solid media, namely natural or manufactured zeolites that have been specially coated with manganese-substitute nanophase ferric oxides, which remove arsenic from contaminated waters either through a sorption process or by reductive dissolution

'arsenic':22 'coat':12 'contamin':24 'dissolut':34 'either':26 'ferric':18 'manganes':15 'manganese-substitut':14 'manufactur':6 'media':2 'name':3 'nanophas':17 'natur':4 'oxid':19 'process':30 'reduct':33 'remov':21 'solid':1 'sorption':29 'special':11 'substitut':16 'water':25 'zeolit':7

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