Abstract
The main objective of the present study was to evaluate the difference in removal efficiency (RE) of nitrogen and phosphorus compounds based on the seasonal changes in a full-scale gravel-based horizontal subsurface flow constructed wetland located in Interior Central Region of Portugal. The RE of nitrogen and phosphorus compounds were relatively poor, but the results allow us to conclude that season had a significant (p<0.05) effect on the RE of TN, NH4+-N, NOx-N, TP and DP, with higher values in spring-summer period (10.4%, 10.4%, 3.4%, 27.5% and 26.1%, respectively) than in autumn-winter (0%, -7.7%, -9.8%, 12.9% and 0%, respectively).
Original language | English |
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Pages (from-to) | 225-232 |
Number of pages | 8 |
Journal | Energy Procedia |
Volume | 136 |
DOIs | |
Publication status | Published - 1 Jan 2017 |
Event | 4th International Conference on Energy and Environment Research, ICEER 2017 - Porto, Portugal Duration: 17 Jul 2017 → 20 Jul 2017 |
Keywords
- Constructed wetlands
- domestic wastewater
- horizontal subsurface flow
- nutrinet removal
- seasonal variation