Application of nanotechnology in removal of NAPLs from contaminated aquifers:: a source clean-up experimental study

Tannaz Pak; N. L Archilha; Raaid A-Imari

doi:10.1007/s10098-018-1487-5

Application of nanotechnology in removal of NAPLs from contaminated aquifers: a source clean-up experimental study

Tannaz Pak, N. L Archilha, Raaid A-Imari

SCEDT Engineering

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Abstract

This work investigates the removal of non-aqueous phase liquids (NAPLs) from groundwater resources using nanotechnology. We present results of a series of multiphase fluid displacement experiments conducted in a naturally occurring sandstone rock. These experiments involve injection of an aqueous suspension of silica nanoparticles to remove a trapped NAPL phase. Specifically, the effect of nanoparticle concentration on the efficiency of the NAPL removal is studied. Our results show that silica nanoparticles successfully remobilised the trapped NAPL phase and resulted in 13% increase in its removal efficiency. The optimal concentration for NAPL removal efficiency is found to be 0.3 wt%.

Original language	English
Pages (from-to)	427–433
Number of pages	7
Journal	Clean Technologies and Environmental Policy
Volume	20
Issue number	2
Early online date	13 Jan 2018
DOIs	https://doi.org/10.1007/s10098-018-1487-5
Publication status	Published - 1 Mar 2018

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http://hdl.handle.net/10149/621610
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abstract = "This work investigates the removal of non-aqueous phase liquids (NAPLs) from groundwater resources using nanotechnology. We present results of a series of multiphase fluid displacement experiments conducted in a naturally occurring sandstone rock. These experiments involve injection of an aqueous suspension of silica nanoparticles to remove a trapped NAPL phase. Specifically, the effect of nanoparticle concentration on the efficiency of the NAPL removal is studied. Our results show that silica nanoparticles successfully remobilised the trapped NAPL phase and resulted in 13% increase in its removal efficiency. The optimal concentration for NAPL removal efficiency is found to be 0.3 wt%.",

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AB - This work investigates the removal of non-aqueous phase liquids (NAPLs) from groundwater resources using nanotechnology. We present results of a series of multiphase fluid displacement experiments conducted in a naturally occurring sandstone rock. These experiments involve injection of an aqueous suspension of silica nanoparticles to remove a trapped NAPL phase. Specifically, the effect of nanoparticle concentration on the efficiency of the NAPL removal is studied. Our results show that silica nanoparticles successfully remobilised the trapped NAPL phase and resulted in 13% increase in its removal efficiency. The optimal concentration for NAPL removal efficiency is found to be 0.3 wt%.

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Application of nanotechnology in removal of NAPLs from contaminated aquifers: a source clean-up experimental study

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