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jgrg843-sup-0001-readme.txtplain text document1Kreadme.txt
jgrg843-sup-0002-fs01.jpgimage/pjpeg519KFigure S1. SEM images showing density of iron-(oxyhydr)oxide coating on silica sand (a) column 1, (b) column 2; and (c) goethite (Gt) needles on ferrihydrite (Fh) in column 1.
jgrg843-sup-0003-fs02.jpgimage/pjpeg257KFigure S2. Comparison of Ag/AgCl and Pb/PbCl2 electrode behaviour with temperature over a 2-week period in column 1.

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