Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Hydraulic characterization and optimization of total nitrogen removal in an aerated vertical subsurface flow treatment wetland
Autor Boog, J.; Nivala, J.; Aubron, T.; Wallace, S.; van Afferden, M.; Müller, R.A.;
Journal / Serie Bioresource Technology
Erscheinungsjahr 2014
Department UBZ;
Band/Volume 162
Sprache englisch;
POF III (gesamt) T34; T13;
Keywords Aerated vertical flow constructed wetland; Fluorescein; Intermittent aeration; Nitrogen removal; Tracer study
UFZ Querschnittsthemen RU2;
Abstract In this study, a side-by-side comparison of two pilot-scale vertical subsurface flow constructed wetlands (6.2 m× 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.
ID 14908
dauerhafte UFZ-Verlinkung http://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