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  Indian J Med Microbiol
 

Figure 1: Effect of solution pH on chemical oxygen demand removal in the ferro-sonication process (reaction time: 60 min, input power: 120 W, and ferrous sulfate dosage 4 mmol)

Figure 1: Effect of solution pH on chemical oxygen demand removal in the ferro-sonication process (reaction time: 60 min, input power: 120 W, and ferrous sulfate dosage 4 mmol)