Published calculation tools, technical writing, and a few long-running R&D projects in marine technology.
A sizing calculator for dissolved air flotation: air-to-solids ratio, recycle flow, flotation area and energy use, with seventeen water-type scenarios. Every parameter carries its source and source type. Built and published by Polarlys Innovation AS.
A cost and sizing calculator for nitrogen removal at Norwegian municipal treatment plants, based on Norsk Vann 256/2020 and recent Norwegian cost data, with the model checked against four built projects. Built and published by Polarlys Innovation AS.
Dosing calculators for iron chloride, aluminium/PAC, polymer, caustic soda and lime, with sizing for tanks, dosing pumps, piping and mixing. Built and published by Polarlys Innovation AS.
An engineering design platform for recirculating aquaculture systems, covering process calculations, P&ID generation, equipment schedules and feasibility reporting. Created by our founder and released under AGPL v3.
How ultrafiltration, nanofiltration and reverse osmosis behave in Norwegian drinking water treatment — hygienic barrier, colour and humus removal, cold-water flux, fouling and concentrate handling. Built and published by Polarlys Innovation AS.
An introduction to the moving bed biofilm reactor: how the process works, what the biofilm carriers do, and how it compares with IFAS and MBR. Written and published by Polarlys Innovation AS.
A practical comparison of methods for quantifying biofilm on membranes, on carriers and in biofilters — what each method sees, what it costs, and when to choose it. Written and published by Polarlys Innovation AS.
A look back at three of our own biofilm-MBR studies from 2010–2012: why removing suspended solids did not reduce membrane fouling, what the colloidal fraction had to do with it, and what the original work over-claimed.
Ph.D. in Water and Wastewater Engineering from NTNU (Norwegian University of Science and Technology), Trondheim. More than 25 years of engineering practice in water and environmental systems, with peer-reviewed research spanning membrane bioreactors, biofouling, shipboard wastewater treatment, and recirculating aquaculture systems.
View publicationsOur name is inspired by the polar lights — polarlys — a northern phenomenon of brilliance and wonder that reflects our commitment to illuminating paths forward.