TY - GEN
T1 - Geochemical processes and their modelling at the fresh and salt water mixing zone
AU - Jinno, K.
AU - Hosokawa, T.
AU - Akagi, K.
AU - Hiroshiro, Y.
AU - Yasumoto, J.
PY - 2008/11/7
Y1 - 2008/11/7
N2 - Oxidation-reduction geochemical processes coupled with mass transport in a coastal aquifer is a unique subsurface environmental phenomenon to model. When a porous material is contaminated by organic carbons, nitrate is denitrified and manganese dioxide and oxi-iron hydroxide would be reduced. However, it is expected that the reduced divalent iron is oxidized once again by seawater when discharged to the sea. The paper discusses a numerical model of transport and geochemical reaction processes along the mixing zone of fresh and reduced salt water in a coastal aquifer. By comparing the numerical solution with experimental observations for the precipitation of divalent iron along the mixing zone, the validity of the model is demonstrated.
AB - Oxidation-reduction geochemical processes coupled with mass transport in a coastal aquifer is a unique subsurface environmental phenomenon to model. When a porous material is contaminated by organic carbons, nitrate is denitrified and manganese dioxide and oxi-iron hydroxide would be reduced. However, it is expected that the reduced divalent iron is oxidized once again by seawater when discharged to the sea. The paper discusses a numerical model of transport and geochemical reaction processes along the mixing zone of fresh and reduced salt water in a coastal aquifer. By comparing the numerical solution with experimental observations for the precipitation of divalent iron along the mixing zone, the validity of the model is demonstrated.
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M3 - Conference contribution
AN - SCOPUS:55249124990
SN - 9781901502497
T3 - IAHS-AISH Publication
SP - 191
EP - 196
BT - Proceedings of an International Conference on Calibration and Reliability in Groundwater Modelling
T2 - International Conference on Calibration and Reliability in Groundwater Modelling: Credibility of Modelling, ModelCARE2007
Y2 - 9 September 2007 through 13 September 2007
ER -