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http://dx.doi.org/10.9720/kseg.2012.4.409

Characterization of an Animal Carcass Disposal Site using Electrical Resistivity Survey  

Ko, Jin-Suk (Department of Energy and Resource Engineering, Chosun University)
Kim, Bong-Ju (Department of Energy and Resource Engineering, Chosun University)
Choi, Nag-Choul (Environmental Functional Materials & Biocolloids Laboratory, Department of Rural Systems Engineering, Seoul National University)
Kim, Song-Bae (Environmental Functional Materials & Biocolloids Laboratory, Department of Rural Systems Engineering, Seoul National University)
Park, Jeong-Ann (Environmental Functional Materials & Biocolloids Laboratory, Department of Rural Systems Engineering, Seoul National University)
Park, Cheon-Young (Department of Energy and Resource Engineering, Chosun University)
Publication Information
The Journal of Engineering Geology / v.22, no.4, 2012 , pp. 409-416 More about this Journal
Abstract
In this study, an electrical resistivity survey and a drilling investigation were conducted at an animal carcass disposal site. Chemical analysis of leachate collected from the site was also performed (sampling times: May 2011 and June 2012). Five lines of dipole-dipole electrical resistivity surveys were carried out, along with drilling investigations at 3 points within the disposal areas and 11 points near the disposal site. Two-dimensional inverse modeling of the collected resistivity data was performed to evaluate the properties (size, depth, and form) of the disposal site. Leachate analysis showed that pH of leachate decreased from 7.4 to 6.7, while Eh changed from -358 mV to -48 mV over time. In addition, dissolved ions increased due to the progression of carcass decomposition. Results of the electrical resistivity survey indicated that low resistivity zones (minimum value, $0.64{\Omega}m$) existed at a depth of 8 m from the surface. Considering the bedrock location and carcass disposal depth, there was no evidence of bedrock contamination by leachate. The results of the electrical resistivity survey are consistent with those of the drilling investigation, which indicates that electrical resistivity effectively depicted the properties of the disposal site. This study demonstrates that electrical resistivity survey is a suitable technique for investigation of animal carcass disposal sites.
Keywords
animal carcass disposal site; electrical resistivity survey; leachate; drilling investigation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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