Figure 3 | Scientific Reports

Figure 3

From: Pilot-scale study on catalytic ozonation of bio-treated dyeing and finishing wastewater using recycled waste iron shavings as a catalyst

Figure 3The alternative text for this image may have been generated using AI.

Effect of HRT on COD reduction during catalytic ozonation under continuous mode. Experimental conditions: (a) without addition of PAM; ozone dosage = 12.2 g-O3/min (ozone concentration = 120 mg/L; ozone flow rate = 6.08 m3/h); (b) with addition of 2 mg/L PAM; ozone dosage = 10.2 g-O3/min (ozone concentration = 120 mg/L; ozone flow rate = 5.11 m3/h).

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