Détérioration de la qualité des eaux souterraines à proximité d'une décharge publique en activité, en Malaisie occidentale

Translated title of the contribution: Deterioration of groundwater quality in the vicinity of an active open-tipping site in West Malaysia

Bahaa eldin E A Rahim, I. Yusoff, Abdul Rahim Samsudin, Wan Zuhairi Wan Yaacob, A. G M Rafek

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

There is an urgent need for characterization of leachate arising from waste disposal to ensure a corresponding effective leachate management policy. Field and laboratory studies have been carried out to investigate the impact of municipal landfill leachate on the underlying groundwater at a site in West Malaysia. The solid waste was disposed of directly onto an unprotected natural soil formation. This situation was made worse by the shallow water table. The hydrochemical composition of groundwater in the vicinity of the site (background) is a dilute mixed cation, bicarbonate water. The high ionic balance error of ~13.5% reveals that the groundwater body underneath the site was a highly contaminated leachate rather than contaminated groundwater. Elevated concentration of chloride (355.48 mg/L), nitrate (10.40 mg/L as NO3), nitrite (14.59 mg/L), ammoniacal-N (11.61 mg/L), sodium (227.56 mg/L), iron (0.97 mg/L), and lead (0.32 mg/L) measured downgradient indicate that the contamination plume has migrated further away from the site. In most cases, the concentration of these contamination indicators, together with the ranges of sodium percentage (66.3-89.9%) and sodium adsorption ratio (10.1-19.7%), were found to be considerably higher than the limit values of safe water for both domestic and irrigation purposes, respectively.

Original languageFrench
Pages (from-to)997-1006
Number of pages10
JournalHydrogeology Journal
Volume18
Issue number4
DOIs
Publication statusPublished - Jun 2010

Fingerprint

leachate
groundwater
sodium
bicarbonate
waste disposal
solid waste
nitrite
water table
shallow water
plume
cation
chloride
irrigation
nitrate
adsorption
iron
water
contamination
soil formation
limit value

Keywords

  • Inorganic contaminants
  • Ionic balance error
  • Malaysia
  • Sodium adsorption ratio (SAR)
  • Waste disposal

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Water Science and Technology

Cite this

Détérioration de la qualité des eaux souterraines à proximité d'une décharge publique en activité, en Malaisie occidentale. / Rahim, Bahaa eldin E A; Yusoff, I.; Samsudin, Abdul Rahim; Wan Yaacob, Wan Zuhairi; Rafek, A. G M.

In: Hydrogeology Journal, Vol. 18, No. 4, 06.2010, p. 997-1006.

Research output: Contribution to journalArticle

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abstract = "There is an urgent need for characterization of leachate arising from waste disposal to ensure a corresponding effective leachate management policy. Field and laboratory studies have been carried out to investigate the impact of municipal landfill leachate on the underlying groundwater at a site in West Malaysia. The solid waste was disposed of directly onto an unprotected natural soil formation. This situation was made worse by the shallow water table. The hydrochemical composition of groundwater in the vicinity of the site (background) is a dilute mixed cation, bicarbonate water. The high ionic balance error of ~13.5{\%} reveals that the groundwater body underneath the site was a highly contaminated leachate rather than contaminated groundwater. Elevated concentration of chloride (355.48 mg/L), nitrate (10.40 mg/L as NO3), nitrite (14.59 mg/L), ammoniacal-N (11.61 mg/L), sodium (227.56 mg/L), iron (0.97 mg/L), and lead (0.32 mg/L) measured downgradient indicate that the contamination plume has migrated further away from the site. In most cases, the concentration of these contamination indicators, together with the ranges of sodium percentage (66.3-89.9{\%}) and sodium adsorption ratio (10.1-19.7{\%}), were found to be considerably higher than the limit values of safe water for both domestic and irrigation purposes, respectively.",
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