**Author details**

Hui-Ping Chuang1 \*, Akiyoshi Ohashi<sup>2</sup> and Hideki Harada3,4

1 Sustainable Environment Research Laboratories, National Cheng Kung University, Tainan, Taiwan

2 Department of Civil and Environmental Engineering, Hiroshima University, Hiroshima, Japan

3 DHS Technology, Inc., Tokyo, Japan

4 Department of Environmental Engineering, Tohoku University, Sendai, Japan

\*Address all correspondence to: hpchuang@mail.ncku.edu.tw

© 2023 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*The Contribution of Autotrophic Nitrogen Oxidizers to Global Nitrogen Conversion DOI: http://dx.doi.org/10.5772/intechopen.112709*
