Patent ID: 9566361
Date: 2017-02-14
CPC Classifications: A01N,A61L,A62D,B01J,B09C,C02F,C09K,Y02W

Claim:
1. A method for catalyzing a Fenton reaction, comprising adding hydrogen peroxide to a Fenton reaction catalyst, said Fenton reaction catalyst comprising a reaction product which comprises stable divalent iron, wherein the reaction product is obtained by providing a feedstock for supplying a component having a reduction effect, said feedstock being selected from the group consisting of (i) coffee grounds after extraction of coffee and (ii) tea dregs, said feedstock being a dried product, mixing said feedstock with an iron-supplying source containing divalent or trivalent iron, and then adding water, wherein the iron-supplying source is mixed so that elemental iron is contained in an amount of 0.1 to 10 parts by weight with respect to 100 parts by weight of the dried product of said feedstock.