Fenton试剂催化氧化法处理焦化废水的实验研究

以焦化废水为研究对象,采用Fenton(Fe2++H2O2)试剂催化氧化法对焦化废水进行强化一级处理实验。重点考察Fenton试剂在不同反应条件下,处理焦化废水的效果和反应的影响因素。设计了反应时间、pH值、试剂投加量、试剂配比、反应温度、投加方式等6种不同反应条件下CODCr和酚的去除实验。综合各反应条件试验结果表明:CODCr去除率为88.12%,酚去除率为89.45%,达到最佳实验处理效果。

Experimental Study on Catalytic Oxidation Method with Fentong Reagent for Treatment of of Cokeing Wastewater

Based on the experiment of treatment of coking wastewater through catalytic oxidation with Fenton(Fe~(2+)+H_2O_2) reagent, this paper emphatically compares treatment results under different reaction conditions and discusses their influencing factors.Experiments of removing COD and phenol from wastewater from Chongqing Steel and Iron Group' Coking works were conducted under 6 different reaction conditions, i.e. reaction time, pH, the plunged quantity of Fenton reagent, the dosing of Fenton reagent, reaction temperature,and the way of plunging. Raw wastewater was used in the experimental removal of COD and diluted wastewater with as much distilled water in the experimental removal of phenol.The experiment results show that the removal rate of COD and phenol stands at 88.12% and 89.45% respectively, an optimum treatment, with reaction temperature at 25℃,pH at 3, reaction time lasting 5 minutes and the ratio of H_2O_2 to COD and Fe~2+) to H_2O_2being 2∶1 and 10∶1 respectively.