Recovered mine drainage passive treatment residuals address legacy sediment pollution: A field mesocosm study at Grand Lake o' the Cherokees, Oklahoma

Phosphorus adsorption from aqueous solutions using different types of cement: kinetics, isotherms, and mechanisms

“…8 In contrast, industrial wastes and by-products like steel slag, bauxite residue, mine drainage residuals, and red mud demonstrate superior P adsorption capacity owing to the presence of aluminum, iron, and calcium salts. [9][10][11][12][13][14] However, the efficacy and potential impacts on ecological systems of employing these adsorbents for P adsorption depend signicantly on factors such as organic matter, alkalinity, pH, coexisting ions, and raw materials. 15,16 A recent research using mine drainage residuals for internal P control has indicated that only negligible amounts of trace metals are introduced into the water column and sediments.…”

“…15,16 A recent research using mine drainage residuals for internal P control has indicated that only negligible amounts of trace metals are introduced into the water column and sediments. 14 Manufactured materials like lanthanum-containing materials can effectively remove P from wastewater and eutrophic water bodies due to their robust binding with phosphate, leading to the formation of insoluble and redox-stable minerals. 16 Nevertheless, the potential impacts of these manufactured materials on ecosystems, particularly their potential toxicity to aquatic organisms at low pH levels (<7), warrant careful consideration; furthermore, their manufacturing process is relatively complex and costly.…”