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This paper reports the use of unfunctionalized and phenylalanine functionalized clays as an alternative cost effective, environmental friendly and efficient sorbent for the removal of Mn and Fe from polluted drinking water sources in Lesotho. The Mn and Fe metals were adsorbed on two different clays (clay A—a black clay and clay B—a yellow clay) collected from Ha-Teko in Maseru (clay A) and Phoqoane...
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