| 羟基氧化铁催化臭氧氧化降解苯胺废水 |
| |
| 引用本文： | 林继辉,蒋联规,曾飞虎,黄先锋.羟基氧化铁催化臭氧氧化降解苯胺废水[J].宁德师专学报(自然科学版),2012,24(3):231-237. |
| |
| 作者姓名： | 林继辉 蒋联规 曾飞虎 黄先锋 |
| |
| 作者单位： | 福建师范大学闽南科技学院,福建南安,362332 |
| |
| 基金项目： | 福建省教育厅科技研究项目，福建省大学生创新性实验计划项目 |
| |
| 摘 要： | 以实验室制备的羟基氧化铁（FeOOH）为催化剂催化臭氧氧化处理苯胺废水,对比催化臭氧氧化与单独臭氧降解苯胺的效率,实验结果表明,FeOOH催化臭氧氧化能加快对苯胺的降解速率,并且矿化程度高.说明FeOOH对臭氧氧化水中的苯胺具有明显的催化作用.探讨了氧气的进气流量、苯胺的初始浓度、水溶液的pH、催化剂的投加量等因素对催化氧化苯胺的影响.研究表明：氧气的进气流量为30L/h、初始浓度300mg/L时、pH值7.3、催化剂的投加量为2g/L、反应15min后,苯胺的去除率可达98.2%,COD的去除率可达70%.在催化体系中加入自由基捕获剂叔丁醇后,催化臭氧氧化反应明显受到抑制,间接证明了FeOOH催化臭氧氧化苯胺遵循自由基反应机理.
|
| 关 键 词： | 羟基氧化铁 催化臭氧化 苯胺 羟基自由基 |
Degradation of aniline Wastewater by hydroxyl iron oxide catalytic ozone oxidation |
| |
| Institution: | LIN Ji-hui,JIANG Lian-gui,ZENG Fei-hu,HUANG Xian-fen (Minnan Science and Technology Institute, Fujian Normal University, Nan＇an,Fujian 362332, China) |
| |
| Abstract: | By the laboratory preparation of hydroxyl ferric oxide （FeOOH） as catalyst 03 catalytic oxidation wastewater treatment aniline, the contrast of 03 catalytic and individual ozone of aniline degradation efficiency is made. The experimental results show that FeOOH 03 catalytic can accelerate the degradation rate of aniline, and a high degree of mineralization. It also proves that the FeOOH to ozone oxidation of aniline in water has the obvious catalytic activity. The paper discusses the oxygen intake flow, aniline initial concentration, the solution of the catalyst pH and the dosing quantity of factors catalytic oxidation of aniline influence. Research shows that： oxygen intake flow for 30 L/h, initial concentration 300 mg/L, pH value of 7.3, catalyst dosing quantity for 2 g/L, reaction after 15 min to the removal rate of aniline can reach 98.2%. The COD removal rate can amount to 70%. Through the process of free radicals in catalytic to capture agent after uncle butanol, it showed significant inhibitory catalytic oxidation reaction ozone, which indirectly proves that the FeOOH 03 catalytic oxidation aniline follows the free radicals reaction mechanism. |
| |
| Keywords: | iron oxide hydroxides catalytic ozonation aniline hydroxyl radicals |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
