催化氧化法处理红色基B废水的动力学研究

Kinetic study on red B wastewater treatment by catalytic oxidation

研究了催化氧化法处理红色基B生产过程所产生的工业废水的动力学。红色基B的工业废水COD值高达40 063 mg·L^(-1),含有大量有机物,颜色为红色且有强烈的刺激气味。废水处理过程中以FeSO_4为催化剂、H_2O_2为氧化剂,研究了催化氧化法处理废水的工艺路线及工艺条件,分析了影响因素,建立了动力学模型,研究了其催化氧化的动力学过程。结果表明,处理后的废水的COD值可降为4 mg·L^(-1)左右,去除率为90%;所建立的过氧化物催化氧化红色基B废水的动力学方程与实验数据拟合较好。其表观动力学方程为:-(dc)/(dt)=1.978 6exp(-(19 351)/(RT))[H_2O_2]_0^(0.979 6)

Red B wastewater containing a large amount of organic compounds and with irritant odor was treated by catalytic oxidation, using FeSO4 as the catalyst and H202 as the oxidant. COD in the wastewater offered by Shandong Organic Synthesis Co. Ltd. was up to 40 063 mg ·L^-1. Kinetic mathematic model was established on the basis of investigation on the influential factors. The results showed that COD was lowered to 4 mg· L^-1 ; the kinetic equation was well fitted with the experimental data. The apparent kinetic equation for red B wastewater treatment is as follows：-dc/dt=1.9786exp（-19351/RT）[H2O2]：0^0.9796 C.