芬顿法深度处理造纸废水

Advanced treatment of papermaking wastewater by Fenton method

利用芬顿(Fenton)法对造纸废水生化出水进行深度处理,考察了废水pH值、反应时间、FeSO4投加量和H2O2投加量对废水中色度和CODC r去除率的影响。结果表明:在pH值为5.00、FeSO4投量为400 mg/L、30%H2O2投量为200 mg/L,反应时间为30 m in,出水CODC r可降至60 mg/L以下,色度的去除率可达到74%,可以满足更为严格的造纸废水排放标准,为进一步的工程设计提供依据。

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 papermaking wastewater,further provide the basis for engineering design.