The potential impact of leachate-contaminated groundwater of an ex-landfill site at Taman Beringin Kuala Lumpur, Malaysia

Mustapha Atta, Wan Zuhairi Wan Yaacob, Othman Jaafar

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Spreading of leachates to soil, surface and groundwater aquifers is a prevailing problem with unlined landfills, causing many problems with adverse impacts on the surrounding environment. The impact of leachate contamination on groundwater quality was investigated from unlined ex-landfill site at Taman Beringin in Malaysia to identify the characteristics of the groundwater, and the possible impacts on the environment. Various physico-chemical parameters including: temperature, pH, color, TDS, TSS, BOD, COD, S2−, F, Cl, NH3-N, (Formula Presented.), (Formula Presented.), and heavy metals: Ag, As, Cd, Cu, Cr3+, Cr6+, Fe, Hg, Ni, Pb, Zn, Mn, B, Se, Sn and Ba, were collected from four (4) monitoring wells and six (6) surface raw leachate points between December 2012 and January 2013. Physico-chemical analyses of sampled leachates and groundwater followed standard analytical methods. The results showed considerable impact of leachates on groundwater with high concentration of most chemical parameters in groundwater samples: COD (101.75 ± 99.42), BOD (28 ± 30.99), NH3-N (31.10 ± 19.12), F (0.72 ± 0.32) and heavy metal; Pb (0.042 ± 0.045), Ni (0.016 ± 0.006), Fe (0.41 ± 0.68) have exceeded the Malaysian National Drinking Water Quality Standard and National Water Quality Standards CLASS II A. Remedial measures are suggested to prevent further spreading of leachates into rivers via groundwater flow. In addition, combined process of routine chemical treatment prior to biological treatment is necessary to improve the existing leachate quality to minimize the effects on the surrounding environment.

Original languageEnglish
Pages (from-to)3913-3923
Number of pages11
JournalEnvironmental Earth Sciences
Volume73
Issue number7
DOIs
Publication statusPublished - 2015

Fingerprint

landfills
leachates
Land fill
Malaysia
leachate
Groundwater
landfill
groundwater
Biochemical oxygen demand
water quality standards
Heavy Metals
Heavy metals
Water quality
heavy metals
heavy metal
Groundwater flow
water quality
biological treatment
Aquifers
Potable water

Keywords

  • Ammonical nitrogen
  • Biological oxygen demand (BOD)
  • Groundwater contamination
  • Landfill leachate
  • Water Quality Standards

ASJC Scopus subject areas

  • Soil Science
  • Environmental Chemistry
  • Water Science and Technology
  • Pollution
  • Global and Planetary Change
  • Geology
  • Earth-Surface Processes

Cite this

The potential impact of leachate-contaminated groundwater of an ex-landfill site at Taman Beringin Kuala Lumpur, Malaysia. / Atta, Mustapha; Wan Yaacob, Wan Zuhairi; Jaafar, Othman.

In: Environmental Earth Sciences, Vol. 73, No. 7, 2015, p. 3913-3923.

Research output: Contribution to journalArticle

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abstract = "Spreading of leachates to soil, surface and groundwater aquifers is a prevailing problem with unlined landfills, causing many problems with adverse impacts on the surrounding environment. The impact of leachate contamination on groundwater quality was investigated from unlined ex-landfill site at Taman Beringin in Malaysia to identify the characteristics of the groundwater, and the possible impacts on the environment. Various physico-chemical parameters including: temperature, pH, color, TDS, TSS, BOD, COD, S2−, F−, Cl−, NH3-N, (Formula Presented.), (Formula Presented.), and heavy metals: Ag, As, Cd, Cu, Cr3+, Cr6+, Fe, Hg, Ni, Pb, Zn, Mn, B, Se, Sn and Ba, were collected from four (4) monitoring wells and six (6) surface raw leachate points between December 2012 and January 2013. Physico-chemical analyses of sampled leachates and groundwater followed standard analytical methods. The results showed considerable impact of leachates on groundwater with high concentration of most chemical parameters in groundwater samples: COD (101.75 ± 99.42), BOD (28 ± 30.99), NH3-N (31.10 ± 19.12), F− (0.72 ± 0.32) and heavy metal; Pb (0.042 ± 0.045), Ni (0.016 ± 0.006), Fe (0.41 ± 0.68) have exceeded the Malaysian National Drinking Water Quality Standard and National Water Quality Standards CLASS II A. Remedial measures are suggested to prevent further spreading of leachates into rivers via groundwater flow. In addition, combined process of routine chemical treatment prior to biological treatment is necessary to improve the existing leachate quality to minimize the effects on the surrounding environment.",
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