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Industrial Wastewater Canada sizes and supplies oil water separators for plants in Quebec City, Quebec. Local demand is driven by food processing, pulp & paper, defence, electronics, discharging under Quebec City's sewer-use rules toward St. Lawrence River. 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.
Quebec City's industrial base is easy to underestimate from outside: food processors in the Saint-Roch and Lebourgneuf parks, a pulp and paper legacy, defence electronics and a growing optics-photonics cluster, all inside a provincial capital of 549,000 people on the St. Lawrence. What sets the market apart is procurement culture. Provincial capital; MELCCFP oversight, strong FR-language procurement requirement. That is the regulatory backdrop for oil Water Separators in Quebec City: equipment gets sized against the local limits on the route to St. Lawrence River, not against a national average.
Location
Quebec City, Quebec
Population 549K
Receiving Water
St. Lawrence River
Pricing
Sized & quoted per project
Quebec City is the MELCCFP's home town, and industrial wastewater projects here move at the speed of your French-language engineering file. In Quebec City, the plants asking about oil Water Separators are mostly in food processing, pulp & paper, defence and electronics, and each of those sectors puts a different load on a treatment train. Provincial capital; MELCCFP oversight, strong FR-language procurement requirement. Direct discharge toward St. Lawrence River instead requires a ministerial authorization under section 22 of Quebec's Environment Quality Act. Quebec City is big enough that the sewer utility samples industrial connections routinely, so an out-of-spec effluent gets noticed within a billing cycle. Most Quebec City projects reach us after a sampling result or a bylaw notice, so the first step is matching equipment to the parameter that triggered it.
Everything you need to know about our services.
Yes. Industrial Wastewater Canada sizes and supplies oil Water Separators for plants across Quebec City and the surrounding region. Most local demand comes from food processing, pulp & paper, defence, electronics. Send a quote request with your flow rate and effluent type and a sized proposal follows.
Provincial capital; MELCCFP oversight, strong FR-language procurement requirement. This is the seat of the MELCCFP itself, and public and para-public buyers here expect fully French-language engineering deliverables, from P&IDs to operator manuals. Selling treatment systems in the regulator's home town A pretreatment project in Quebec City moves faster when the attestation file, the commissioning report and the operator training all arrive in French the first time, because reviewers here read them closely. Plants discharging to the municipal sewer answer to that regime; anything released directly toward St. Lawrence River 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 Quebec City's local limits. A processor in a city of 549K with food processing 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. Technically the work is familiar: high-strength food effluent in the 2,000 to 5,000 mg/L BOD range, paper-machine whitewater, and institutional labs. Commercially, the differentiator is a supplier who can walk into a MELCCFP meeting and carry the conversation without a translator. Payback in Quebec City 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.