Journal ArticleDOI
Carbonate minerals in porous media decrease mobility of polyacrylic acid modified zero-valent iron nanoparticles used for groundwater remediation.
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TLDR
Assessment of the influence of the carbonate minerals in porous media on the transport of polyacrylic acid modified nZVI (PAA-nZVI) showed that the attachment efficiency and deposition rate coefficient increased linearly with increasing proportion of carbonate sand.About:
This article is published in Environmental Pollution.The article was published on 2013-08-01. It has received 77 citations till now. The article focuses on the topics: Carbonate minerals & Carbonate.read more
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Nanoscale zerovalent iron particles for groundwater remediation: a review
TL;DR: In this paper, a review on the current knowledge on the properties, reactivity and mobility in porous media of nZVI and their application to groundwater remediation is presented, where a specific focus is devoted to the methodologies to the colloidal stability of the NZVI slurries and to the available numerical tools for the simulation of laboratory and field scale mobility of the particles when injected in a porous media.
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Supported and unsupported nanomaterials for water and soil remediation: are they a useful solution for worldwide pollution?
TL;DR: This review analyzed relevant literature from 2011 to 2013, dealing with water and soil remediation by nanomaterials (NMs), either unsupported or supported upon inorganic adsorbents, and found lack of information about NMs regeneration and reusability, their large-scale application, and their efficiency in actual industrial wastewaters and contaminated soils.
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Enhanced removal of Cr(VI) by silicon rich biochar-supported nanoscale zero-valent iron.
Linbo Qian,Xiao Shang,Bo Zhang,Wenying Zhang,Anqi Su,Yun Chen,Da Ouyang,Lu Han,Jingchun Yan,Mengfang Chen +9 more
TL;DR: It was revealed that RS700-supported nZVI supported by silicate particles of biochar and the promotion of iron oxidation by SiO2 both contribute to the enhanced Cr(VI) removal and can be used as a potential remediation reagent to treat Cr( VI)-contaminated groundwater.
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Stability and transport of graphene oxide nanoparticles in groundwater and surface water
TL;DR: This study confirms that planar "carbonaceous-oxide" materials follow traditional theory for stability and transport, both due to their response to ionic strength, valence, and NOM presence and is the first to look at GONP transport across a wide range of representative conditions found in surface and groundwater environments.
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Continuum-based models and concepts for the transport of nanoparticles in saturated porous media: A state-of-the-science review.
TL;DR: The use of simplifying assumptions, such as the equilibrium assumption, in modeling the attachment/detachment mechanisms within a continuum modelling framework are investigated and it is found that its use as a description of dynamic deposition behavior in a continuum model yields broadly similar results to those arising from a kinetic model.
References
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Journal ArticleDOI
Nanoscale Iron Particles for Environmental Remediation: An Overview
TL;DR: Nanoscale iron particles represent a new generation of environmental remediation technologies that could provide cost-effective solutions to some of the most challenging environmental cleanup problems as mentioned in this paper, and they provide enormous flexibility for in situ applications.
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Water and waste water filtration. Concepts and applications
TL;DR: In this article, a conceptual model for water and waste water filtration processes is presented and compared with the results of laboratory experiments, and applications of particle destabilization and particle transport are presented.
Book
Particle Deposition and Aggregation: Measurement, Modelling and Simulation
TL;DR: In this article, a unified approach to the measurement, modelling and simulation of these processes is presented, bringing together the disciplines of colloid and surface chemistry, hydrodynamics, and experimental and computational methods.
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Correlation equation for predicting single-collector efficiency in physicochemical filtration in saturated porous media.
TL;DR: The resulting equation overcomes the limitations of current approaches and shows remarkable agreement with exact theoretical predictions of the single-collector efficiency over a wide range of conditions commonly encountered in natural and engineered aquatic systems.
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Aggregation and deposition of engineered nanomaterials in aquatic environments: role of physicochemical interactions.
TL;DR: In this review, colloidal forces governing nanoparticle deposition and aggregation are outlined, and essential equations used to assess particle-particle and particle-surface interactions, along with Hamaker constants for specific nanoparticles and the attributes exclusive to nanoscale particle interactions, are described.