Reactive and Hydraulic Behavior of Permeable Reactive Barriers Constituted by Fe0 and Granular Mixtures of Fe0/Pumice. (2016)

• Record Type: Journal Article
• Authors: Bilardi, Stefania; Ielo, Domenico; Moraci, Nicola; Calabrò, Paolo S.
• Is Part Of: Procedia engineering. Volume 158(2016)
• Page Start: 446
• Page End: 451
• Publication Date: 2016
• Subjects: Column tests -- nickel -- hydraulic conductivity -- statistical model; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.08.470
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: The objective of the present work is to analyze, by means of column tests, the reactivity and hydraulic long term behavior of the zero valent iron (Fe 0 ) and of a granular mixture Fe 0 /pumice, for the remediation, through the Permeable Reactive Barriers technology, of nickel contaminated groundwater. The reactive behavior was studied by analyzing nickel concentration data, through a first order kinetic model in order to determine the thickness of a hypothetical PRB and its variation over time. The hydraulic conductivity behavior was studied through a numerical-statistical geometrical model developed by the authors. Expansive iron corrosion, precipitation of reaction products and gas formation are the processes considered.