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1056632 
Journal Article 
H2S gas biological removal efficiency and bacterial community diversity in biofilter treating wastewater odor 
Omri, I; Bouallagui, H; Aouidi, F; Godon, JJ; Hamdi, M 
2011 
Yes 
Bioresource Technology
ISSN: 0960-8524
EISSN: 1873-2976 
102 
22 
10202-10209 
English 
21945209 
The objective of this study was to assess the feasibility of using a biofilter system to treat hydrogen sulfide (H2S) contaminated air and to characterize its microbial community. The biofilter system was packed with peat. During the experimental work, the peat was divided in three layers (down, middle, and up). Satisfactory removal efficiencies of H2S were proved and reached 99% for the majority of the run time at an empty bed retention time (EBRT) of 60 s. The polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) method was used to uncover the changes in the microbial community between the different layers. Analysis of SSCP profiles demonstrated significant differences in community structure from a layer to another with a strong decrease in species diversity towards the up layer. It was found that the used support was suitable for microorganism growth, and may have a potential application in H2S biofiltration system.