Publication Details |
| Category | Text Publication |
| Reference Category | Conference papers |
| URL | http://cmwr2012.cee.illinois.edu/Papers/Special%20Sessions/Subsurface%20Biogeochemistry%20and%20Reactive%20Transport%20Modeling/Zolfaghari.Reza.pdf |
| 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 |
| Page From | 1 |
| Page To | 10 |
| 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 field 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. |
| 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, 1 - 10 |
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