Effect of gradational inflow or step-feeding is tested through experiments in a horizontal subsurface flow pilot-scale constructed wetland. The unit is a 3 m long and 0.75 m wide metal tank containing cobbles, where the vegetation (common reed) is planted. Experiments lasted from February 2007 to February 2008.
Water samples were collected at the inflow, two intermediate points and the outflow of the system, and were analyzed in the laboratory for BOD, COD, nitrogen and phosphorus concentrations. A comparison was made for removals under various step-feeding schemes, including feeding only at the inflow. Results show that step-feeding application had a positive effect on wetland performance, since removal rates of most constituents were increased.
|Copyright:||© Aristotle University of Thessaloniki|
|Source:||2nd International Conference 2009 (Juni 2009)|
|Autor:||M.Sc., PhD Candidate Alexandros Stefanakis |
Vassilios A. Tsihrintzis
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Biosorption of zinc from industrial wastewater using bacteria resistance
© Aristotle University of Thessaloniki (6/2009)
In this study in order to determine and investigate the effect of zinc concentration on bacteria resistance threshold, two samples of industrial wastewater(1 and 2) were collected. The concentrations of zinc in samples were 36 and 17 gL-1. In order to access heterotrophic plate count, wastewater samples were cultured on nutrient agar by pour plate method and to count and isolate the Zn resistant bacteria, samples were cultured by spread plate method on PHG-II agar include of 0.5 mML-1 of Zn in three dilution and two replications.
Wenn jeder Tropfen zählt - Singapur – globales Zentrum für nachhaltiges Wasser-Management
© Deutscher Fachverlag (DFV) (7/2007)
Mangels eigener Quellen setzt Singapur auf eine viergleisige Strategie, in deren Mittelpunkt die Schließung des Wasserkreislaufs steht. Im Zuge der Umsetzung entwickelt sich der asiatische Tigerstaat zum internationalen Zentrum für nachhaltige Wasser-Technologien.
Exploitation of an agroindustrial wastewater: from OMW to biofuels Premium
© IWWG International Waste Working Group (11/2006)
Owing to acidity, phenolic compounds, suspended substances, high organic content and phytotoxicity, the wastewater coming from the oil mills (OMW) is considered as one of the most polluting agroindustrial effluents.
Probenahme- und Analyseverfahren zur kostengünstigen Überwachung von Arzneimittelwirkstoffen im Abwasser
© DIV Deutscher Industrieverlag GmbH (6/2011)
Fachbeitrag zum vom BMWi geförderten Forschungsprojekt der GBA Gesellschaft für Bioanalytik Hamburg mbH
SUSAN - Sustainable and Safe Re-use of Municipal Sewage Sludge for Nutrient Recovery
© DIV Deutscher Industrieverlag GmbH (8/2010)
Large scale considerations of the thermo-chemical heavy metal removal from sewage sludge for the safe recycle of Phosphorus