شماره ركورد كنفرانس :
5048
عنوان مقاله :
Removal of H2S from Synthetic Waste Gas Streams Using a Biotrickling Filter with Polyurethane Foam as Synthetic Bed
Author/Authors :
Niloufar ،Abdehagh Department of Chemical Engineering - Amir Kabir University Of Technology، Tehran, Iran , Mohammad ،Heydarian Department of Biotechnology - Iranian Research Organizatioan for science and Technology (IROST), Tehran, Iran , Babak ،Bonakdarpour Department of Biotechnology - Iranian Research Organizatioan for science and Technology (IROST), Tehran, Iran , Davood ،Zare’ bonad kooki Department of Biotechnology - Iranian Research Organizatioan for science and Technology (IROST), Tehran, Iran
كليدواژه :
biotrickling filter , hydrogen sulfide , polyurethane foam , Thiobacillus thioparus
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
The removal of hydrogen sulfide (H2S) from airstream was studied in a biotrickling filter (BTF) packed with openpore
polyurethane foam as a carrier of Thiobacillus thioparus (DSMZ5368) with countercurrent gas/liquid flows. This
study is the first work using open-pore polyurethane foam as a synthetic bed to immobilize autotrophic bacteria. The
effect of operating parameters on BTF performance was studied. The results showed lower performance of the BTF
compared to other studies in which either polyurethane foam with other microorganisms or Thiobacillus thioparus with
other packings were employed which can be attributed to unsatisfactory immobilization of Thiobacillus thioparus on
polyurethane foam. The effect of liquid recirculation rate (LRR) in the range of 175-525 ml/min (0.46-1.34 m/hr) on
the BTF performance was studied. Results show that increasing LRR has great positive effect on H2S removal
efficiency. Finally, H2S elimination at different heights of the bed was studied and gradual change in H2S elimination
showed a reasonable homogeneity of removal along the height of the BTF.
