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>>

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...

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

150 gpm - 300 gpm
This series bridges the gap between our "small" separators lines and our "large" separators. It is...

400 gpm - 600 gpm
As flow rates become larger, the inherent design advantages of the Multi-Pack™ coalescer become...

750 gpm - 1,000 gpm
As the flow rates become larger, the importance of dedicated settling (solids) and rising (oil)...

Over 1,000 gpm
Mercer supplies shop-fabricated units as large as can be physically shipped (up to 5,000 gpm or...

Over 4000 gpm
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Over 5,000 gpm
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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>>
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Carbon Steel
our "low flow" series offeres an industrial-duty design in a compact size..
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Carbon Steel
our "low flow" series offeres an industrial-duty design in a compact size..
-1_copy.jpg?width=1110&height=750&name=b500_(middleborough_recycling)-1_copy.jpg)
Carbon Steel
our "low flow" series offeres an industrial-duty design in a compact size..
-1_copy.jpg?width=1110&height=750&name=b500_(middleborough_recycling)-1_copy.jpg)
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>>

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

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

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

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>>
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Mobile Oil Water Separators
Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...
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Sand Interceptors for Oil Water Separators
Mercer offers integral and stand-alone "sand interceptors" ahead of our standard oil/water...
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Turnkey Oil Water Separation Systems
Mercer can supply complete "turnkey" oily wastewater treatment systems to its clients. We've...
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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>>

Retrofitting Existing Oil Water Separators
Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

Retrofitting Existing Oil Water Separators
Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

Retrofitting Existing Oil Water Separators
Mercer takes pride in retrofitting existing oil/water separators that are not functioning well,...

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>>

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

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

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

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