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- W2013190049 abstract "Ketone compounds that are widely used in various manufacturing processes are known as high-priority toxic volatile organic compounds (VOCs). The use of biofiltration systems for the removal of VOCs from a polluted air stream has attention because of the inherent advantages of these systems such as high removal efficiency and low installation and maintenance costs. In this study, a biofiltration system for the removal of ketone compounds (acetone, methyl ethyl ketone (MEK)) was developed using laboratory scale three-layer biofilter beds packed with ceramic-type media (bed volume 5 L). The operating conditions were optimized on the basis of environmental parameters, and mixed cultures of microorganisms obtained from a sewage treatment plant were inoculated to induce microbial biofilm formation. This system was operated at an empty bed retention time (EBRT) of 15–30 s under nitrogen-deficient conditions, and 1 L of the nutrient solution was supplied every two weeks. During the operation time of approximately three months, the removal efficiency was found to be more than 97% at when the inlet acetone concentration was 110–720 ppmv and 90% when the inlet MEK concentration was 91–591 ppmv. These removal efficiencies corresponded to removal capacities of 31–93 g m−3 h−1 and 16–85 g m−3 h−1, respectively. The maximum elimination capacity for acetone and MEK was approaching to 300 g m−3 h−1 and 200 g m−3 h−1, respectively. By using GC/MS analysis, methanol was detected in the outlet stream when the biofilter was used for acetone removal, and methanol and acetone were detected in the outlet stream when the biofilter was used for MEK removal." @default.
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- W2013190049 date "2010-01-01" @default.
- W2013190049 modified "2023-10-07" @default.
- W2013190049 title "Degradation of Acetone and MEK Using a Biofilter Packed with a Ceramic-type Medium" @default.
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- W2013190049 doi "https://doi.org/10.1252/jcej.09we128" @default.
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