Membrane Bioreactor (MBR) Systems in Lethbridge, Alberta

A membrane bioreactor combines two unit processes in one tank: biological treatment that consumes dissolved organics, and ultrafiltration membranes that physically retain the biomass instead of relying on a clarifier to settle it. The result is effluent that is essentially free of suspended solids and most bacteria, clean enough for reuse in washdown or cooling service, or for discharge to sensitive receiving waters.

Higher biomass, smaller footprint

Because the membranes decouple solids retention from settling, an MBR runs at much higher biomass concentrations than conventional activated sludge. That is where the footprint advantage comes from: 50 to 70 percent smaller than a conventional plant treating the same load, which matters when the only available space is inside an existing building. It also explains the stability. High biomass inventory absorbs the load swings that industrial production schedules create, so performance holds through washdown peaks and weekend shutdowns. The strongest fits are food and beverage plants, landfill leachate and high-BOD process water, and any site where reuse or a strict discharge limit justifies the premium.

What our MBR packages include

We supply MBR packages with submerged flat-sheet or hollow-fibre membranes, automated CIP cleaning systems, and the instrumentation to run unattended between operator rounds. The Canadian search interest is real; the membrane bioreactor cluster draws about 1,000 searches a month, the highest of any equipment family we track. But interest is not a specification, so here is the honest trade-off we walk every buyer through. Capital cost is higher than MBBR or conventional treatment because of the membrane modules. Energy use is higher too, since air scouring to keep membranes clean is a significant load. Membranes foul, need routine relaxation and periodic chemical cleaning, and are replaced roughly once a decade, a cost that belongs in your budget from day one. Fats, oils and abrasive solids shorten membrane life, so pre-treatment with fine screening at 1 to 3 mm and FOG removal ahead of the tank is not optional.

When an MBR is the right call

Where footprint is tight, limits are strict, or reuse pays back the premium, an MBR is the right call. Where none of those apply, we will usually recommend MBBR or conventional treatment instead. Send your flow rate, a recent lab analysis and your discharge destination, and a process engineer returns a sized configuration, budget price and delivery timeline for your site, anywhere in Canada. Where the effluent analysis is incomplete, we will specify the sampling program first, because an MBR sized on guesswork wastes exactly the capital premium that makes the technology worth buying.