TY - GEN
T1 - Denitrification coupled to pyrite oxidation and implications for groundwater quality
T2 - 12th International Symposium on Water-Rock Interaction, WRI-12
AU - Zhang, Y.
AU - Slomp, C. P.
AU - Van Cappellen, P.
AU - Broers, H. P.
AU - Passier, H. F.
PY - 2007
Y1 - 2007
N2 - Because pyrite oxidation increases the aqueous concentrations of sulphate and trace metals and also modifies the pH, it can significantly affect groundwater quality. This study focuses on the occurrence and effects of denitrification in 1996 and 2006 at Oostrum, the Netherlands. Results shows denitrification coupled to pyrite oxidation as the main pathway removing nitrate from groundwater in the agricultural area and the compositional trends are similar over a 10-year period, although the nitrate concentrations dropped due to decreasing fertilizer input. In contrast, in the forested area the concentrations of pollutants (nitrate, chloride and trace metals) have risen since 1996, as a result of contaminated groundwater flow originating from the agricultural area.
AB - Because pyrite oxidation increases the aqueous concentrations of sulphate and trace metals and also modifies the pH, it can significantly affect groundwater quality. This study focuses on the occurrence and effects of denitrification in 1996 and 2006 at Oostrum, the Netherlands. Results shows denitrification coupled to pyrite oxidation as the main pathway removing nitrate from groundwater in the agricultural area and the compositional trends are similar over a 10-year period, although the nitrate concentrations dropped due to decreasing fertilizer input. In contrast, in the forested area the concentrations of pollutants (nitrate, chloride and trace metals) have risen since 1996, as a result of contaminated groundwater flow originating from the agricultural area.
UR - https://www.scopus.com/pages/publications/84863283654
M3 - Conference contribution
AN - SCOPUS:84863283654
SN - 9780415451383
T3 - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
SP - 1153
EP - 1156
BT - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
Y2 - 31 July 2007 through 4 August 2007
ER -
