摘要
通过理论推导得到填充型电化学反应器出水化学需氧量(COD)的预测模型,并通过处理DSD酸生产废水进行了验证。结果表明,反应过程中电压和电流的关系并不完全遵循欧姆定律,添加TiO_2和曝气下进行反应能够增强处理效果;较高的电压、较大的TiO_2添加量或高曝气强度均能获得较高的反应速率常数。利用该预测模型能够较为精确地预测DSD酸生产废水处理出水的COD值。
Estimation model for chemical oxygen demand （COD） of outlet water treated by electrocatalytic oxidation process with fillings packed was obtained by theoretical deduction and confirmed by oxidizing organic compounds in DSD acid wastewater. The experiments revealed that Ohm＇s law couldn＇t always describe the relation between the applied voltage and current during the oxidation process and the reaction efficiency could be enhanced when catalyst TiO2 and aeration were applied. The larger value of reaction rate constants also could be achieved by increasing applied voltage, dosage of TiO2 or aeration density. The kinetics obtained from the experiments under these electrical conditions could provide an accurate estimation of COD outlet for DSD acid wastewater treatment.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2008年第6期721-725,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
