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Filtration Downflow Velocity Variation
Experiment 1: 6 mm/s downflow velocity, 5 NTU influent, 10 inch foam depth, 1.5 mg/L alum dose
Experiment 2: 12 mm/s downflow velocity, 5 NTU influent, 10 inch foam depth, 1.5 mg/L alum dose
Experiment 3: 20 mm/s downflow velocity, 5 NTU influent, 10 inch foam depth, 1.5 mg/L alum dose
