Methods for sterilizing, degrading a pollutant and providing luminescence using a fenton reaction catalyst

Abstract

A method for sterilizing a solid substance including contacting a solid substance with a Fenton reaction catalyst, the Fenton reaction catalyst including a reaction product, wherein the reaction product includes divalent iron, wherein the reaction product is obtained by providing a feedstock for supplying a component having a reduction effect, the feedstock being selected from the group consisting of (i) coffee grounds after extraction of coffee and (ii) tea dregs, the feedstock being a dried product, and mixing the feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, the source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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 the feedstock.

1 . A method for sterilizing a solid substance comprising contacting a solid substance with a Fenton reaction catalyst, the Fenton reaction catalyst comprising a reaction product, wherein the reaction product comprises 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, and mixing said feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, said source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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. 
     
     
         2 . The method according to  claim 1 , wherein the contacting comprises spraying the Fenton reaction catalyst on the solid substance; applying the Fenton reaction catalyst on the solid substance; kneading the Fenton reaction catalyst with the solid substance; or immersing the solid substance into a solution containing the Fenton reaction catalyst. 
     
     
         3 . The method according to  claim 1 , wherein the solid substance comprises an organism which generates hydrogen peroxide. 
     
     
         4 . The method according to  claim 1 , further comprising preparing a solution containing the Fenton reaction catalyst and hydrogen peroxide, and then spraying the solution on the solid substance, applying the solution on the solid substance or kneading the solution with the solid substance. 
     
     
         5 . The method according to  claim 1 , wherein the solid substance is immersed in a solution, and wherein the solution further comprises hydrogen peroxide. 
     
     
         6 . A method for degrading a solid pollutant, comprising contacting a solid pollutant with a Fenton reaction catalyst, the Fenton reaction catalyst comprising a reaction product, wherein the reaction product comprises 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, and mixing said feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, said source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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. 
     
     
         7 . The method according to  claim 6 , wherein the contacting comprises spraying the Fenton reaction catalyst on the solid pollutant; applying the Fenton reaction catalyst on the solid pollutant; kneading the Fenton reaction catalyst with the solid pollutant; or immersing the solid pollutant into a solution containing the Fenton reaction catalyst. 
     
     
         8 . The method according to  claim 6 , wherein the solid pollutant comprises an organism which generates hydrogen peroxide. 
     
     
         9 . The method according to  claim 6 , further comprising preparing a solution containing the Fenton reaction catalyst and hydrogen peroxide, and then spraying the solution on the solid pollutant, applying the solution on the solid pollutant or kneading the solution with the solid pollutant. 
     
     
         10 . The method according to  claim 6 , wherein the solid pollutant is immersed in the solution, and wherein the solution further comprises hydrogen peroxide. 
     
     
         11 . A method for providing luminescence based on chemiluminescence comprising adding a Fenton reaction catalyst to a solution containing hydrogen peroxide and a luminescence substrate, the Fenton reaction catalyst comprising a reaction product, wherein the reaction product comprises 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, and mixing said feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, said source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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. 
     
     
         12 . A method for sterilizing a liquid with a Fenton reaction catalyst comprising adding the Fenton reaction catalyst to the liquid, mixing the Fenton reaction catalyst with the liquid, or immersing the Fenton reaction catalyst into the liquid, the Fenton reaction catalyst comprising a reaction product, wherein the reaction product comprises 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, and mixing said feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, said source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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. 
     
     
         13 . The method according to  claim 12 , wherein the liquid comprises an organism which generates hydrogen peroxide. 
     
     
         14 . The method according to  claim 12 , further comprising introducing hydrogen peroxide during the adding of the Fenton reaction catalyst to the liquid or during the mixing of the Fenton reaction catalyst with the liquid. 
     
     
         15 . A method for degrading a liquid pollutant with a Fenton reaction catalyst comprising adding the Fenton reaction catalyst to the liquid pollutant, mixing the Fenton reaction catalyst with the liquid pollutant, spraying the Fenton reaction catalyst on the liquid pollutant, or immersing the Fenton reaction catalyst into the liquid pollutant, the Fenton reaction catalyst comprising a reaction product, wherein the reaction product comprises 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, and mixing said feedstock with an iron ion-supplying source containing divalent or trivalent iron, and then adding water, said source being at least one substance selected from the group consisting of iron (II) chloride, iron (III) chloride, iron (II) nitrate, iron (III) nitrate, iron (II) sulfate, iron (III) sulfate, iron (II) hydroxide, iron (III) hydroxide, iron (III) oxide; a heme iron; a product obtained by dissolving iron ore, metallic iron or iron (III) oxide-rich red soil with an acid; and rust, and wherein in the mixing, the iron ion-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. 
     
     
         16 . The method according to  claim 15 , wherein the liquid pollutant comprises hydrogen peroxide. 
     
     
         17 . The method according to  claim 15 , further comprising introducing hydrogen peroxide during the adding, the mixing, the spraying or the immersing of the Fenton reaction catalyst. 
     
     
         18 . The method according to  claim 15 , wherein the Fenton reaction catalyst is in a solid form and the Fenton reaction catalyst is immersed into the liquid pollutant, and further comprising introducing hydrogen peroxide into the liquid pollutant containing the Fenton reaction catalyst.