شماره ركورد كنفرانس :
5048
عنوان مقاله :
Influence of transient loading on the removal of high concentrations of VOCs in a biological air filter
Author/Authors :
S.M ،Zamir Faculty of chemical engineering - Amirkabir university of technology, Tehran, Iran , R ،Halladj Faculty of chemical engineering - Amirkabir university of technology, Tehran, Iran , M ،Ferdowsi Faculty of chemical engineering - Amirkabir university of technology, Tehran, Iran , B ،Nasernejad Faculty of chemical engineering - Amirkabir university of technology, Tehran, Iran
كليدواژه :
biofilter , compost , toluene , hexane , transient loading
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
In this research, the elimination of high concentrations of toluene and hexane from waste air was studied in a
biofilter under transient condition. The system was operated 10 h a day on the air residence times 0.9, 1.5 and 3 min and
2-3.8 gm-3 of pollutant concentration. Regarding the harsh biological condition of biofilter media such as high pollutant
concentration and daily intermittent aeration, reaching the steady-state situation and removal efficiency of 90% took
about 44 days. The elimination capacity of higher than 62 gm-3h-1 was observed in the entire of the experiment. Results
showed that the performance of the system improved gradually after the daily starting the aeration and the times elapsed
to achieve the maximum removal efficiency were 2.5 and 1 h for toluene and hexane, respectively.
