Why Your Ferric Chloride Dose Keeps Climbing: The Sponge Mechanism Behind Phosphorus Removal, and How to Size It
Ferric chloride removes phosphorus from wastewater mainly by adsorption onto hydrous ferric oxide, which is why the iron-to-phosphorus dose climbs from about 1:1 above 1 mg/L effluent P to 2:1 or more...