Leachate Migration Delineation using 2-D Electrical Resistivity Imaging (2-DERI) at Gampong Jawa, Banda Aceh

 

Dr. Muhammad Syukri

Senior Lecturer, Geophysics Section, Department of Physics, Faculty of Sciences, Syiah Kuala University, Banda Aceh, Indonesia
e-mail: m.syukri@unsyiah.net

Dr. Rosli Saad

Senior Lecturer, Geophysics Section, School of Physics, Universiti Sains Malaysia, Penang, Malaysia
e-mail: rosli@usm.my

Marwan

Lecturer (MS.), Geophysics Section, Department of Physics, Faculty of Sciences, Syiah Kuala University, Banda Aceh, Indonesia
e-mail: marwan.fisika@gmail.com

 

 ABSTRACT

The study was conducted at Gampong Jawa dumpsite area, Banda Aceh, Indonesia, to delineate the preferential leachate migration pathways using 2-DERI method. The horizontal and vertical extent of leachate plumes were delineated by the geo-electrical imaging as a response to the varying electrical resistivity in the contaminated area. The topmost layer is reclaim soil, consists of clayey sand and lateritic clay. This formation is followed by marine alluvium as fresh basement. Qualitative interpretation of the 2-DERI indicates that the depth of water table in the study area varies between 1.0 and 6m due to variations of fresh basement. The inverse model resistivity was plotted in order to look the spatial distribution of the leachate plume.

Keywords: 2-D electrical resistivity imaging (2-DERI), leachate migration pathways, brackish water

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