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- W2080591230 endingPage "274" @default.
- W2080591230 startingPage "265" @default.
- W2080591230 abstract "Packed beds of metallic iron (Fe0) and sand are tested for their efficiency at discoloring an aqueous methylene blue (MB) solution (2.0 mg L−1) in gravity driven systems for up to 95 days. The aim was to determine the optimal Fe0/sand ratio for sustainable filters. Six different Fe0/sand volumetric ratios were explored: 0/100, 20/80, 30/70, 40/60, 60/40 and 100/0. The columns were characterized by (i) the time-dependant extent of MB discoloration and (ii) the evolution of the hydraulic conductivity (permeability). Results clearly showed increased permeability loss with increasing Fe0 ratio. The Fe0/sand ratio dependent extent of MB discoloration was not monotone. These observations corroborated the working hypothesis that properly designing a Fe0/sand filter is finding a compromise between: (i) increased sustainability by lowering Fe0 ratios and (ii) decreased efficiency by lowering Fe0 ratios. This work provided the first experimental evidence for an optimal Fe0/sand volumetric ratio of 25/75. This result will accelerate efforts for nonsite-specific system design." @default.
- W2080591230 created "2016-06-24" @default.
- W2080591230 creator A5023710142 @default.
- W2080591230 creator A5049094182 @default.
- W2080591230 creator A5056280671 @default.
- W2080591230 creator A5069325712 @default.
- W2080591230 creator A5070503267 @default.
- W2080591230 date "2014-07-01" @default.
- W2080591230 modified "2023-10-16" @default.
- W2080591230 title "Determining the optimum Fe0 ratio for sustainable granular Fe0/sand water filters" @default.
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- W2080591230 doi "https://doi.org/10.1016/j.cej.2014.03.008" @default.
- W2080591230 hasPublicationYear "2014" @default.