An innovative approach to iron and manganese removal from groundwater using magnesium metal
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Date
1997
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Publisher
University of New Brunswick
Abstract
Problems with excess iron and manganese are commonly experienced by users of
groundwater throughout the world. This report investigates the feasibility of an innovative
iron and manganese treatment process using magnesium metal.
The study includes laboratory batch and column tests. Batch tests were performed
to study the parameters which may affect removal efficiencies. Column tests were carried out
using magnesium with different particle size, with or without catalysts, as packing materials.
Hydraulic parameters such as detention times and pressure losses through the column were
also investigated.
From these laboratory tests it was proven that magnesium metal can be used to
remove iron and manganese and other heavy metals. The removal efficiencies can be
significantly improved if Mn02 or copper wire is used as a catalyst or an electron transfer
agent together with magnesium respectively.
Based on the experimental results, a prototype column was designed that is capable
of treating enough water for a typical household for one year.