New paper explores the roles of pH and dissolved silicate on the adsorption and desorption of phosphate in the presence of ferric iron oxyhydroxides
Phosphorus (P), in the form of aqueous phosphate, is an essential nutrient for the growth of plants and algae. Because it often limits or colimits primary production in freshwater and nearshore marine systems, phosphate enrichment can result in eutrophication and algal blooms. A major process driving phosphate enrichment is the desorption of phosphate from mineral surfaces, in particular those of ferric iron oxyhydroxides.