oxidation of dissolved organic carbon (DOC), CH4, Fe (II), Mn (II), and NH4 from leachate
and reduction of O2, NO3 and SO4 from pristine groundwater. Knowledge on the relevance
of these processes is essential for the simulation and evaluation of natural attenuation (NA)
of pollution plumes. The occurrence of such biogeochemical processes was investigated at
the top fringe of a landfill leachate plume (Banisveld, the Netherlands). Hydrochemical depth …