Bassin d'Oued Serrat: Terrils et rejets domestiques, reconnaissance des métaux lourds et polluants, impact sur les eaux souterraines (Nord-ouest de la Tunisie)

Translated title of the contribution: The Oued Serrat: Mining activity, ground water and dispersion of base metals in natural environments (North-western Tunisia)

Ammar Mlayah*, Eduardo Anselmoferr Eira da Silva, Nouri Hatira, Salah Jellali, Fethi Lachaal, Abdel Krim Charef, Fernando Noronha, Chedly Ben Hamza

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The aims of this work were to determine the impacts of releases from two iron and phosphate mines (North West Tunisia) on the physico-chemical water composition of the related alluvial aquifer system. Samples from tailings, soil and water wells were collected and analyzed. The analytical results of tailing samples showed that this matrix contains high concentrations of heavy metals (mainly Cd, Cr, Pb and Zn). These metals were also detected at significant levels in the fine soil fraction downstream from the mine waste discharge due to transport by wind and water. The heavy metal concentrations in groundwater showed that the metal transport from the tailings is completely attenuated by the soil constituents. Overall, the physic-chemical quality of the groundwater is good, except for nitrates, which are present at relatively high concentrations due to intensive agricultural practices and the absence of urban wastewater treatment plants.

Translated title of the contributionThe Oued Serrat: Mining activity, ground water and dispersion of base metals in natural environments (North-western Tunisia)
Original languageFrench
Pages (from-to)159-175
Number of pages17
JournalRevue Des Sciences De L'Eau
Volume24
Issue number2
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • Geochemistry
  • Groundwater pollution
  • Heavy metals
  • Mine tailings

ASJC Scopus subject areas

  • Water Science and Technology

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