design center

What We Provide

Oil Water Separation Solutions for Every Application

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Solutions By Configuration

Proven Solutions for Every Separation Challenge.

Mercer doesn’t sell equipment by the piece; we deliver complete systems that restore performance, extend service life, and simplify maintenance. Explore our core product families - each engineered for long-term ROI and peace of mind.

Above Ground Oil Water Separators

API 421 compliant, custom-built for your process.

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Below Ground Oil Water Separators

Steel, Concrete, plastic.

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Retrofit & Upgrade Solutions

Bring aging systems back to spec without replacement.

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Specialty Separation / Filtration Equipment

Condition and complement our trusted technology.

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Piloting/Rental Units

Proof of performance skids, lease to own, and temporary systems

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Separation Services

Free site audits, engineering/design, testing, cleaning, and Systems as a Service


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ENGINEERED FOR PERFORMANCE

More Than Equipment. Complete Separation Support.

From field validation to performance testing, Mercer supports every phase of your separation system lifecycle. Whether you need on-site audits, pilot testing, engineering design, or after-sales service, our team works directly with your operating conditions — not assumptions — to ensure long-term performance and compliance.

LIFECYCLE SUPPORT

Tested. Validated. Supported for the Long Term.

Mercer delivers more than separation equipment. We provide engineering validation, field audits, pilot testing, lifecycle support, and performance guarantees to ensure your system works under real operating conditions — not just nominal flow rates.

Test For Free, Then We Guarantee

Submit a representative sample and we’ll test it under controlled conditions to validate separation performance. If we recommend a system, it’s backed by data — not assumptions.

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Free Site Audits

Our engineering team evaluates your existing system, operating constraints, and discharge requirements to identify performance gaps, risk exposure, and measurable ROI opportunities before you invest.

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SAAS (Separation as a Service)

Wraps equipment, monitoring, cleaning, and support into one monthly package.

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Virtual Lunch & Learn

Educational sessions for engineers and operations teams covering oil-water separation fundamentals, system design considerations, and real-world case studies.

Engineering and Design

Develop the process and integration details that make the solution work.

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After Sales Support & Training

Hands-on commissioning support, operator training, troubleshooting, and long-term technical assistance to protect performance and compliance.

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Maintenance Contracts and Warranty Programs, Swap Outs Cleaning, Repair, and Updating

Structured service programs that extend system life, reduce unplanned downtime, and maintain separation efficiency under changing operating conditions.

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Eco H20 Rapid Response

Emergency response support for oil-water separation issues, compliance risks, and unexpected system failures. Fast technical intervention when operations cannot wait.

Talk to an Engineer

Engineered From Your Data. Delivered in Hours.

We design around your worst-case wastewater, generate a custom spec and drawing on the spot, and issue a quotation the same day. Real influent. Real math. No generic sizing.

Build It From My Data

Frequently Asked Questions

Q.

Why doesn't Mercer recommend equipment first?

A.

Because equipment should never drive the solution.

Every wastewater stream has unique characteristics, operating conditions, and treatment goals. Recommending equipment before understanding those variables often leads to oversized systems, unnecessary operating costs, or performance that falls short of expectations.

Mercer begins by understanding your water, your process, and your objectives—then recommends the technologies that will deliver the best long-term results.

Q.

Why does Mercer focus on wastewater physics instead of products?

A.

Successful treatment is based on understanding how contaminants behave—not simply selecting equipment.

Free oil separates differently than emulsified oil. Suspended solids behave differently than dissolved contaminants. Water chemistry influences every downstream process.

By understanding the physics behind your wastewater, Mercer can build treatment strategies that work together as an integrated system rather than relying on a single piece of equipment to solve every problem.

Q.

Can Mercer work with equipment I already have?

A.

Absolutely.

Many facilities already have treatment infrastructure that still has years of useful life remaining. Mercer frequently upgrades existing systems with new separator internals, polishing technologies, suspended solids capture, water recovery solutions, and performance enhancements rather than recommending complete replacement.

Our objective is to maximize the value of your existing investment whenever practical.

Q.

What if Mercer isn't the right solution?

A.

We’ll tell you.

Our goal is to solve wastewater challenges—not sell equipment that doesn’t fit the application.

If another technology, process, or treatment approach will better meet your operational or regulatory requirements, we’ll explain why. Long-term partnerships are built on technical honesty and engineering integrity.

Q.

Why does Mercer recommend testing before major equipment decisions?

A.

Because real wastewater rarely behaves exactly like laboratory samples or design assumptions.

Pilot testing and wastewater evaluation provide valuable performance data before major capital investments are made. Testing reduces uncertainty, confirms treatment performance, and helps optimize system design based on actual operating conditions.

When practical, Mercer recommends validating assumptions before final equipment selection.

Q.

What's the difference between buying an oil-water separator and building a treatment strategy?

A.

An oil-water separator is only one stage of treatment.

Many facilities also need suspended solids removal, chemistry optimization, final clarification, water recovery, hydrocarbon polishing, or regulatory compliance support to achieve their overall objectives.

Mercer’s Integrated Treatment Ecosystem™ brings these technologies together into a coordinated treatment strategy where each stage prepares the water for the next—improving efficiency, reducing operating costs, and creating more reliable long-term performance.

Q.

Does Mercer provide engineering support before a project begins?

A.

Yes.

Mercer works alongside owners, engineers, consultants, and EPC firms during the planning phase to review applications, evaluate wastewater characteristics, recommend treatment strategies, assist with equipment sizing, and develop practical solutions before procurement begins.

The earlier Mercer becomes involved, the greater the opportunity to optimize system performance and lifecycle cost.

Q.

Why does Mercer partner with other treatment technology companies?

A.

No single technology can solve every wastewater challenge.

Mercer carefully selects complementary technologies that strengthen different stages of the treatment process—from oil separation and solids capture to chemistry optimization, final clarification, and water recovery.

This partner ecosystem allows Mercer to deliver complete solutions while remaining focused on proven technologies that perform best in their specific role.

Q.

How does Mercer help reduce long-term operating costs?

A.

The lowest purchase price rarely delivers the lowest lifetime cost.

Mercer designs systems that minimize maintenance, reduce chemical consumption, improve equipment reliability, recover valuable process water, and extend the life of downstream treatment assets.

By optimizing the entire treatment process—not just one component—facilities often realize lower operating costs, improved uptime, and greater return on investment over the life of the system.

Q.

What does "Integrated Treatment Ecosystem™" actually mean?

A.

It means every stage of treatment is designed to support the next.

Rather than viewing separation, polishing, solids removal, chemistry management, and water recovery as independent processes, Mercer integrates them into a coordinated treatment strategy. Each technology performs a specific role while preparing the water for the next stage, creating a system that is more efficient, more reliable, and easier to optimize than a collection of standalone products.