东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (10): 1487-1491.DOI: 10.12068/j.issn.1005-3026.2019.10.021

• 资源与土木工程 • 上一篇    下一篇

城市污水脉冲电吸附技术深度脱氮

金肇岩， 胡筱敏， 孙通， 赵研   

  1. (东北大学 资源与土木工程学院， 辽宁 沈阳110819)
  • 收稿日期:2018-12-09 修回日期:2018-12-09 出版日期:2019-10-15 发布日期:2019-10-10
  • 通讯作者: 金肇岩
  • 作者简介:金肇岩(1984-)，男，辽宁鞍山人，东北大学博士研究生; 胡筱敏(1958-)，男，江西婺源人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51678118).

Advanced Denitrogenation of Urban Sewage with Pulse Electrosorption Technology

JIN Zhao-yan， HU Xiao-min， SUN Tong， ZHAO Yan   

  1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.
  • Received:2018-12-09 Revised:2018-12-09 Online:2019-10-15 Published:2019-10-10
  • Contact: HU Xiao-min
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摘要： 采用脉冲开关电源代替传统电吸附中的直流稳压电源，用活性炭粉末为吸附材料制备电极板，并构建了脉冲电吸附反应装置.比较了脉冲电吸附法和直流电吸附法在吸附去除模拟废水中NO3-N和NH3-N的去除率差异，60min内，脉冲电吸附法有更高的去除率.以NO3-N的去除率为判据，研究了脉冲电流的占空比和频率对氮素去除率的影响.结果表明，在占空比50%、频率104Hz的条件下，NO3-N的去除率最高.

关键词: 电吸附, 脉冲电场, 占空比, 频率, 深度脱氮

Abstract: A pulse electrosorption reaction device was constructed， in which the pulse-switching power supply was used to replace the DC stabilized power supply adopted in the traditional electro-adsorption， and the activated carbon powder was used as the adsorbent material to prepare the electrode plate. The removal rates of NO3-N and NH3-N in the simulated wastewater using pulse electrosorption method and direct current adsorption method were compared and results show that the removal rate of the pulse electrosorption method is higher within 60min.Taking the removal rate of NO3-N as the index， the effects of duty cycle and frequency on nitrogen removal rate were also studied. The results show that the removal rate of NO3-N is the highest when the duty cycle is 50% and the frequency is 104Hz.

Key words: electrosorption, pulsed electric field, duty cycle, frequency, advanced denitrogenation

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