شماره ركورد كنفرانس :
4518
عنوان مقاله :
The Use of Response Surface Methodology for the Study of the Effect of Liquid Recirculation Rate on the Hydrogen Sulfide Removal Performance of a Biotrickling Filter Employing Immobilised Thiobacilluc thioparus
Author/Authors :
Niloofar Abdehagh Department of Chemical Engineering - Amir Kabir University Of Technology , Tehran , Masoud Taghinejad Namini Department of Chemical Engineering - Amir Kabir University Of Technology , Tehran , Babak Bonakdarpoura Department of Chemical Engineering - Amir Kabir University Of Technology , Tehran , Mohammad Heydarian Department of Biotechnology - Iranian Research Organizatioan for science and Technology (IROST), Tehran , Davood Zareh Bonadkooki Department of Biotechnology - Iranian Research Organizatioan for science and Technology (IROST), Tehran
كليدواژه :
Biotricking Filter , Polyurethane Foam , Thiobacilluc thioparus , Liquid Recirculation Rate , Box-Behnken Design
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
In this study, the effect of liquid recirculation rate (LRR), empty bed residence time (EBRT), and inlet
concentration of hydrogen sulfide (Cgi) on Elimination Capacity (EC) and Removal Efficiency (RE)
of hydrogen sulfide in a biotrickling filter employing Thiobacilluc thioparus immobilised on
polyurethane foam was investigated at three levels using a Box-Behnken design of experiment
(DOE). Two quadratic regression models describing the relationship between the three factors within
the levels studied and the two responses were developed which could adequately describe the
performance indicators. The results show that increasing LRR at constant levels of Cgi has a slight
positive impact on EC of BTF. Also, increasing LRR at constant EBRTs had a positive impact on EC
of BTF at moderate and high levels of Cgi while this impact was negligible at low levels of Cgi. On
the other hand, at constant levels of Cgi, increasing LRR (from 175 to 350 ml/min) had a positive
impact on RE but further increase in LRR caused reduction of RE of the biotrickling filter. At
constant EBRTs and high levels of Cgi, increasing LRR had a pronounced positive effect on RE of
the BTF.
