鉄(VI)酸カリウムによる下水およびフルボ酸の酸化

概要

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Ferrate is a powerful oxidizing agent promising in sanitary use, but there are very few investigations about its mode of action on complex organic matters in waste waters. In the present study, change in values of TOC and COD_<Mn> of soluble and insoluble fractions of waste waters, and change in UV-absorption profile of fluvic acid extracted from sewage sludge after treatment with potassium ferrate were investigated, and the following results were obtaind : 1) Increase in TOC value of filtrate and decrease in COD_<Mn> of waste waters were noted after treatment with ferrate, probably because of solubilization of particulate organic substances and partial oxidation of them by ferrate. 2) Decrease in UV-absorption of fluvic acid after treatment with ferrate was dependet on its molecular weight, and especially marked in fractions of molecular weight 100 to 1000
山梨大学の論文