Aeration is typically the largest single energy use in a biological treatment plant. North Current develops technology for controlling it, built to retrofit into existing plants, and makes it available through licensing.
Water treatment for greenhouses and food plants: we supply, install and service reverse osmosis and ultrafiltration systems.
Water treatment →A patent-pending control method for the aeration stage of municipal and industrial wastewater treatment.
The technology is intended to be added to an existing plant, not to require a new one.
We license the technology to aeration equipment manufacturers and plant owners, and welcome discussions about evaluating it on a working plant.
North Current’s portfolio covers process technologies developed by our team, each the subject of a pending patent application and available for licence. Aeration control, the lead technology, is pending in the United States and Canada. Further applications are in preparation.
45–75%
of a wastewater treatment plant’s energy costs go to aeration, the most energy-intensive step in treatment.
Rosso, Larson & Stenstrom, Water Science & Technology 57(7), 2008
Why aeration dominates the bill →Ontario’s Retrofit program pays up to half of eligible costs, if the application goes in before the owner commits to buy.
For pumps and blowers that run most of the year, energy and maintenance usually outweigh the price on the bid sheet.
Keeping a plant legally staffed is harder than paying for it. Ontario’s licensing rules decide who may run it.
Equipment manufacturers, plant owners and operators can reach us to discuss licensing or an evaluation. For general enquiries, use the details below.