Journal
BIORESOURCE TECHNOLOGY
Volume 263, Issue -, Pages 499-507Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.04.115
Keywords
Diaphorobacter polyhydroxybutyrativorans; Solid-phase denitrification; Poly (3-hydroxybutyrate-co-3-hydroxyvalerate); Microbial community
Funding
- Beijing Natural Science Foundation, China [8152016]
- National Natural Science Foundation of China, China [21077014]
- Special Program for Innovation Ability of Science & Technology of Beijing Academy of agriculture and Forestry Sciences, China [KJCX20161502-3]
- Beijing Agricultural Science & Technology Innovation Team, China [BAIC08-2017]
Ask authors/readers for more resources
A newly isolated and identified Diaphorobacter polyhydroxybutyrativorans strain (SL-205) was employed to enhance the denitrification performance of a laboratory-scale solid-phase denitrification (SPD) reactor using poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a carbon source, and dynamic variations in microbial communities in the reactor were investigated. Results indicated that bioaugmentation with strain SL-205 enabled rapid reactor startup and improved denitrification performance relative to the reactor inoculated with activated sludge. Illumina sequencing revealed that bioaugmentation also significantly increased Proteobacteria abundance along with increased influent nitrate loading. Additionally, two genera of PHBV-degrading denitrifers, Diaphorobacter and Acidovorax, exhibited higher abundance, and elevated expression of denitrificationassociated genes (narG, nirK, and nirS) was observed following bioaugmentation relative to the control at influent nitrate loading ranging from 1.28 g N/(L.d) to 1.6 g N/(L.d).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available