Dzakpasu, M, Scholz, M 
ORCID: https://orcid.org/0000-0001-8919-3838, McCarthy, V and Jordan, S
2014,
'Nitrogen transformations and mass balance in an integrated constructed wetland treating domestic wastewater'
, Water Science and Technology, 70 (9)
, pp. 1496-1502.
Abstract
Nitrogen (N) transformations and removal in integrated constructed wetlands (ICWs) are often high, but the contributions of various pathways, including nitrification/denitrification, assimilation by plants and sediment storage, remain unclear. This study quantified the contributions of different N removal pathways in a typical multi-celled ICW system treating domestic wastewater. Findings showed near complete average total N retention of circa 95% at 102.3 g m2 yr1 during the 4-year period of operation. Variations in total N and NH4–N removal rates were associated with effluent flow volume rates and seasons. According to the mass balance estimation, assimilation by plants and sediment/soil storage accounted for approximately 23% and 20%, respectively, of the total N load removal. These were the major N removal route besides microbial transformations. Thus, the combination of plants with high biomass production offer valuable opportunities for improving ICW performance. The retrieval and use of sequestered N in the ICW sediment/soils require coherent management and provide innovative and valuable opportunities.
| Item Type: | Article |
|---|---|
| Themes: | Built and Human Environment |
| Schools: | Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre |
| Journal or Publication Title: | Water Science and Technology |
| Publisher: | IWA Publishing |
| Refereed: | Yes |
| ISSN: | 0273-1223 |
| Related URLs: | |
| Funders: | Funder not known |
| Depositing User: | B Li |
| Date Deposited: | 16 Mar 2015 16:54 |
| Last Modified: | 15 Nov 2019 14:52 |
| URI: | http://usir.salford.ac.uk/id/eprint/33780 |
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