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