Document Details
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Document Type |
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Article In Journal |
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Document Title |
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New Approach for Groundwater Detection Monitoring at Lined Landfills مدخل جديد لرصد نوعية المياه الجوفية عند أماكن دفن الملوثات |
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Document Language |
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English |
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Abstract |
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NEW APPROACH FOR GROUNDWATER DETECTION MONITORING AT LINED LANDFILLS
N. Buket YENiGüL1,a, Amro M.M. ELFEKI 2,c and Cees van den AKKER 1,b
ABSTRACT
The design of a groundwater detection monitoring system at a lined landfill is complicated due to uncertainties in contaminant source characteristics and variability of hydrogeological conditions. Maximizing the likelihood of detecting contaminants, while minimizing the contaminated area are the conflicting design objectives. Mostly, a large number of wells may be required to achieve the desired efficiency. However the cost might be quite high from practical point of view. Moreover, with the conventional monitoring approach a widely applied 3-well monitoring system (minimum regulatory requirement) is more often inadequate to accomplish these objectives at lined landfills due to the limited capture zone of monitoring wells. Therefore implementation of a new monitoring approach has been proposed in this study to design a highly efficient cost-effective 3-well system. In this new approach the main idea is to increase the interception of contaminant plumes at early stages by broadening the capture zone of monitoring well(s) simply by continuous pumping from the monitoring well(s) with a small pumping rate. A hypothetical problem is presented where Monte Carlo framework is used to incorporate uncertainties due to subsurface heterogeneity and the leak location. A finite difference groundwater model coupled with a random walk particle-tracking model simulates a contaminant plume released from the landfill for each Monte Carlo realization. The efficiency and the cost of the 3-well monitoring network have been compared for conventional and proposed monitoring approaches. It has been observed that the efficiency of the monitoring system improves significantly by the application of the proposed monitoring approach.
1 Faculty of Civil Engineering and Geosciences, Water Resources Section, TU Delft, P.O. Box 5048, 2600 GA Delft, The Netherlands. Fax:+31-15-2785915
a Corresponding author. e- mail address: n.b.yenigul@citg.tudelft.nl
b e- mail address: j.m.dejong@citg.tudelft.nl
2Department of Hydrology and Water Resources Management, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Kingdom of Saudi Arabia.
e-mail address: aelfeki@kaau.edu.sa
c On leave from Irrigation and Hydraulics Dept., Faculty of Engneering, Mansoura University, Mansoura, Egypt. |
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ISSN |
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21199 |
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Journal Name |
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Journal of Groundwater Monitoring and Remediation |
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Volume |
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26 |
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Issue Number |
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2 |
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Publishing Year |
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1427 AH
2006 AD |
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Article Type |
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Article |
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Added Date |
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Wednesday, March 7, 2012 |
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Researchers
| عمرو محمد الفقي | Elfeki, Amro Mohamed | Investigator | Doctorate | aelfeki@kau.edu.sa |
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