铁碳微电解-Fenton法预处理苯胺基乙腈生产废水的动力学研究

通过采用铁碳微电解-Fenton法预处理苯胺基乙腈生产废水的实验研究，分析了处理过程的COD降解动力学；同时研究了单纯活性炭吸附和微电解过程中COD去除率的变化。结果表明，铁碳微电解的初期COD降解过程近似符合一级反应动力学，并且得到微电解与活性炭吸附对铁碳微电解降解COD的关系式；Fenton反应中通过研究有机物浓度和过氧化氢初始浓度与反应进程的关系，建立了反应动力学模型；单纯吸附实验COD去除率在24h内快速下降，而微电解在相应时间内COD去除率波动较小，为实际应用提供了数据经验和理论依据。

Study on kinetics of n-phenylglycinonitrile wastewater pre-treatment by iron-carbon micro-electrolysis and Fenton reagent

The degradation kinetics of COD was analyzed by studying n-phenylglycinonitrile wastewater pre- treatment using micro-electrolysis and Fenton process. Moreover, changes of COD removal rate were studied in the process of simple AC adsorption and micro-electrolysis respectively. The results showed that,initial COD degrada- tion process by micro-electrolysis obeys approximately the pseudo-first-order reaction kinetics, and relation of COD degradation by micro-electrolysis was obtained,which explained the relationship between micro-electrolysis and activated carbon adsorption. By studying the relationship between organic matter concentration, initial concen- tration of hydrogen peroxide and reaction process in Fenton reaction, a reaction kinetics model was established. COD removal rate of simple AC adsorption rapidly decreased within 24 h,while micro-electrolysis reaction had small fluctuation, which can provide data experience and theoretical basis for practical applications.