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Containerized membrane water-treatment system deployed on an industrial site.

Solution · Water & Wastewater

Water & Wastewater Treatment

When a feed is too saline, too fouling, or too complex for reverse osmosis, Petro Sep recovers the water anyway. Our vacuum membrane distillation and membrane distillation platforms treat produced water, frac flowback, landfill leachate, high-salinity industrial effluent, and RO reject, recovering clean water and concentrating the reject toward zero liquid discharge. Skid-mounted, code-stamped, and engineered to retrofit into existing plants.

Readiness: Proven, deployed

What you get

Outcomes on this vertical.

Water recovery on hard feeds
Up to 95%
Field-measured on produced water, leachate, and high-salinity effluent that pin RO on energy and fouling.
TDS handled
Up to 25%
Far beyond the 6 to 8% practical limit of reverse osmosis.
Recovered-water purity
<10 ppm TDS
Distillate clean enough for direct reuse or compliant discharge.

Built for the streams RO rejects

Reverse osmosis stalls on high salinity, silica, and organics. Vacuum membrane distillation and membrane distillation are thermally driven, so they keep recovering water where RO cannot: up to roughly 25 percent TDS, through fouling loads, at 60 to 85 degrees Celsius rather than a full boil. The result is high water recovery, a distillate below 10 ppm TDS, and a concentrated reject that shrinks disposal volume and sets up zero liquid discharge. We build the system as a skid or packaged plant that retrofits into the existing treatment train.

Frequently asked

Common questions.

How is this different from reverse osmosis?
RO is efficient at low salinity but stalls around 6 to 8 percent TDS and fouls on complex feeds. Our membrane distillation platforms are thermally driven and keep recovering water up to roughly 25 percent TDS, so they treat the streams RO rejects.
Can it reach zero liquid discharge?
Yes, paired with a thermal or crystallization tail. The membrane stage does the efficient bulk recovery; a final stage takes the concentrate to a solid where the site's limits require it.

Interested in Water & Wastewater Treatment?
Let us scope it.

License the solution or deploy it as a turnkey plant. Either way, send the stream or the spec and we will tell you, honestly, what is proven and what is still in development.