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- W3201469317 abstract "N,N-Dimethylformamide (DMF) is an organic solvent produced in large quantities worldwide. It is considered as a hazardous air pollutant and its emission should be controlled. However, only a very limited number of studies have been performed on the removal of gaseous DMF by biological technologies. In this paper, we evaluate the removal of DMF under mesophilic and thermophilic conditions in a lab-scale biofilter packed with wood chips and compost. The performance of the biofilter was studied under varying inlet conditions using Selected Ion Flow Tube Mass Spectrometry (SIFT-MS). Furthermore, microbial analysis data is presented to identify the microorganisms responsible for DMF removal and observe their evolution over time. The results show that, at ambient temperature, the biofilter achieved removal efficiencies (RE) above 98% at Inlet Loads (ILs) up to 297±52 g DFM m-3 h-1 (EBRTs > 10.7 s). However, a decrease in Empty Bed Residence Time (EBRT) (6.4 s) associated with an increase in IL (380±129 g DFM m-3 h-1) led to an unstable outlet stream and, thus, to a drop in the biofilter performance. Moreover, an increase in temperature - from 21 to 65 °C - led to a decrease in RE. Overall, our experimental results indicate that biofiltration is a promising technique to remove DMF from waste gas streams, but a mechanistic understanding is needed to exploit its potential and rapid implementation in full-scale installations." @default.
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- W3201469317 date "2021-01-01" @default.
- W3201469317 modified "2023-09-27" @default.
- W3201469317 title "Mesophilic and thermophilic biofiltration of N,N-Dimethylformamide : long-term performance evaluation and microbial communities’ evolution" @default.
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