Datum
2024-05-21Schlagwort
500 Naturwissenschaften Organischer SchadstoffAktivkohleAbwasseraufbereitungGelöster organischer StoffAdsorptionOberflächendiffusionDOCMetadata
Zur Langanzeige
Aufsatz
Modelling competitive adsorption of organic micropollutants onto powdered activated carbon in continuous stirred tank reactors for advanced wastewater treatment
Zusammenfassung
This work investigates the validation and application of a competitive model approach for full-scale wastewater treatment plants (WWTP) with external recirculation of partially loaded powdered activated carbon (PAC) for removal of organic micropollutants (OMP). It is based on the ideal adsorbed solution theory (IAST) for multisolute mixtures combined with calibration of fictive organic components and correction of single-solute model parameters for OMP by use of the tracer model (TRM). Adsorption kinetics are represented by a pseudo first order reaction (PFO) and compared to mass transfer calculated with the homogenous surface diffusion model (HSDM). Model validation with operational data from two different WWTPs showed a strong dependency of model results on the batch sample quality used for model calibration. In contrast, the kinetic approach is of less importance for predicting full-scale OMP removal with long PAC sludge retention times. Further model application demonstrated that external PAC recirculation significantly improves the OMP removal with regard to both adsorption capacity and compensation of competitive effects of Dissolved Organic Carbon (DOC).
Zitierform
In: Water Research Volume 258 (2024-05-21) eissn:1879-2448Förderhinweis
Gefördert im Rahmen des Projekts DEALZitieren
@article{doi:10.17170/kobra-2024060610288,
author={Parniske, Janna and Atallah Al-asad, Hana and Qian, Jueying and Morck, Tobias},
title={Modelling competitive adsorption of organic micropollutants onto powdered activated carbon in continuous stirred tank reactors for advanced wastewater treatment},
journal={Water Research},
year={2024}
}
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2024-06-10T08:18:49Z 2024-06-10T08:18:49Z 2024-05-21 doi:10.17170/kobra-2024060610288 http://hdl.handle.net/123456789/15823 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ organic micropollutants (OMP) removal powdered activated carbon (PAC) dissolved organic matter (DOM) competitive adsorption homogenous surface diffusion model (HSDM) full-scale model validation 500 Modelling competitive adsorption of organic micropollutants onto powdered activated carbon in continuous stirred tank reactors for advanced wastewater treatment Aufsatz This work investigates the validation and application of a competitive model approach for full-scale wastewater treatment plants (WWTP) with external recirculation of partially loaded powdered activated carbon (PAC) for removal of organic micropollutants (OMP). It is based on the ideal adsorbed solution theory (IAST) for multisolute mixtures combined with calibration of fictive organic components and correction of single-solute model parameters for OMP by use of the tracer model (TRM). Adsorption kinetics are represented by a pseudo first order reaction (PFO) and compared to mass transfer calculated with the homogenous surface diffusion model (HSDM). Model validation with operational data from two different WWTPs showed a strong dependency of model results on the batch sample quality used for model calibration. In contrast, the kinetic approach is of less importance for predicting full-scale OMP removal with long PAC sludge retention times. Further model application demonstrated that external PAC recirculation significantly improves the OMP removal with regard to both adsorption capacity and compensation of competitive effects of Dissolved Organic Carbon (DOC). open access Parniske, Janna Atallah Al-asad, Hana Qian, Jueying Morck, Tobias doi:10.1016/j.watres.2024.121806 Organischer Schadstoff Aktivkohle Abwasseraufbereitung Gelöster organischer Stoff Adsorption Oberflächendiffusion DOC publishedVersion eissn:1879-2448 Water Research Volume 258 false 121806
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