Search

Your search keyword '"Pekdeger, A."' showing total 19 results
Start Over Author "Pekdeger, A." Publication Year Range Last 10 years
19 results on '"Pekdeger, A."'

16. Geochemical processes during riverbank filtration in a polder region bordering the river Oder, Germany

Author

Asaf Pekdeger, Gudrun Massmann, and Christoph Merz

Subjects
Hydrology, geography, geography.geographical_feature_category, Aquifer, River water, Redox, law.invention, chemistry.chemical_compound, Groundwater chemistry, chemistry, law, Environmental science, Sulfate, Drainage, Groundwater, Filtration
Abstract

Large scale geochemical processes were investigated in the river-recharged aquifer of the Oderbruch polder. As a consequence of intensive drainage activities in the past 250 years, river water infiltrates permanently into this shallow confined aquifer. A lateral sequence of redox zones, characterized by either the presence or absence of a redox species, can be found with increasing time and travel distance in the aquifer. Up to 3 km from the river, reduction processes from oxygen respiration to sulfate reduction dominate the groundwater chemistry. Further inland, changing hydraulic conditions cause a predominant influence of the seepage water on the groundwater, resulting in a high sulfate, low pH zone.

Published
2020

Catalog

Books, media, physical & digital resources
See catalog results