Preparation and Characterization of Polymeric Beads and Membranes for Boron Removal From Water

Fabbri, Alessandro (2020) Preparation and Characterization of Polymeric Beads and Membranes for Boron Removal From Water. [Laurea magistrale], Università di Bologna, Corso di Studio in Chimica industriale [LM-DM270]
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Boron is an element essential for various biological processes, nevertheless at high concentration it can cause health issues in both plants and animals, thus making boron a pollutant element. Low cost and effective polymeric adsorbents capable of removing boron in aqueous solution at neutral pH were prepared for this purpose. The adsorbent selectivity towards boron was conferred taking advantage of the interaction between boric acid and the alcoholic groups of N-methyl-D-Glucamine, which are able to form specific complexes. Two different kinds of devices were produced and tested: cross-linked chitosan hydrogel beads (CCBMG) and PVA/chitosan membranes, the latter taking advantage of scCO2-assisted phase inversion technique. The capability of the adsorbents to be regenerated and to allow recovery of boric acid from a solution emulating the concentration of boric acid in seawater were evaluated.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Fabbri, Alessandro
Relatore della tesi
Correlatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
polymeric beads polymeric membranes chitosan PVA,N-Methyl-D-glucamin boron removal scCO2-assisted phase inversion
Data di discussione della Tesi
26 Marzo 2020

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