Back to Search
Start Over
Biological denitrification using poly(butanediol succinate) as electron donor.
- Source :
-
Applied Microbiology & Biotechnology . Jul2016, Vol. 100 Issue 13, p6047-6053. 7p. - Publication Year :
- 2016
-
Abstract
- Poly(butanediol succinate) (PBS), a biodegradable polymer, was used as both solid carbon source and biofilm carrier for biological nitrate removal process, in which PBS was filled in a packed-bed bioreactor. The denitrification performance and the microbial diversity of biofilm attached on the surface of PBS were investigated. The experimental results showed that the volumetric denitrification rate was 0.60 kg m day when NO-N loading rate was 0.63 kg m day, and the average NO-N concentration was below 0.20 mg L. The effluent pH value decreased slightly from a range of 6.98-7.87 to 6.46-7.18. The analysis of microbial community structure of biofilm by pyrosequencing method showed that Proteobacteria was the most abundant phylum (89.87 %), and β-Proteobacteria represented the most abundant class. Among the 76 identified genera, Dechloromonas (10.26 %), Alicycliphilus (9.15 %), Azospira (8.92 %), and Sinobacteraceae-uncultured (8.75 %) were the abundant genera. PBS, as a promising alternative carbon source, is a suitable solid carbon source and biofilm carrier for nitrate removal. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DENITRIFICATION
*POLYBUTENES
*ELECTRON donors
*BIODEGRADABLE plastics
*BIOFILMS
Subjects
Details
- Language :
- English
- ISSN :
- 01757598
- Volume :
- 100
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Applied Microbiology & Biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 116171002
- Full Text :
- https://doi.org/10.1007/s00253-016-7435-6