Journal
BIORESOURCE TECHNOLOGY
Volume 248, Issue -, Pages 98-103Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.07.188
Keywords
Nitrogen removal; Constructed wetlands; Limited aeration; Solid carbon source
Funding
- National Natural Science Foundation of China [51378021]
- National S & T Major Project [2012ZX07102-002]
Ask authors/readers for more resources
In this study, the performances of nitrogen removal in constructed wetlands using solid carbon source with limited aeration were investigated. The blends of poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) and polyacetic acid (PLA) were used as the carbon source and biofilm support. The performances of nitrogen removal, microbial abundance and microbial community structure in the biofilm attached on PHBV/PLA were investigated. Higher ammonia removal efficiency (91.00%) and total nitrogen removal efficiency (97.03%) than non-aerated constructed wetland (System NA) were achieved in constructed wetland with limited aeration (System A). The limited aeration decreased the average concentrations of COD in effluent. And, System A had higher microbial abundance than System NA. Pyrosequencing analysis showed that denitrifying bacteria Brevinema (41.85%) and Thiothrix (12.33%) were the predominant genus in the biofilm attached on the carbon source in System NA and System A, respectively.
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