XUGuan-yu,ZHAOHong-mei,ZHANGZhen-xing,et al.Research Progress of Iron-Carbon Micro-electrolysis and Its Coupling Biological Denitrification[J].China Water & Wastewater,2024,40(22):29-39.
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Research Progress of Iron-Carbon Micro-electrolysis and Its Coupling Biological Denitrification

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第40卷 Number: 第22期 Page: 29-39 Column: Date of publication: 2024-11-17
Author(s):
XU　Guan-yu1; 2;  ZHAO　Hong-mei1; 2;  ZHANG　Zhen-xing1; 2;  ZHAO　Chuan-liang1; 2;  YANG　Li-wei1; 2
（1. Department of Constructional Engineering， Chang’an University， Xi’an 710061， China； 2. Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-Rural Development， Chang’an University， Xi’an 710061， China）
Keywords:
iron-carbon micro-electrolysis;  enhanced denitrification;  iron and carbon electrode
Abstract:
With the advancement of the standard for nitrogen removal from wastewater, challenges such as insufficient carbon sources and low nitrogen removal efficiency have emerged in biological nitrogen removal processes. To address these issues, researchers have been exploring the combination of chemical and biological methods to reduce the demand for organic carbon sources and enhance the effectiveness of biological nitrogen removal. The removal of nitrate nitrogen by iron-carbon micro-electrolysis (IC-ME) was introduced and the galvanic cell reaction theory of IC-ME was briefly described. The influence of different iron electrode and carbon electrode on the reaction, and the impact factors and reaction mechanism of chemical denitrification and coupled biological denitrification by micro-electrolysis were also summarized. Additionally, the enhanced effect of IC-ME process on biological nitrogen removal was analyzed from the perspectives of the growth environment and microbial enzymes. Finally, this paper addressed the current challenges and proposes future development directions for the system.
Last Update: 2024-11-17