Kinetics of aniline degradation by Fenton and electro-Fenton processes
Kinetics of aniline degradation by Fenton and electro-Fenton processes
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DOI：
10.1016/j.watres.2006.02.033
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发表时间：
2006-05-01
期刊：
影响因子：
12.8
通讯作者：
Chewpreecha, Parichat
中科院分区：
文献类型：
--
作者：
Anotai, Jin;Lu, Ming-Chun;Chewpreecha, Parichat
研究了pH 2条件下芬顿和电芬顿降解苯胺的动力学。电芬顿法被认为是上级的普通芬顿工艺与电流影响的去除效率为1.2至3.1和1.2至5.8的降解率取决于初始Fe 2+浓度。这主要是由于Fe 2+的快速电化学再生。通过芬顿和电芬顿过程的苯胺降解的总体速率方程（以摩尔和分钟为单位）为：[图形]在当前应用中，苯胺降解速率似乎独立于芬顿的试剂浓度，并且相对于苯胺接近半阶。此外，完全去除0.01 M苯胺，在初始阶段的电流供应的延迟可以节省高达三分之一的总能量所需的普通电芬顿过程。因此，电流延迟运行模式可以显着降低能耗和运行成本。(c)2006爱思唯尔有限公司保留所有权利。
Aniline degradation at pH 2 by Fenton and electro-Fenton processes was kinetically investigated in this study. Electro-Fenton process was found to be superior to ordinary Fenton process with the current impacts of 1.2 to 3.1 for removal efficiency and 1.2 to 5.8 for degradation rate depending on initial Fe2+ concentration. This is mainly due to the rapid electrochemical regeneration of Fe2+. Overall rate equations for aniline degradation by Fenton and electro-Fenton processes (in units of molar and minute) are:[GRAPHICS]With current application, aniline degradation rate seems to be autonomous from Fenton's reagent concentrations and approaching a half order with respect to aniline. In addition, for complete removal of 0.01 M aniline, the delay in current supply at the initial stage could save up to one-third of the total energy required by the ordinary electro-Fenton process. As a result, significant reduction in energy consumption and operating cost could be obtained by the current-delay operating mode. (c) 2006 Elsevier Ltd. All rights reserved.