Performance evaluation and phylogenetic characterization of anaerobic fluidized bed reactors using ground tire and pet as support materials for biohydrogen production

This study evaluated two different support materials (ground tire and polyethylene terephthalate [PET]) for biohydrogen production in an anaerobic fluidized bed reactor (AFBR) treating synthetic wastewater containing glucose (4000mgL−1). The AFBR, which contained either ground tire (R1) or PET (R2)...

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Bibliographic Details
Published in:Bioresource technology 2011-02, Vol.102 (4), p.3840-3847
Main Authors: Barros, Aruana Rocha, Adorno, Maria Angela Tallarico, Sakamoto, Isabel Kimiko, Maintinguer, Sandra Imaculada, Varesche, Maria Bernadete Amâncio, Silva, Edson Luiz
Format: Article
Language:English
Subjects:
16S rRNA
Anaerobic fluidized bed reactor
Anaerobiosis
Bacillus
Bacillus - metabolism
Bacteria
Biofuel production
Biohydrogen production
Biological and medical sciences
Biomass
Bioreactors
Biotechnology
Biotechnology - methods
Clostridium
Clostridium - metabolism
Energy
Enterobacter
Enterobacter - metabolism
Equipment Design
Fluidized beds
Fundamental and applied biological sciences. Psychology
Glucose
Glucose - chemistry
Ground tire
Grounds
Hydrogen - chemistry
Industrial applications and implications. Economical aspects
PET
Phylogeny
Polyethylene terephthalates
Polyethylene Terephthalates - chemistry
Reactors
RNA, Ribosomal, 16S - chemistry
Sludge
Temperature
Tires
Waste water
Water Pollutants, Chemical - isolation & purification
Water Purification - methods
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Summary:This study evaluated two different support materials (ground tire and polyethylene terephthalate [PET]) for biohydrogen production in an anaerobic fluidized bed reactor (AFBR) treating synthetic wastewater containing glucose (4000mgL−1). The AFBR, which contained either ground tire (R1) or PET (R2) as support materials, were inoculated with thermally pretreated anaerobic sludge and operated at a temperature of 30°C. The AFBR were operated with a range of hydraulic retention times (HRT) between 1 and 8h. The reactor R1 operating with a HRT of 2h showed better performance than reactor R2, reaching a maximum hydrogen yield of 2.25molH2mol−1 glucose with 1.3mg of biomass (as the total volatile solids) attached to each gram of ground tire. Subsequent 16S rRNA gene sequencing and phylogenetic analysis of particle samples revealed that reactor R1 favored the presence of hydrogen-producing bacteria such as Clostridium, Bacillus, and Enterobacter.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2010.12.014