_059-1
Above Ground Oil Water Separators
400 gpm - 600 gpm

As flow rates become larger, the inherent design advantages of the Multi-Pack™ coalescer become...

230
Above Ground Oil Water Separators
750 gpm - 1,000 gpm

As the flow rates become larger, the importance of dedicated settling (solids) and rising (oil)...

OWS_Tank_1_at_WV_Shop_044
Above Ground Oil Water Separators
Over 1,000 gpm

Mercer supplies shop-fabricated units as large as can be physically shipped (up to 5,000 gpm or...

pse&g-burlington-a2000
Above Ground Oil Water Separators
Over 4000 gpm

Some text will come here. Some text will come here. Some text will come here. Some text will come...

12-8-14_download_034
Above Ground Oil Water Separators
Over 5,000 gpm

Some text will come here. Some text will come here. Some text will come here. Some text will come...

Below Ground Steel Oil Water Separators

Mercer supplies a line of high-performance cylindrical below-ground oil/water separators from 50-5,000 gpm (10-1,000 m3/h). Separators are available in carbon steel (single and double wall) with a variety of coatings including FRP and STI-P3. Mercer also offers a line of competitive below ground plastic units that are an ideal solution for blanket fleet installations, small wash bay needs, and anywhere competitive pricing is a concern. Read more>>

b500_(middleborough_recycling)-1_copy
Below Ground Oil Water Separators
Carbon Steel

our "low flow" series offeres an industrial-duty design in a compact size..

b500_(middleborough_recycling)-1_copy
Below Ground Oil Water Separators
Carbon Steel

our "low flow" series offeres an industrial-duty design in a compact size..

b500_(middleborough_recycling)-1_copy
Below Ground Oil Water Separators
Carbon Steel

our "low flow" series offeres an industrial-duty design in a compact size..

b500_(middleborough_recycling)-1_copy
Below Ground Oil Water Separators
Carbon Steel

our "low flow" series offeres an industrial-duty design in a compact size..

Plastic Oil Water Separators

Mercer International, Inc. offers a line of competitively-priced below ground oil/water separators for flows up to 100 gpm. The tanks are constructed of corrosion-proof polyethylene and can be buried up to 30" below grade. The coalescer used in this separator is a new "coalescer ball technology" that attracts passing oil to the high surface area of a plurality of polypropylene balls. The coalescer balls are harnessed in removable netted bags. The bags are able to be removed and cleaned for reuse.  Read more>>

dscf0049
Plastic Oil Water Separators
Oblong Plastic

Mercer International, Inc. offers a line of competitively-priced below ground oil/water separators...

dscf0049
Plastic Oil Water Separators
Oblong Plastic

Mercer International, Inc. offers a line of competitively-priced below ground oil/water separators...

dscf0015
Plastic Oil Water Separators
Spherical Plastic

This separator design is ideally suited for company-wide standardization. Large orders can be...

dscf0015
Plastic Oil Water Separators
Spherical Plastic

This separator design is ideally suited for company-wide standardization. Large orders can be...

Custom Oil Water Separators

The process begins by listening to the client. Even the smallest components or accessories sometimes need to be adjusted based on the requirements of the project. However, beyond the small details, Mercer has dedicated itself to solving difficult design and fabrication issues. Read more>>

b300_(nj_hamilton_trenton)-3_copy
Custom Oil Water Separators
Mobile Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

b300_(nj_hamilton_trenton)-3_copy
Custom Oil Water Separators
Sand Interceptors for Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

b300_(nj_hamilton_trenton)-3_copy
Custom Oil Water Separators
Turnkey Oil Water Separation Systems

Mercer can supply complete "turnkey" oily wastewater treatment systems to its clients. We've...

Mobile_(25gpm)-5_copy
Custom Oil Water Separators
Field Assembled Oil Water Separators

In the past we have been asked by customers to supply separators so they are able to fit in very...

Retrofitting Existing Oil Water Separators

Mercer takes pride in retrofitting existing oil/water separators that are not functioning well, whether due to poor effluent performance or constant fouling problems tied to solids build up. We can retrofit almost any rectangular OWS or CPI unit whether it is above grade or flush buried. Once the retrofit is in place Mercer typically increases efficiency and flow capacity by more than 20% and we typically can extend coalescer maintenance intervals by 2-3 times. Read more>>

retrofit_and_weir-2_copy
Retrofitting Existing Oil Water Separators
Retrofitting Existing Oil Water Separators

Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

retrofit_and_weir-1_copy-1
Retrofitting Existing Oil Water Separators
Retrofitting Existing Oil Water Separators

Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

retrofit_and_weir-1_copy-1
Retrofitting Existing Oil Water Separators
Retrofitting Existing Oil Water Separators

Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

retrofit_and_weir_copy
Retrofitting Existing Oil Water Separators
Retrofitting Existing Oil Water Separators

Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

Rental Oil Water Separators

Mercer maintains a "fleet" of rental separators ready to serve your separating needs.  We offer level alarms, automatic oil skimmers, audio/visual control panels, heaters for freeze protection and access platforms.  Read more>>

dscf0025
Rental Oil Water Separators
Rental Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

dscf0025
Rental Oil Water Separators
Rental Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

dscf0025
Rental Oil Water Separators
Rental Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

dscf0025
Rental Oil Water Separators
Rental Oil Water Separators

Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...

Free Download

This is your hero banner

Use this space to tell everyone about your best offer

thumbnail_large_oil_water

Build better website

Powerful, flexible theme to help you convert, engage, and retain more users.