Treatment of methylacetate waste gas using a rickle-bed air biofilter

摘要

The trickle-bed air biofilter (TBAB) performance for methylacetate (MA) removal from waste gases was evaluated under differ- ent gas flow rates and influent concentrations. In the pseudo-steady-state conditions, the elimination capacity increased but the removal efficiency decreased with the increase of MA loading. More than 95 and 90/100 removal efficiencies were achieved for influ- ent MA loadings below 390 and 727 g/m~3/h, respectively. The TBAB appears to be a very effective treatment process for controlling MA emission under low to high loading conditions, and the effectiveness could be maintained over 190 days of laboratory opera- Tion.