Membrane purity.
Sand-filter economics.

"Membrane filtration separation qualities, with superior flux rates, at relatively low pressure — and no excursions associated with irreversible fouling. It will never go down."

Engineering Brief · Blue Quest Filtration Technologies

A self-renewing hydrate gel.

A thin gel layer is deposited continuously on a robust substrate as feed water flows through. The gel acts as a self-renewing nano-filter — separation comparable to ultrafiltration, throughput closer to a sand filter. When fouling raises trans-membrane pressure, a 15-60 second backwash sheds the loaded gel and operation resumes at full flux. No irreversible fouling.

Self-renewing

Active separation layer is replaceable, not embedded. The substrate doesn't foul; chemistry is restored at the surface every cycle.

Gravity-class power

1.8 bar operating pressure. Combined Purus + RO specific energy 0.8-1.5 kWh/m³, against 3-5 kWh/m³ for standalone RO.

Field-tunable

Cut-off selectable between 10 nm and 5 µm by adjusting gel layer thickness. One platform serves drinking-water polishing through to mining process water.

The Purus series.

Three modular configurations, one technology platform. Identical gel chemistry; capacity scaled by membrane area and pressure-vessel count.

SMALL · FIXED

Purus 50.2

~58 kL/day · 5 m² · 2 × 2 × 2 m

Six-star buildings, HVAC, water harvesting, micro-breweries, greywater. Pre-filtration or discharge barrier.

View specs →

MEDIUM · FIXED

Purus 100.5

~100 m³/day · 10 m² · skid mounted

Small dams, food lots, side-stream industrial water reuse. The flagship industrial workhorse.

View specs →

CONTAINERISED · MOBILE

Purus 100.20

~34 ML/30d · 96 m² · 20 ft container

Mining, irrigation, aquaculture, vertical farms, remote sites where reliable water and limited power coincide.

View specs →

Independently validated. On real water.

Two production trials with blue-chip Australian operators — every metric independently verified by ALS Laboratories.

Engineered in Brisbane.

Our R&D, engineering, hydrate-gel chemistry, system assembly and commissioning are all based at our facility in Windsor, Brisbane. Our team and partners deliver and service Purus systems for customers across Australia.

Built for the toughest water duties.

From manufacturing chiller circuits to recreational facilities to rural rain-harvesting — Purus replaces the chemical and power-heavy treatment trains conventionally used across these sectors.

Manufacturing & industrial

Cooling circuits, process water, side-stream reuse. Restore head pressure, eliminate biological fouling, and slash chemical OPEX — often in the same install.

See Evolve case study →

Energy & power

RO pre-treatment for cooling and process water. Multi-pass system extends downstream membrane life and reduces fouling pressure differential.

See CS Energy case study →

Pools & recreational

Chemical-free disinfection for water-based recreational facilities. Smaller plant footprint, lower CAPEX at recreational scale.

See Surf Lakes case study →

Rain harvesting

Catchment-fed potable and process water for remote, rural and regional operations. Chemical-free pathogen removal at solar-compatible pressure.

See more →