A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Geophysical surveys for unlocking landfill resources : from past applications to future developments
The earliest recognition of the potential of geophysical methods for characterizing landfill sites dates from over half a century ago and since then numerous case studies have been presented. In the vast majority of studies in the literature, the interest in landfill investigation relates to the assessment of associated environmental pollution problems, primarily the contamination of groundwater by landfill leachate. The landfill geometry and internal structure are recurrent targets in geophysical surveys performed in direct support of planning site remediation projects. While remediation usually involves the excavation of the disposed wastes, in which part of the excavated materials can be recycled, only a few studies have made an explicit link to landfill mining. The recent introduction of the concept of dynamic landfill management – aiming to provide an integrated framework for landfill pollution prevention, and land remediation and reclamation, including enhanced landfill mining focusing on the recovery of resources in terms of materials and/or energy – provided a new incentive to advance the use of geophysical methods as economic tools for landfill characterization. Yet, setting the waste composition and the quality of waste materials for recovery as main targets adds some new challenges to the more conventional survey practice tailored to environmental risk assessment. The extreme complexity, variability and heterogeneity that waste deposits can show, raise the ambiguity of possible interpretations of geophysical data to the next level and, hence, careful preparation is required for any investments made in geophysical investigations not to go to waste. In this contribution, we present an overview of recent applications of geophysical methods to the study of landfills of different types of waste, ages, and construction settings. We identify critical factors to successful site exploration to support landfill “mining” and formulate recommendations for the improvement of geophysical survey design and ...
Geophysical surveys for unlocking landfill resources : from past applications to future developments
The earliest recognition of the potential of geophysical methods for characterizing landfill sites dates from over half a century ago and since then numerous case studies have been presented. In the vast majority of studies in the literature, the interest in landfill investigation relates to the assessment of associated environmental pollution problems, primarily the contamination of groundwater by landfill leachate. The landfill geometry and internal structure are recurrent targets in geophysical surveys performed in direct support of planning site remediation projects. While remediation usually involves the excavation of the disposed wastes, in which part of the excavated materials can be recycled, only a few studies have made an explicit link to landfill mining. The recent introduction of the concept of dynamic landfill management – aiming to provide an integrated framework for landfill pollution prevention, and land remediation and reclamation, including enhanced landfill mining focusing on the recovery of resources in terms of materials and/or energy – provided a new incentive to advance the use of geophysical methods as economic tools for landfill characterization. Yet, setting the waste composition and the quality of waste materials for recovery as main targets adds some new challenges to the more conventional survey practice tailored to environmental risk assessment. The extreme complexity, variability and heterogeneity that waste deposits can show, raise the ambiguity of possible interpretations of geophysical data to the next level and, hence, careful preparation is required for any investments made in geophysical investigations not to go to waste. In this contribution, we present an overview of recent applications of geophysical methods to the study of landfills of different types of waste, ages, and construction settings. We identify critical factors to successful site exploration to support landfill “mining” and formulate recommendations for the improvement of geophysical survey design and ...
Geophysical surveys for unlocking landfill resources : from past applications to future developments
Van De Vijver, Ellen (author) / Caterina, David (author) / Isunza Manrique, Itzel (author) / Bobe, Christin (author) / Nguyen, Frédéric (author)
2020-01-01
AGU Fall Meeting 2020, Abstracts
Conference paper
Electronic Resource
English
DDC:
690
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