TECHNOLOGY · PRE-COAT DYNAMIC MEMBRANE
at just 1.8 bar. Roughly 10× the flux of conventional UF, at one-third the operating pressure.
A pre-coat dynamic membrane filtration platform built around a self-renewing hydrate gel. Patented chemistry invented at one of Queensland's leading universities, published in Nature, exclusively licensed to Blue Quest, and engineered into modular plant in Brisbane.
A thin, dynamic gel layer is deposited continuously on a robust substrate as feed water enters the system. The gel is non-hazardous, water-treatment-grade chemistry already approved across the industry.
The gel acts as a self-renewing nano-filter with an effective cut-off down to 10 nm — equivalent to the separation performance of a standard ultrafiltration membrane, but with throughput characteristics closer to a sand filter.
When fouling triggers a rise in trans-membrane pressure (TMP), a short backwash cycle of 15–60 seconds sheds the loaded gel. Backwash volumes are low and can go to drain — no caustic, acid or biocide CIP cycles.
The substrate is re-coated with fresh gel and operation resumes at full flux. Because the active separation layer is replaceable rather than embedded in a permanent membrane, the system avoids the irreversible-fouling failure mode that drives the operating cost of conventional UF and RO plants.
A single platform serves duty cycles ranging from drinking-water polishing to mining process water. Cut-off is selectable by adjusting gel layer thickness and pre-treatment configuration.
BLUE QUEST SEPARATION RANGE · 10 NM – 5 µM
Across every market segment, Blue Quest competes with an incumbent — and wins on cost of ownership, risk of ownership, or both.
| Challenge | RO only | UF only | Conventional sand | Purus + RO polishing |
|---|---|---|---|---|
| Membrane fouling | Weekly CIP | Frequent CIP | Limited separation | CIP every 3-12 months |
| Energy | 3-5 kWh/m³ | 0.8-1.5 kWh/m³ | Low | 0.8-1.5 kWh/m³ |
| Microbial safety | Breakthrough possible | Possible breakthrough | None | 99.9999% upstream |
| Backwash water loss | High flushing | Moderate | High | 1-5 short cycles/day |
| Membrane lifespan | 1-3 yrs | 3-5 yrs | n/a | Extended 2-5× |
| Customer ROI | 3-5 yrs | 2-4 yrs | — | <12 months typical |
Exclusively licensed to Blue Quest from a leading Queensland university. Underlying science published in Nature.
Held by Blue Quest Group Pty Ltd. The Purus product family is the commercial expression.
Gel formulation never leaves the Brisbane hub. Protects the recurring chemistry annuity regardless of where hardware is assembled.
Run our 90-second ROI calculator or request a Water Challenge.