| 초록 |
We studied on the removal of toluene vapors in a lab-scale biofilter. Biofiltration was performed in a column with upflow toluene-contaminated air under ambient conditions. The column was packed with mixture of Peat and Calstone(5:3 vol. Ratio), synthetic media, and bark and wood chip, which were inoculated with Pseudomonas putida. The biofilter was operated under the conditions of various inlet toluene concentrations for 180days. The effect of operating conditions such as flow rate, inlet toluene concentration and moisture contents on the performance of the biofilter was sequentially investigated in this study. The biofilter treated the toluene containing air up to maximum the elimination capacity of 40g/m3hr at the inlet load of 30g/m3 hr with percentage removals of 20~90% when gas retention times were between 1 and 2min. The pressure drop through the biofilter column was negligible such as 0.054cmH2O/m. |
