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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 tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
2018 (Engelska)Självständigt arbete på avancerad nivå (masterexamen), 80 poäng / 120 hpStudentuppsats (Examensarbete)
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.

Ort, förlag, år, upplaga, sidor
2018. , s. 27
Nyckelord [en]
Groundwater Remediation, Competitive Sorption, SpinChem
Nationell ämneskategori
Geokemi
Identifikatorer
URN: urn:nbn:se:ltu:diva-69987OAI: oai:DiVA.org:ltu-69987DiVA, id: diva2:1228998
Externt samarbete
Geogen Produktion AB
Ämne / kurs
Examensarbete, minst 30 hp
Utbildningsprogram
Geovetenskap, master
Presentation
2018-06-01, D2223, Luleå Tekniska Universitet, Luleå, 13:00 (Engelska)
Examinatorer
Tillgänglig från: 2018-08-09 Skapad: 2018-06-29 Senast uppdaterad: 2018-09-04Bibliografiskt granskad

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fulltext(1560 kB)65 nedladdningar
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