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Journal of Chemistry
Volume 2015, Article ID 414237, 9 pages
http://dx.doi.org/10.1155/2015/414237
Research Article

Removal of Ethanethiol Gas by Iron Oxide Porous Ceramsite Biotrickling Filter

1Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
2School of Resources & Environmental Engineering, Hefei University of Technology, Hefei 230009, China

Received 22 September 2014; Accepted 16 December 2014

Academic Editor: Jian Lu

Copyright © 2015 Peipei Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The performance of ethanethiol removal in biotrickling filter was investigated by microorganisms fixed on iron oxide-based porous ceramsite (IPC) under different operating parameters conditions. Ethanethiol removal efficiency was examined as a function of inlet concentration, empty bed residence time (EBRT), and spray density of nutrient solution. The results showed that the optimized operation conditions and operation characteristics of biotrickling filter for this study were at the inlet concentration of less than 250 mgm−3, the spray density of 0.24 m3m−2 h−1, and the EBRT of 68.7 s. The variation of the EBRT of about 100 s and the spray density of about 0.24 m3m−2 h−1 did not change the ethanethiol removal efficiencies at certain ethanethiol concentrations of less than about 300 mg/m3, respectively. The main metabolic product was sulfate such as under continuous long-running regime in filter. The ethanethiol desulfurization process better meets the Michaelis-Menien model with calculated kinetic degradation parameters  mgm−3 and  gm−3 h−1.