The removal of selected Polycyclic Aromatic Hydrocarbons (PAHs) (i.e., phenanthrene, fluoranthene and pyrene) as well as a mixture of Linear Alkylbenzene Sulfonates (LAS) in three bench top Sequencing Batch Reactors (SBR) with a 2 L working volume were examined. The bioreactors were fed with increasing concentrations of these compounds, spiked in synthetic domestic wastewater over a time period of 48 days with a loading rate of 3 L.d-1 at 20°C.
In general the reactor operation was marginally affected by the presence of xenobiotics and at every pulse increase in the influent concentration, a respond in no less than three days was followed by a relative increase in the biodegradation and metabolism rate in the reactors and a decrease in effluent concentration to previous low levels. Percent removal of PAHs varied for each compound from an average of 93.7±5.4%, 95.8±2.1%, 76.8±10.3% and 89.3±4.5% for phenanthrene, fluoranthene, pyrene and the sum of these compounds respectively. Furthermore, percent removal of C10-C13 LAS homologues was found to be 95.4± 5.0 for C10, 96.9± 3.5 for C11, 96.0± 5.1 for C12 and 93.7± 8.5 for C13.
Copyright: | © Aristotle University of Thessaloniki |
Quelle: | 2nd International Conference 2009 (Juni 2009) |
Seiten: | 6 |
Preis: | € 5,00 |
Autor: | S. Terzakis Dr. Michael Fountoulakis S. Mamounas M. Patinioti Professor Nicolas Kalogerakis |
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Hochlauf der Wasserstoffwirtschaft
© Lexxion Verlagsgesellschaft mbH (8/2024)
Überblick über und Diskussion der Maßnahmen zum beschleunigten Ausbau
der Wasserstoffinfrastruktur in Deutschland
Die innerstaatliche Umsetzung des Pariser Klimaschutzübereinkommens
- ein Rechtsvergleich
© Lexxion Verlagsgesellschaft mbH (8/2024)
Like all public international law treaties, the Paris Climate Accords rely on national law for their implementation. The success of the agreement therefore depends, to a large extent, on the stepstaken or not taken by national governments and legislators as well as on the instruments and mechanisms chosen for this task. Against this background, the present article compares different approaches to the implementation of the Paris Agreement, using court decisions as a means to assess their (legal) effectiveness.
Klimaschutzrecht und Erzeugung erneuerbarer Energien in der Schweiz
© Lexxion Verlagsgesellschaft mbH (8/2024)
Verschachtelte Gesetzgebung unter politischer Ungewissheit