Actually, they are using a magnetic removal technology right now - a "Ferrifilter" from SG Frantz and co. THis uses magnetic plates that have periodically to be cleaned off and reinserted - very manual!
Published by Peter Williams, Founder and Principal at Peter Williams Solutions LLC
Actually, they are using a magnetic removal technology right now - a "Ferrifilter" from SG Frantz and co. THis uses magnetic plates that have periodically to be cleaned off and reinserted - very manual!