Characterization and adsorption of potassium permanganate modified active carbon filter media for formaldehyde removal in the building environment

摘要

This study examined the effect of potassium permanganate (KMnO4) modified activatedcarbon for formaldehyde removal. The physical properties is followed by morphology with SEMand specific surface area; EDS to calculate the each components of their energy bands to know howthe ratio is it. Moreover, the higher the initial formaldehyde concentration is, the shorter thesaturated absorption time when the face velocity is the same. The saturated absorption timeincreases with the face velocity decrease under the same initial formaldehyde concentration. Whenthe initial formaldehyde concentration and the face velocity are low, adsorption capacity is high.The lower face velocity and initial formaldehyde concentration are, the longer the adsorptionsaturation time is.