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

Table 3

DO and COD as a function of Ozone/Oxygen injection rate.

O3 loading rate	DO	COD	% COD reduced
(g/min/liter)	(mg/L)	(mg/L)
No O2 or O3	0.14	5907
0.53 O2	67.1	5440	7.9
0.053 O3	61.6	4970	15.8
0.105 O3	58.5	5043	14.6
0.158 O3	59.9	5040	14.7
0.212 O3	62.0	5053	14.5
0.318 O3	68.4	5033	14.8