초록 ▼

A composition having a depot effect and a method for treating polluted waters and water sediments such that constituents that are hazardous to water are essentially decomposed or bound. Microbiological decomposition processes are long-term supported and water quality is improved without adding salt

A composition having a depot effect and a method for treating polluted waters and water sediments such that constituents that are hazardous to water are essentially decomposed or bound. Microbiological decomposition processes are long-term supported and water quality is improved without adding salt or decreasing the pH value. The composition contains one or more compounds which are produced by converting iron(III) nitrade and/or aluminium nitrade and hydrogen peroxide in the presence of a base and release oxygen and/or nitrations as oxygen donors in a prolonged manner when contacting water.

대표청구항 ▼

1. Composition with a depot effect, wherein the composition comprises one or more compounds, which are produced by reacting Fe(III) nitrate and/or aluminum nitrate and hydrogen peroxide in the presence of a base and the composition releases oxygen and/or nitrate ions as oxygen donors upon contact wi

1. Composition with a depot effect, wherein the composition comprises one or more compounds, which are produced by reacting Fe(III) nitrate and/or aluminum nitrate and hydrogen peroxide in the presence of a base and the composition releases oxygen and/or nitrate ions as oxygen donors upon contact with water over a long period of time. 2. Composition of claim 1, wherein during the reaction between Fe(III) nitrate and/or aluminum nitrate and hydrogen peroxide, sulfate ions are also added at most 50 wt. % based on the nitrate used. 3. Composition of claim 1, wherein the hydroxides of monovalent, divalent and/or trivalent metals are used as the base. 4. Composition according to claim 1, wherein calcium hydroxide and/or magnesium hydroxide are used as the base. 5. Composition according to claim 1, wherein the reaction takes place at a pH value above 6. 6. Composition according to claim 1, wherein the reaction takes place in the presence of oxidation catalysts. 7. Composition of claim 1, wherein the reaction takes place in the presence of additives. 8. Composition according to claim 1, wherein the reaction takes place in the presence of carbonates and/or sulfates. 9. Method for treatment of polluted waters and water sediments, comprising reacting Fe(III) nitrate and/or aluminum nitrate and hydrogen peroxide in the presence of a base to obtain a suspension containing Fe(III)- and/or aluminum-containing compounds, and introducing the suspension into the water and/or the water sediments. 10. Method of claim 9, wherein during the reaction between Fe(III) nitrate and/or aluminum nitrate and hydrogen peroxide, sulfate ions are also added at most 50 wt % based on the nitrate used. 11. Method of claim 9, wherein the hydroxides of monovalent, divalent and/or trivalent metals are used as the base. 12. Method according to claim 9, wherein the reaction takes place at a pH value above 6. 13. Method according to claim 9, wherein the reaction takes place in the presence of oxidation catalysts. 14. Method of claim 9, wherein the reaction takes place in the presence of additives. 15. Method according to claim 9, wherein the reaction takes place in the presence of carbonates and/or sulfates. 16. Composition of claim 3, wherein the hydroxides of calcium, magnesium, sodium, and potassium are used as the base. 17. Composition according to claim 5, wherein the pH value is between 7 and 10. 18. Composition of claim 7, wherein the additives are materials that are known to restore waters. 19. Method of claim 11, wherein the hydroxides of calcium, magnesium, sodium, and potassium are used as the base. 20. Method of claim 12, wherein the pH value is between 7 and 10. 21. Method of claim 14, wherein the additives are materials that are known to restore water.