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A new approach to soil remediation: coupling nanotechnology with electrically induced particle transport (Electrokinetics)
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Orientador(es)
Resumo(s)
Traditional remediation technologies for Persistent Organic Pollutants (POP) such as
Polychlorinated Biphenyls (PCBs) have serious limitations and high costs. Zero valent
iron nanoparticles (nZVI) represent a new generation of environmental remediation
technologies that could provide cost-effective solutions. However, the limited transport of
nZVI through soils has been identified to be a major drawback for in situ applications. The
main research objective of this study is to find out if coupling electrokinetics and reactive
iron nanoparticles can be an effective method for treating PCBs contaminated soils,
through electrically induced nanoparticle transport. To understand the fundamental
aspects of the coupled technology the authors suggest dividing the overall problem into
three submodels (transport of nanoparticles by electroosmosis and by electrophoresis
and degradation of PCB) which are then integrated into a macroscale
transport/degradation numerical model. This paper presents the experimental approach
suggested for each submodel under study. Testing this innovative solution using the
suggested approach will allow for a deeper understanding of both the electrokinetically
enhanced transport of nZVI and PCBs dechlorination.
Descrição
Palavras-chave
Electrokinetic remediation Zero Valent Iron nanoparticles (nZVI) Coupled technologies Persistent organic pollutants
Contexto Educativo
Citação
Editora
CVR – Centro para a Valorização de Resíduos