Penyiasatan infiltrasi bahan larut resap di sekitar tapak pelupusan sampah ampar tenang, dengkil

Translated title of the contribution: Investigation of leachate infiltration around ampar tenang, dengkil waste disposal site

Umar Hamzah, Chia See Chieh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A geophysical survey using vertical electrical sounding (VES) technique was carried out to investigate the extent of leachate movement into the surrounding area of the waste disposal site at Dengkil Selangor. The size of the landfill is about 4.05 hectare and it is still in active used as an open dumping area. VES is one of the geophysical survey techniques that can be used to investigate the changes in the electrical resistivity properties of subsurface materials. This technique is often being used in the groundwater exploration. The purpose of this survey is to study the extent of leachate infiltration into the surrounding ground of the waste disposal dumping site. In this technique, the current and the potential electrodes were increased progressively and this will increase the depth penetration of the electrical current. The Schlumberger electrode configuration was used for the data collection in the field and the ABEM SAS 300C resistivity meter was used for the resistance measurement at this landfill. The spacing of current electrodes used in this study wasfrom 2.0 m to 62.3 m and the potential electrodes spacing was from 0.3 m to 3.0 m. Geologically, the study area consists of siltstone, clay and chert of Kenny Hill Formation. In this study, the extent of contamination of the subsurface soil was characterized and interpreted based on resistivity and litological information from the nearest borehole. The field data was plotted and modeled by using RESIX software. Based on data analysis and laboratory results of previous researcher, areas with electrical resistivity less than 30 Ωm will be considered as leachate-contaminated zone. Zone with resistivity greater than 60 ΩM will be interpreted as leachate-free region. The leachate material was detected at 10 m depth. The leachate also has moved laterally to about 120 m towards the east and 180 m towards the north from the disposal area.

Original languageUndefined/Unknown
Pages (from-to)161-168
Number of pages8
JournalSains Malaysiana
Volume37
Issue number2
Publication statusPublished - Jun 2008

Fingerprint

waste disposal
leachate
infiltration
electrical resistivity
electrode
vertical electrical sounding
geophysical survey
landfill
spacing
groundwater exploration
chert
siltstone
penetration
borehole
software
clay
soil
dumping
material

Keywords

  • Geophysical survey
  • Leachate
  • Resistivity technique
  • Waste disposal site

ASJC Scopus subject areas

  • General

Cite this

Penyiasatan infiltrasi bahan larut resap di sekitar tapak pelupusan sampah ampar tenang, dengkil. / Hamzah, Umar; Chieh, Chia See.

In: Sains Malaysiana, Vol. 37, No. 2, 06.2008, p. 161-168.

Research output: Contribution to journalArticle

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