The nrPUR™ membrane platform is a low-energy, self-cleaning ultrafiltration (UF) system for the treatment of low-to high- strength wastewater to high-quality discharge or reuse standards. The technology is highly flexible and suitable for both domestic and industrial wastewater, from a wide range of applications that include hotels & resorts, small communities, craft breweries, wineries, dairy and other wastewater. Configured around a series of modular process building blocks, nrPUR™ easily integrates into advanced biological treatment systems (i.e. Membrane Bioreactor (MBR), MBBR, MABR, etc) to provide effective TSS & BOD5 reduction of >95% on wastewater streams from 300mg/L to 10.000 mg/L, producing safe, reuse-quality water.  When combined with our advanced polishing technologies the nrPUR™ system can treat trace micro pollutants (e.g. phosphorus, ammonia, etc) to safe discharge levels.

The nrPUR™ UF membrane racks are submerged in the water to be treated and connected to the permeate extraction system. All suspended solids and micro-organisms larger than the membrane pore size, typically less than 0.1 µm in size, will be rejected by the membranes and only clean, solids-free water will be dischargedas permeate. The permeate can then be discharged, or sent for reuse or further polishing steps.

On a continuous basis, air is bubbled from a grid of diffusers installed at the base of the nrPUR™ racks, acting as a scouring mechanism to reduce the potential for biofouling on the surface of the membrane and to enhance the mixing of the biomass within membrane tank.

A fully automated system, the nrPUR™ platform is designed to provide many years of reliable, effective and affordable treatment of water and wastewater.