Polyurethane membrane tube diffuser for fine bubble aeration
Pre-PUR® Norres Umwelttechnik

PRO2 AIR membrane tube diffusers – quality products from the NORRES stable – are mainly used for intermittent, fine-bubble, compressed air aeration (nitrification / denitrification). Our membrane material exhibits very good resistance to municipal wastewater according to the latest version of the DWA-M 115 Advisory Leaflet. Please ask NORRES for advice before using it in industrial wastewater.

• Fine-bubble, compressed air aeration

• Oxygenation and circulation in submerged fixed-bed and membrane bioreactors

• Mixing of aeration tanks (municipal and industrial)

• Grit trap aeration

• Aeration of collecting and intermediate storage tanks

• Restoration (aeration) of rivers and lakes

• Aquaculture (fish farming)

Added value generated by PRO2 AIR Pre-PUR®

• ROI in approx. 6 months in contrast to conventional diffusers

• High oxygen transfer efficiency (OTE) up to 5.5 kg/kWh with underdamped population density

• Excellent value for money

• Excellent mechanical and chemical properties compared to silicone and EPDM