O_3/H_2O_2氧化技术处理钻井废水的研究

The Study on Ozone/Hydrogen Peroxide Oxidation Technology in Drilling Wastewater Disposal

研究了O3／H2O2复合作用对钻井废水COD的去除效果。将原钻井废水破胶处理后的废水作为实验对象，主要考察pH值、O3用量、O3／H2O2的比例以及反应时间等因素对复合氧化的影响。实验首先考察了单一因素的最佳值，然后再根据正交实验Lg（3^4）确定了O3／H2O2氧化技术的最优工艺条件。实验结果表明，在最佳的工艺条件下，废水COD的去除率达到84.43％，对处理钻井废水有很好的效果。

This paper discussed the enmbined ac- tion of O_3/H_2O_2 for COD_(Cr)disposal of drilling wastewater.Many factors impact the result of the oxi- dation,sueh as the pH value,the dosage of 03,the proportion of O_3 and H_2O_2,the reaction time and etc. First,each factor has been found the best value;then, the best reaction eondition of O_2/H_2O_2 oxidation tech- nology has been determined by Lg(34)experiments. According to the experiment results,under the best processing condition,the removal ratio of COD_(Cr)can reach 84.43%,which means good effect of this tech- nology in the drilling wastewater disposal.