Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.biortech.2014.03.100 |
| Title (Primary) | Hydraulic characterization and optimization of total nitrogen removal in an aerated vertical subsurface flow treatment wetland |
| Author | Boog, J.; Nivala, J.; Aubron, T.; Wallace, S.; van Afferden, M.; Müller, R.A. |
| Journal | Bioresource Technology |
| Year | 2014 |
| Department | UBZ |
| Volume | 162 |
| Page From | 166 |
| Page To | 174 |
| Language | englisch |
| Keywords | Aerated vertical flow constructed wetland; Fluorescein; Intermittent aeration; Nitrogen removal; Tracer study |
| UFZ wide themes | RU2; |
| Abstract | In this study, a side-by-side comparison of two pilot-scale vertical subsurface flow constructed wetlands (6.2 m2 × 0.85 m, qi = 95 L/m2 d, τn = 3.5 d) handling primary treated domestic sewage was conducted. One system (VA-i) was set to intermittent aeration while the other was aerated continuously (VAp-c). Intermittent aeration was provided to VA-i in an 8 h on/4 h off pattern. The intermittently aerated wetland, VA-i, was observed to have 70% less nitrate nitrogen mass outflow than the continuously aerated wetland, VAp-c. Intermittent aeration was shown to increase treatment performance for TN while saving 33% of running energy cost for aeration. Parallel tracer experiments in the two wetlands showed hydraulic characteristics similar to one Continuously Stirred Tank Reactor (CSTR). Intermittent aeration did not significantly affect the hydraulic functioning of the system. Hydraulic efficiencies were 78% for VAp-c and 76% for VA-i. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=14908 |
| Boog, J., Nivala, J., Aubron, T., Wallace, S., van Afferden, M., Müller, R.A. (2014): Hydraulic characterization and optimization of total nitrogen removal in an aerated vertical subsurface flow treatment wetland Bioresour. Technol. 162 , 166 - 174 |
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