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Remediation of Contaminated Groundwater Using a SpinChem® Rotating Bed Reactor: Competitive Sorption of Metal(loid)s in Complex Solutions under Varying Geochemical Conditions
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
Abstract [en]

The potential of utilizing a new form of chemical processing technology called SpinChem® Rotating Bed Reactor (RBR), in combination with different reactive materials, for the purpose of remediating multi-contaminated aquifers under changing environmental conditions, was investigated using laboratory studies and geochemical models. Four different reactive materials, or combinations thereof, were tested: heat-treated peat powder combined with zero-valent iron (ZVI); IronPeat, which consists of peat powder coated with a ferriferous hydrosol (FFH); and a powdered steel waste product. Results showed that the powdered steel waste was compatible with the technology while the peat-based sorbents were not. However, there were no indications that the kinetics of the sorption reactions increased. This was attributed to the fact that the rate-limiting steps, for the binding of the studied metal(loid)s onto iron oxide, are generally considered to be dependent on the later stages of the sorption process related to diffusion mechanisms and not to the rate of mass transfer through the bulk liquid phase, which is what primarily is increased through application of the SpinChem® RBR technology.

Place, publisher, year, edition, pages
2018. , p. 27
Keywords [en]
Groundwater Remediation, Competitive Sorption, SpinChem
National Category
Geochemistry
Identifiers
URN: urn:nbn:se:ltu:diva-69987OAI: oai:DiVA.org:ltu-69987DiVA, id: diva2:1228998
External cooperation
Geogen Produktion AB
Subject / course
Student thesis, at least 30 credits
Educational program
Geosciences, master's level (120 credits)
Presentation
2018-06-01, D2223, Luleå Tekniska Universitet, Luleå, 13:00 (English)
Examiners
Available from: 2018-08-09 Created: 2018-06-29 Last updated: 2018-08-09Bibliographically approved

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MSc Thesis PA Final(1560 kB)15 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
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