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Treatment of N,N-dimethylacetamide waste gas by a trickle-bed air biofilter
1Department of Environmental Engineering, National Chung Hsing University, Taichung, Taiwan, ROC. cslu@green.ev.nchu.edu.tw
Abstract:
The system performance of a trickle-bed air biofilter (TBAB) for treating N,N-dimethylacetamide (DMAC) waste gas was investigated under different gas flow rates and influent concentrations. In the pseudo-steady-state conditions, the DMAC elimination capacity increased but the removal efficiency decreased as the influent loading increased. More than 90% and 80% DMAC removal efficiencies are achieved for influent loadings below 20.2 and 34.5 g DMAC/m3/h, respectively. The TBAB appears to be an effective treatment process for controlling DMAC emission with low-to-medium loadings and the effectiveness could be maintained over a long-period operation.
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