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Gewählte Publikation:

Sleytr, K; Tietz, A; Langergraber, G; Haberl, R; .
(2007): Investigation of bacterial removal during the filtration process in constructed wetlands.
Sci Total Environ. 2007; 380(1-3):173-180 FullText FullText_BOKU

Abstract:
In this study, bacterial removal efficiencies of planted and unplanted subsurface vertical flow constructed wetlands are compared. Indicator organisms such as faecal coliforms (Escherichia coli, total coliforms) and enterococci, and a number of heterotrophic bacteria (heterotrophic plate counts) have been analysed from the influent and effluent of the constructed wetlands as well as at different depths (water and substrate samples). Furthermore dry matter content and total organic carbon (TOC) have been analysed and correlated. The investigated systems show a high removal rate for indicator organisms (a log removal rate of 2.85 for HPC, 4.35 for E coli, 4.31 for total coliforms and 4.80 for enterococci was observed). In general no significant difference in the removal efficiency of planted and unplanted vertical flow beds could be measured. Only enterococci measured in the substrate samples of the main layer of the filter could a statistically significant difference be observed. (C) 2007 Elsevier B.V. All rights reserved.
Autor*innen der BOKU Wien:
Haberl Raimund
Langergraber Günter
Sleytr Kirsten
Find related publications in this database (using NML MeSH Indexing)
Bacteria/metabolism*;Biodegradation, Environmental;Biomass;Filtration;Water Microbiology*;Water Movements;Water Pollutants, Chemical/analysis;Water Pollutants, Chemical/metabolism*;Water Purification/methods*;Wetlands*;

Find related publications in this database (Keywords)
bacterial removal
indicator organisms
constructed wetlands
subsurface vertical flow
wastewater treatment


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