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Oil Water Separators
Sized to your flow rate and effluent. Request a quote for a sized proposal.
We supply
Industrial Wastewater Treatment Systems- Oil Water Separators
Dissolved Air Flotation (DAF) Systems
Membrane Bioreactor (MBR) Systems
MBBR Systems (Moving Bed Biofilm Reactors)
Lamella Clarifiers
Sludge Dewatering Screw Presses
Dewatering Centrifuges
Industrial Reverse Osmosis Systems
Wastewater Evaporators & ZLD Systems
Belt Filter Presses
Coalescing Filters
Industrial Bag & Cartridge Filtration
By quote
Oil Water Separators Overview
Every vehicle wash bay, machine shop, fuel depot and refinery in Canada faces the same line item in its sewer-use bylaw: oil and grease, typically capped somewhere between 15 and 100 mg/L depending on the municipality. An oil water separator is the standard way to meet that cap. It exploits the density difference between oil and water: flow slows inside the vessel, droplets rise and coalesce into a surface layer that gets skimmed, and cleaned water leaves from below.
Two designs, one choice
The choice that matters is between the two main designs. A gravity API separator is a long rectangular basin sized to Stokes' law, built to let droplets of roughly 150 microns and larger rise out. It is robust, tolerant of solids and easy to maintain, which is why refineries still standardize on it. A coalescing-plate separator adds inclined plate packs or oleophilic media that intercept far smaller droplets, down to about 20 to 60 microns, so it reaches better effluent quality in a fraction of the footprint. Our coalescing configurations hold effluent under 10 ppm oil and grease in free-oil service, and many sites pair an API basin with a coalescing polishing stage.
Above-grade, below-grade and API 421
We quote both, in above-grade and below-grade tanks, with API 421 compliant configurations where the specification calls for it. Options include oil-stop valves that close automatically when the oil layer reaches capacity, high-level alarms, and sludge baffles for streams that carry grit. What a separator will not do is remove chemically emulsified or dissolved oil; if your stream carries surfactants from a wash process, we will tell you plainly that you need chemical treatment or flotation ahead of the separator, because selling you a tank that cannot meet your limit helps neither of us.
Sizing from your real flows
Sizing depends on flow rate, droplet size distribution and oil type, which is why the search term oil water separator, at 480 searches a month in Canada, so often ends in a mis-sized purchase from a catalogue. Send us your flow, a recent lab analysis or a description of the process, and your discharge destination. We return a sized configuration, budget price and delivery timeline, reviewed by a process engineer before it reaches you, for any site in Canada. Installation support and commissioning are quoted per project, and replacement plate packs and media remain available for the life of the vessel. Below-grade installations ship with traffic-rated covers where the separator sits in a drive lane, and we keep skimmer parts and alarm components on the shelf so a maintenance call does not become a compliance gap.
Oil Water Separators: at a glance
| Equipment | Oil Water Separators |
|---|---|
| Best for | |
| Typical price range | By quote |
| Service area | Canada |
Key takeaways
- Oil Water Separators is a fit when your effluent matches this profile:
- Budget guidance: By quote, depending on flow rate and effluent characterization.
- Included in scope: Coalescing plate-pack design
Oil Water Separators Features & Specifications
Coalescing plate-pack design
API 421 compliant configurations
Above- and below-grade tanks
Oil-stop valve and alarm options
Effluent under 10 ppm oil & grease
FAQ
Frequently Asked Questions
Everything you need to know about our services.
What is Oil Water Separators used for?
Every vehicle wash bay, machine shop, fuel depot and refinery in Canada faces the same line item in its sewer-use bylaw: oil and grease, typically capped somewhere between 15 and 100 mg/L depending on the municipality. An oil water separator is the standard way to meet that cap.
What is included with Oil Water Separators?
Each configuration covers Coalescing plate-pack design, API 421 compliant configurations, Above- and below-grade tanks, Oil-stop valve and alarm options and Effluent under 10 ppm oil & grease. Scope is confirmed in the written proposal before fabrication starts.
How much does Oil Water Separators cost in Canada?
Budget pricing runs By quote. The final number depends on your flow rate, contaminant profile and the discharge limits in your permit or municipal sewer by-law, so we quote against a lab analysis rather than a catalogue page.
What other equipment works alongside Oil Water Separators?
Most treatment trains pair oil water separators with upstream or downstream stages. From our catalogue that most often means Industrial Wastewater Treatment Systems, Dissolved Air Flotation (DAF) Systems and Membrane Bioreactor (MBR) Systems. We size the whole train together, so the stages are matched on flow and loading rather than bought piecemeal.
Do you deliver and commission Oil Water Separators across Canada?
Yes. Industrial Wastewater Canada is a service-area business covering Canada: equipment is sized and quoted per project, then shipped and commissioned at your site in whichever province you operate.
Send the flow rate. Get the system.
Flow, contaminants, discharge limit. An engineer replies with a sized treatment train and a quote — no obligation.