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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 12, No. 5, 2015, pp. 1625-1634
Bioline Code: st15151
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 12, No. 5, 2015, pp. 1625-1634

 en Performance of packed bed biofilter during transient operating conditions on removal of xylene vapour
Saravanan, V.; Rajasimman, M. & Rajamohan, N.

Abstract

The performance of two laboratory-scale biofilters packed with pressmud (BF1) and sugarcane bagasse (BF2) was evaluated for gas-phase xylene removal under various operating conditions. Biofilter was inoculated with a mixed culture obtained from pharmaceutical sludge. Experiments were carried out at different flow rates (0.03, 0.06, 0.09 and 0.12 m3 h-1) and inlet xylene concentrations (0.2, 0.4, 0.6 and 1.2 g m-3). A maximum removal efficiency of 99 and 95 % were achieved at an inlet concentration of 0.2 g m-3 and gas flow rate of 0.03 m3 h-1 for BF1 and BF2, respectively. The dynamic behaviour of the biofilter was tested at different process conditions through vigorous short, medium and long-term shock loads. The biofilter was found to respond apace to rapid changes in loading conditions. The stability of the biomass within the reactor was apparent from the fast response of the biofilter to recuperate and handle intermittent shutdown and restart operations.

Keywords
Pressmud; Sugarcane bagasse; Xylene; Shutdown; Shock loading

 
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