Yunlong Yang, Shaobin Huang 2,3,4, Yongqing Zhang2,4, Fuqian Xu

  • 1 Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510006, China
  • 2 State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510006, China
  • 3 The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, 510006, China

Received: December 18, 2012
Revised: March 20, 2013
Accepted: March 20, 2013
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Cite this article:
Yang, Y., Huang, S., Zhang, Y. and Xu, F. (2013). Field Applications for NOx Removal from Flue Gas in a Biotrickling Filter by Chelatococcus daeguensis TAD1. Aerosol Air Qual. Res. 13: 1824-1831.



In this study, effects of the initial nitrate, oxygen and carbon sources on the nitrification and denitrification rate were studied in a lab-scale biotrickling filter (l-BF) inoculated with Chelatococcus daeguensis TAD1, and the maximum nitrification and denitrification rate achieved to 30.08 mg-N/L/h and 100.8 mg-N/L/h, respectively. Thereafter, C. daeguensis TAD1 was initially inoculated into a pilot-scale biotrickling filter (p-BF) to remove NOx from the real flue gas of a coal-fired power plant, and a high removal efficiency of 86.7% at about 45–50°C was obtained. Analysis by PCR-DGGE showed that TAD1 was predominant in the biofilm of l-BF, whereas TAD1 in the biofilm of p-BF coexisted with other microbes to remove NOx together. Overall, the present study demonstrated that C. daeguensis TAD1 was firstly found to be one of the best candidates for the efficient treatment of NOx on a large scale under high flue gas temperature.

Keywords: Flue gas; NOx; Biotrickling filter; Aerobic denitrification; Chelatococcus daeguensis TAD1

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