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The effects of adsorbent dosage toward manganese removal using (a) Polyvinyl alcohol/chitosan (PVA/CS), (b) Banana peels activated carbon (BPAC), and (c) Untreated banana peels (UTBP) adsorbents (Abdeen et al., 2015; Ali and Saeed, 2015; Mahmoud, 2014).
