• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature environment and pollution technology >Decomposition of Ammonia Nitrogen from Biologically Pretreated Coking Wastewater with Electrochemical Three-dimensional Ti/RuO2/IrO2 Electrodes
【24h】

Decomposition of Ammonia Nitrogen from Biologically Pretreated Coking Wastewater with Electrochemical Three-dimensional Ti/RuO2/IrO2 Electrodes

机译：具有电化学三维Ti / Ruo2 / IRO2电极的生物学预处理焦化废水中氨氮的分解

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this research, the electrochemical oxidation with a three-dimensional electrode system, with coke servingas packed bed particle electrodes, was applied for the removal of ammonia nitrogen in biologically pretreatedcoking wastewater. Surface characteristics of the anode plate and the coke were analysed. The resultsshowed that there had been few cracks on the coating surface of anode and the coating layer had beencompact before electrolysis, while the coating surface became relatively rough after electrolysis and smallcracks appeared on anode surface. Meanwhile, the surface of prepared coke was porous at the beginning,which enabled it to have adsorption effect, while after electrolysis, the surface of the used coke becamedense, which made it function better as packed bed electrodes. In addition, operating variables of retentiontime, plate spacing, area/volume, current density, pH and chloride concentration were investigated respectivelyto check their influence on ammonia nitrogen removal. Meanwhile, the results showed that the electrochemicalthree-dimensional Ti/RuO 2 /IrO 2 electrodes could remove ammonia nitrogen efficiently, and when plate distancewas 1.0cm, retention time was 40min and current density was 4.5mA/cm 2 , the highest ammonia nitrogenremoval rate of about 95% was achieved, which was much higher than the removal rate of the system whenTi/RuO 2 /IrO 2 electrodes were used in single under the same condition.
机译：在该研究中，用具有焦炭供应填充床粒子电极的用三维电极系统的电化学氧化用于去除生物预进入废水中的氨氮。分析了阳极板和焦炭的表面特性。阳极涂层表面上存在很少裂缝的结果在电解前尚未丧失，而电解后涂层表面在阳极表面上出现相对粗糙。同时，制备的焦炭表面在开始时是多孔的，这使得它具有吸附效果，而电解之后，所用焦炭的表面使其变得更好地用填充床电极起作用。另外，研究了保留时间，板间距，面积/体积，电流密度，pH和氯化物浓度的操作变量，检查它们对氨氮除去的影响。同时，结果表明，电化学三维Ti / ruO 2 / IRO 2电极有效地除去氨氮，并且当板距离时，保留时间为40分钟，电流密度为4.5mA / cm 2，最高的氨氮化率达到约95％的达到了大约95％，远高于在同一条件下单独使用的系统Whenti / Ruo 2 / Iro 2电极的去除率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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