JEQ -- Dayton and Basta 34 (3): 1112 Figure IG6

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Fig. 6. Relationship between final Langmuir phosphorus adsorption maximum (final P_max, <150 µm and 6 d equilibration) and (A) acid ammonium oxalate–extractable aluminum (Al_ox, 100:1 to solution to water treatment residual [WTR] ratio) and (B) acid ammonium oxalate–extractable aluminum + iron (Al_ox + Fe_ox), 100:1 to solution to WTR ratio for 18 Al-based WTRs.