摘要
为了提高对造纸废水中CODCr 的去除率,采用电Fenton协同技术处理造纸制浆废水,分别研究影响CODCr 去除效率的因素,优化反应条件.实验结果表明,在反应时间 80 min、pH=4、Fe2+浓度为1.0 mol/L、H2O2 浓度为0.8 mol/L、极板距离为10 cm、电解电压为10 V、曝气量为1.0 L/min,CODCr最大去除率为78%.该研究为造纸废水处理提供了理论基础.
Abstract
To enhance the removal rate of CODCr in papermaking wastewater,the electro-fenton collaborative technology is employed for the treatment of paper pulping wastewater.The influences of reaction time,pH value,FeSO4·7H2O concentration,H2O2 concentration,electrolytic voltage,plate distance,aeration and other factors on the removal efficiency of CODCr are systematically studied,and the reaction conditions are optimized.The ex-perimental results show that when the reaction time is 80 min,pH=4,Fe2+concentration is 1.0 mol/L,H2O2 concentration is 0.8 mol/L,plate distance is 10 cm,electrolytic voltage is 10 V,aeration rate is 1.0 L/min,and the maximum CODCr removal rate is 78%.This study provides a theoretical foundation for the treatment of papermaking wastewater.
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