Using fenton reagent to further process papermaking wastewater was studied in the paper.Main factors affacting the removal rate of CODCr and color,such as pH value,the reaction time,the amount of FeSO4 and the amount of H2O2 were discussed to achieve excellent effect.Results showed that the removal rate of color reached 74%,when pH is 5.00,amount of FeSO4 is 400 mg/L,amount of H2O2 is 200 mg/L,and reaction time is 30 min,at last CODCr is reduced to 60mg/L,which meet the stricter discharge standard of paperm...