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Industrial Wastewater Canada sizes and supplies oil water separators for plants in Saguenay, Quebec. Local demand is driven by aluminum smelting, pulp & paper, forestry, agri-food, discharging under Saguenay's sewer-use rules toward Rivière Saguenay. Quote requests with flow rate and effluent type get a sized proposal.

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.
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.
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 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.
Saguenay's economy runs on aluminum and wood. The Rio Tinto smelting complex and its supplier network, together with pulp and paper operations and a regional agri-food base, define industry in this city of 145,000 on the fjord of the Rivière Saguenay, one of the few places in the world where heavy industry discharges toward a marine-protected fjord ecosystem. Smelter chemistry, fjord standards Aluminum smelting produces wastewater unlike anything else in Canadian industry: spent pot liner leachate with cyanide and fluoride, caustic bath solutions, scrubber blowdown carrying fluorides and PAHs. Rio Tinto aluminum complex; spent pot liner and caustic effluent expertise valued. That is the regulatory backdrop for oil Water Separators in Saguenay: equipment gets sized against the local limits on the route to Rivière Saguenay, not against a national average.
Location
Saguenay, Quebec
Population 145K
Receiving Water
Rivière Saguenay
Pricing
Sized & quoted per project
Saguenay treats smelter streams, spent pot liner, fluorides, PAHs, to standards protective of a beluga-habitat fjord, the most distinctive industrial wastewater brief in Quebec. In Saguenay, the plants asking about oil Water Separators are mostly in aluminum smelting, pulp & paper, forestry and agri-food, and each of those sectors puts a different load on a treatment train. Rio Tinto aluminum complex; spent pot liner and caustic effluent expertise valued. Direct discharge toward Rivière Saguenay instead requires a ministerial authorization under section 22 of Quebec's Environment Quality Act. Saguenay's municipal plant has limited spare capacity, so a single overloaded industrial connection shows up quickly in its intake numbers. Projects in Saguenay tend to be one-of-a-kind rather than repeat configurations, which is exactly the case where sizing from measured effluent data matters most.
Everything you need to know about our services.
Yes. Industrial Wastewater Canada sizes and supplies oil Water Separators for plants across Saguenay and the surrounding region. Most local demand comes from aluminum smelting, pulp & paper, forestry, agri-food. Send a quote request with your flow rate and effluent type and a sized proposal follows.
Rio Tinto aluminum complex; spent pot liner and caustic effluent expertise valued. Managing those streams to standards protective of a fjord with beluga habitat downstream demands specialized chemistry, fluoride precipitation, cyanide destruction, careful PAH capture, and documentation that satisfies Quebec's MELCCFP attestation regime in French. Paper mills add their own high-volume organic loads. Plants discharging to the municipal sewer answer to that regime; anything released directly toward Rivière Saguenay needs a ministerial authorization under section 22 of Quebec's Environment Quality Act. We size equipment against whichever limit governs your outfall.
From your numbers, not from the city's. We start with measured flow and effluent characterization, then check the result against Saguenay's local limits. A processor in a city of 145K with aluminum smelting as the dominant sector rarely has the same loading profile as its neighbours, so treatability data drives the selection.
There is no list price; every system is sized and quoted per project. The economics are local, though. The regional talent pool is deep after generations of process industry, and suppliers who respect that, arriving with substance instead of generic brochures, find Saguenay a loyal market. Payback in Saguenay is usually calculated against those surcharge and compliance costs, and the quote spells that comparison out.
Flow, contaminants, discharge limit. An engineer replies with a sized treatment train and a quote — no obligation.