Fig. 2. Temporal changes in metolachlor, Al, and Fe(II) concentrations and pH following treatment with Fe⁰ + Al₂(SO₄)₃ under aerobic and anaerobic conditions. Experimental protocol included 12.5 g Fe⁰, 0.5 g Al₂(SO₄)₃, and 100 mL of metolachlor solution (400 mg L^-1).

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