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中文摘要：
以硝基苯为模型污染物，研究了铁碳微电解过程中硝基苯初始浓度、铁屑用量、铁碳比及pH（pH〈3.0）等因素对降解过程的影响规律。研究结果表明，硝基苯废水初始浓度越大，达到一定去除率时所需的铁屑用量越大。外加活性炭会与降解底物竞争电子，导致电子利用率不高，微电解的还原效率并没有因此提高。低 pH 可以加速铁碳微电解处理速率，反应过程中 pH 的升高对硝基苯还原中间产物羟基苯胺和苯胺的形成及分布影响较大，有限停留时间内主要还原产物是二者的混合物。
英文摘要：
Nitrobenzene was selected as a model contaminant to examine the effects of initial concentration of nitrobenzene, dosage of iron, rate of iron/carbon and pH （pH〈3.0） on removal efficiency of nitrobenzene by iron-carbon micro-electrolysis. The initial concentration of nitrobenzene determined the dosage of iron. The additional activated carbon could compete with degradation substrate on electron accepting, leading to a negative effect on the efficiency of electron usage, and decreased reduction efficiency of iron-carbon micro-electrolysis. Low pH could increase reaction rate of iron-carbon micro-electrolysis, and increasing pH during the reaction had a remarkable effect on formation and distribution of intermediate reduction products, including phenylhydroxylamine and aniline.
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