Application of Ozone and Oxygen to Reduce Chemical Oxygen Demand and Hydrogen Sulfide from a Recovered Paper Processing Plant

Table 1

Pre- and post-O₂/O₃ injection measurements (O₃ loading rate of 0.053 g/min/liter water and O₂ loading rate of 0.53 g/min/liter water).

	Temperature	pH	DO	COD	Standard deviation
	(°C)		(mg/L)	(mg/L)
Pre injection	40.6	7.47	0.12	5244	352
Postinjection	40.8	7.31	18.56	4422	256