ZHAOJing,FUKun-ming,HUANGShao-wei,et al.Research Progress of Partial Autotrophic Denitrification with Different Electron Donors[J].China Water & Wastewater,2023,39(14):19-26.
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Research Progress of Partial Autotrophic Denitrification with Different Electron Donors

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第14期 Page: 19-26 Column: Date of publication: 2023-07-17
Author(s):
ZHAO　Jing;  FU　Kun-ming;  HUANG　Shao-wei;  BIAN Yi-hao;  QIU　Fu-guo
（Sino-Dutch R & D Centre for Future Wastewater Treatment Technologies， Key Laboratory of Urban Stormwater System and Water Environment ， Beijing University of Civil Engineering and Architecture， Beijing 100044， China）
Keywords:
partial autotrophic denitrification;  Anammox;  electron donor;  NO2--N accumulation;  influencing factors
Abstract:
The application of Anammox technology is limited by the difficulty of obtaining stable electron acceptor NO2--N , and studies have shown that partial autotrophic denitrification is an effective way to obtain NO2--N accumulation. The influencing factors and existing problems of NO2--N accumulation in autotrophic denitrification using reduced sulfur (S0, sulfide), CH4 and H2 as electron donors were reviewed, and the related microorganisms and enzymes were introduced, providing the reference for the selection of electron donors in autotrophic denitrification coupled Anammox. The results show that denitrification using reduced sulfur as electron donor is safe and economical, but there is a risk of secondary pollution; denitrification using CH4 as electron donor is environmentally friendly and non-toxic, but its safety and mass transfer efficiency are low; denitrification with H2 as electron donor has no secondary pollution, low safety and mass transfer efficiency, MBfR can promote mass transfer for the denitrification with H2 or CH4 as electron donor.
Last Update: 2023-07-17