• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Royal Society Open Science >Degradation of folic acid wastewater by electro-Fenton with three-dimensional electrode and its kinetic study
【2h】

Degradation of folic acid wastewater by electro-Fenton with three-dimensional electrode and its kinetic study

机译：三维电极电Fenton法降解叶酸废水及其动力学研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The three-dimensional electro-Fenton method was used in the folic acid wastewater pretreatment process. In this study, we researched the degradation of folic acid and the effects of different parameters such as the air sparging rate, current density, pH and reaction time on chemical oxygen demand (COD) removal in folic acid wastewater. A four-level and four-factor orthogonal test was designed and optimal reaction conditions to pretreat folic acid wastewater by three-dimensional electrode were determined: air sparge rate 0.75 l min−1, current density 10.26 mA cm−2, pH 5 and reaction time 90 min. Under these conditions, the removal of COD reached 94.87%. LC-MS results showed that the electro-Fenton method led to an initial folic acid decomposition into p-aminobenzoyl-glutamic acid (PGA) and xanthopterin (XA); then part of the XA was oxidized to pterine-6-carboxylic acid (PCA) and the remaining part of XA was converted to pterin and carbon dioxide. The kinetics analysis of the folic acid degradation process during pretreatment was carried out by using simulated folic acid wastewater, and it could be proved that the degradation of folic acid by using the three-dimensional electro-Fenton method was a second-order reaction process. This study provided a reference for industrial folic acid treatment.
机译：叶酸废水预处理过程中采用了三维电Fenton方法。在这项研究中，我们研究了叶酸的降解以及不同参数（如鼓泡速率，电流密度，pH和反应时间）对叶酸废水中化学需氧量（COD）去除的影响。设计了四级四因素正交试验，确定了三维电极预处理叶酸废水的最佳反应条件：空气喷射速率0.75 ratel min -1 ，电流密度10.26 mA cm -2 ，pH 5，反应时间90 min。在这些条件下，化学需氧量的去除率达到94.87％。 LC-MS结果表明，电芬顿法导致叶酸初始分解为对氨基苯甲酰谷氨酸（PGA）和黄嘌呤蝶呤（XA）。然后将XA的一部分氧化为6-羧酸-6羧酸（PCA），将XA的其余部分转化为蝶呤和二氧化碳。采用模拟叶酸废水进行了预处理过程中叶酸降解过程的动力学分析，证明了三维电Fenton法降解叶酸是二级反应过程。该研究为工业叶酸处理提供了参考。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号