Associate Professor

Technical University of Denmark, DTU Environment

Miljoevej Building 113

+45 45 25 21 73

raj@er.dtu.dk

Research interests:

Groundwater geochemistry
Redox processes
H2 and bioenergetics
Geochemical modelling (PHREEQC, PHAST)

Advisor for PhD students:

Main advisor for:
Sanne Skov Nielsen - working on the possibilities of using ochre-sludge produced at waterworks for stabilizing As and cr in polluted soils.

Co-supervisor / official advisor
Søren Jessen - working on aspects of As in the red river
Helle Ugilt Sø - working on sorption of As and PO4 to calcite per se and in carbonate aquifers
Ellen Prip Bonnesen - working on the Danish carbonate aquifers

Key publications:

Jakobsen R. (2007): Redox microniches in groundwater: a model study on the geometric and kinetic conditions required for concomitant Fe-oxide reduction, sulfate reduction and methanogenesis. Water. Resources Research, 43, W12S12
Jakobsen R. and Cold L. (2007) Geochemistry at the sulfate reduction-methanogenesis transition zone in an anoxic aquifer - a partial equilibrium interpretation using 2D reactive transport modeling. Geochimica Cosmochimica Acta. 71, 1949-1966.
Heimann A.C., Batstone D. J. and Jakobsen R. (2006) Methanosarcina spp. Drive Vinyl Chloride Dechlorination via Interspecies Hydrogen Transfer. Appl. Environ. Microbiol. 72, 2942-2949.
Jakobsen R., Postma D. (1999) Redox zoning, rates of sulfate reduction and interactions with Fe reduction and methanogenesis in a shallow anoxic aquifer Rømø, Denmark. Geochim. Cosmochim. Acta, 63, 137-151.
Postma, D. and Jakobsen R. (1996) Redox zonation: Equilibrium constraints on the Fe(III)/SO4-reduction interface. Geochimica et Cosmochimica Acta, 60, p. 3169-3175.