Case study · Completed November 2025

Ultrafiltration membrane replacement at a refinery: 18 modules ahead of reverse osmosis

A refinery needed to replace the original ultrafiltration membranes protecting its reverse osmosis plant, in water that is high in solids and prone to scaling. We supplied 18 Eureka ultrafiltration modules, interchangeable with the original OEM modules, giving the site a straightforward and cost-effective replacement.

Eureka ultrafiltration modules lined up in a refinery treatment plant

The challenge

At this refinery, ultrafiltration is the critical barrier ahead of reverse osmosis. The feed water is high in solids and scaling, which fouls membranes quickly and wears them out. When the original OEM ultrafiltration membranes needed replacing, the site wanted an option that would fit the existing system without modification and stay cost-effective in those demanding conditions.

Ultrafiltration modules supplied

We supplied 18 Eureka ultrafiltration modules that are interchangeable with the original OEM modules. Because they fit the existing housings and connections, they dropped straight into the plant with no redesign of the system.

Row of Eureka ultrafiltration modules installed on a steel frame inside a refinery treatment plant — Eureka ultrafiltration modules installed at the refinery

The modules remove suspended solids before the water reaches the reverse osmosis membranes.

The result

A straightforward replacement for the original OEM membranes, with no changes to the existing system.
A cost-effective option in high-fouling, high-solids, high-scaling conditions.
Downstream reverse osmosis and equipment protected from solids.
More consistent system performance and lower replacement costs.

At a glance

Site

Refinery

Supplied

18 Eureka UF modules

Replaces

Original OEM modules

Role

Pre-treatment ahead of RO

Feed water

High solids, high scaling

Completed