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Table 4

Effect of the ozonation time on the removal of phenol and COD concentration

Time/min01530
Phenol concentration (×10−3 g·L−125 4.02 1.09 
Removal efficiency of phenol (%) 83.91 95.65 
COD concentration (×10−3 g·L−1128 36.00 5.58 
Removal efficiency of COD (%) 72.81 95.64 
Time/min01530
Phenol concentration (×10−3 g·L−125 4.02 1.09 
Removal efficiency of phenol (%) 83.91 95.65 
COD concentration (×10−3 g·L−1128 36.00 5.58 
Removal efficiency of COD (%) 72.81 95.64 
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