Metal accumulation in an artificially recharged gravel pit lake used for drinking water supply

P.N. Mollema, P.J. Stuijfzand, M.H.A. Juhasz-Holterman, P.M.J.A. Van Diepenbeek, M. Antonellini

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Gravel pit lakes offer a variety of uses after excavation has ceased. One of those uses is the storage, infiltration, aquifer passage, and production of drinking water. We have investigated such a gravel pit lake in The Netherlands that is a state of the art drinking water production facility. The gravel pit lake is a flow-through lake, fed naturally by groundwater (~17%) and rainwater (~6%), and artificially with Meuse River water (~77%). The average concentrations of Cd, Cr, Cu, Ni, Pb and Zn in the lake's bottom sediments have increased over a 10year period. Acidifying redox reactions caused by lowering of the water table and farmland fertilization upstream from the lake explain the mobilization of metals in the soil and subsequent transport with groundwater towards the lake. Dissolved metals (Al, Cd, Cr, Cu, Fe Mn, Ni and Zn) and PO
Original languageEnglish
Pages (from-to)35-51
JournalJournal of Geochemical Exploration
Volume150
DOIs
Publication statusPublished - 2015

Bibliographical note

PT: J; NR: 82; TC: 1; J9: J GEOCHEM EXPLOR; PG: 17; GA: CB6HH; UT: WOS:000349727600004

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