Publication Details

Reference Category Conference contributions
DOI / URL link
Title (Primary) Multi-component reactive transport modeling of PCE degradation at the pilot scale constructed wetland Bitterfeld, Germany
Title (Secondary) Proceedings of the XIX International Conference on Water Resources (CMWR 2012), University of Illinois at Urbana-Champaign, June 17-22,2012, Urbana, Illinois, USA
Author Zolfaghari, R.; Chen, Z.; Shao, H.B.; Kuschk, P.; Kolditz, O.;
Year 2012
Department UBT; ENVINF;
Language englisch;
Keywords Reactive Transport Modeling; PCE degredation; Dechlorination
Abstract Used as solvent and dry cleaner, PCE (perchloroethylene) is a widespread groundwater contaminant in industrialized countries. Recently, horizontal subsurface ow constructed wetlands (CWs) were proved to be an attractive alternative for treating PCE bearing groundwater [2]. In this context, numerical modeling is a necessary tool in evaluating the performance of CWs, and in studying and predicting the evolution of PCE plumes in CWs. In this work, a multi-component reactive transport model is used to analyze the removal processes of chlorinated ethenes in CWs. The numerical code OpenGeoSys has been used to simulate the transport and kinetically controlled PCE degradation reactions with the operator splitting sequential noniterative approach (SNIA). Parameters controlling the PCE degradation process is calibrated against eld measured concentrations using the parallel-PEST software on a linux cluster. The developed model is applied to analyze transport and biodegradation processes occurring at an unplanted pilot-scale CW scenario. The model captures the fate and transport of PCE, TCE, DCE, VC and ethene. The numerical model used in this study is a useful engineering tool for integrating treatment performance data within a rational modeling framework, thus, would be used for designing CWs treating waters contaminated by chlorinated ethenes.
ID 14347
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=14347
Zolfaghari, R., Chen, Z., Shao, H.B., Kuschk, P., Kolditz, O. (2012):
Multi-component reactive transport modeling of PCE degradation at the pilot scale constructed wetland Bitterfeld, Germany
Proceedings of the XIX International Conference on Water Resources (CMWR 2012), University of Illinois at Urbana-Champaign, June 17-22,2012, Urbana, Illinois, USA
University of Illinois at Urbana-Champaign, Champaign, IL, p. 1 - 10