caa a22 4500 463241088 CHVBK 20180405153312.0 cr unu---uuuuu 170326e20070601xx s 000 0 ger 10.1007/s00767-007-0021-1 doi (NATIONALLICENCE)springer-10.1007/s00767-007-0021-1 Modellrechnungen zur Quantifizierung von NA-Prozessen für den LCKW-Schadensfall in Karlsruhe-Ost/Killisfeld [Elektronische Daten] [W. Schäfer, F. Wickert, A. Tiehm] Quantification of NA processes for the CAH-contamination in Karlsruhe-Ost/Killisfeld with the help of a groundwater model Reactive transport of chlorinated aliphatic hydrocarbons (CAH) was simulated with a process oriented multi-species-model for a model domain of 4km2. The objective of the calculations was the quantification of NA-processes. The transport model was cut out of a larger scale flow model. The basic processes of the reaction model are the halorespiration leading to reductive CAH degradation and oxidative CAH degradation. The reactive transport model was calibrated employing reactive species concentrations observed in 40 sampling points. The crucial parameters during model calibration were the direction of groundwater flow, the CAH release rates, and the availability of electron donors (hydrogen) and oxygen. The mass balance for the end of the modelling period (12/31/2002) showed that 72 % of the CAH released were eliminated by NA-processes, i.e. they were mineralised or they left the model domain in form of ethene/ethane. The remaining 28 % of the total CAH passed the downstream model boundary mainly as vinyl chloride (VC). Springer-Verlag, 2007 reactive transport nationallicence natural attenuation nationallicence chloroethenes nationallicence field case nationallicence Schäfer W. Grundwassermodellierung, Steinbeis-Transferzentrum 734, Odenwaldstr. 6, 69168, Wiesloch, Deutschland aut Wickert F. G.U.C. GEO UMWELT CONSULT GmbH Dr.Wickert, Donaustraße 33, 76199, Karlsruhe, Deutschland aut Tiehm A. Abteilung Umweltbiotechnologie und Altlasten, DVGW-Technologiezentrum Wasser (TZW), Karlsruher Str. 84, 76139, Karlsruhe, Deutschland aut Grundwasser Springer-Verlag 12/2(2007-06-01), 108-124 1430-483X 12:2<108 2007 12 767 https://doi.org/10.1007/s00767-007-0021-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00767-007-0021-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schäfer W. Grundwassermodellierung, Steinbeis-Transferzentrum 734, Odenwaldstr. 6, 69168, Wiesloch, Deutschland aut NATIONALLICENCE 700 1- Wickert F. G.U.C. GEO UMWELT CONSULT GmbH Dr.Wickert, Donaustraße 33, 76199, Karlsruhe, Deutschland aut NATIONALLICENCE 700 1- Tiehm A. Abteilung Umweltbiotechnologie und Altlasten, DVGW-Technologiezentrum Wasser (TZW), Karlsruher Str. 84, 76139, Karlsruhe, Deutschland aut NATIONALLICENCE 773 0- Grundwasser Springer-Verlag 12/2(2007-06-01), 108-124 1430-483X 12:2<108 2007 12 767 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer