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Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
35646 45100 2009 6 PDF Available
Title
Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis
Abstract

A microbial consortium attached onto a polyethylene support was used to evaluate the simultaneous oxidation of sulfide and phenol by denitrification. The phenol, sulfide and nitrate loading rates applied to an inverse fluidized bed reactor were up to 168 mg phenol–C/(l d), 37 mg S2−/(l d) and 168 mg NO3−–N/(l d), respectively. Under steady state operation the consumption efficiencies of phenol, sulfide and nitrate were 100%. The N2 yield (g N2/g NO3−–N) was 0.89. The phenol was mineralized resulting in a yield of 0.82 g bicarbonate–C/g phenol–C and sulfide was completely oxidized to sulfate with a yield of 0.99 g SO42−–S/g S2−. 16S rRNA gene-based microbial community analysis of the denitrifying biofilm showed the presence of Thauera aromatica, Thiobacillus denitrificans, Thiobacillus sajanensis and Thiobacillus sp. This is the first work reporting the simultaneous oxidation of sulfide and phenol in a denitrifying biofilm reactor.

Keywords
Biofilm; Denitrification; Phenol oxidation; Sulfide oxidation; 16S rRNA gene
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Phenol and sulfide oxidation in a denitrifying biofilm reactor and its microbial community analysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 1, January 2009, Pages 23–28
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us