| abstract |
An object of the present invention is to provide a method for treating wastewater containing organic matter by Fenton treatment, in which the required amount of iron compounds is reduced, thereby reducing the amount of sludge generated, and at the same time, increasing the reaction contribution rate of hydrogen peroxide to significantly reduce the organic matter removal rate. Improve. An organic acid having a Fe 3+ → Fe 2+ reducing action is present in a Fenton reaction system. By reducing Fe 3+ to Fe 2+ in the system with an organic acid having a Fe 3+ → Fe 2+ reducing action, the required amount of iron compound can be reduced and the reaction contribution rate of H 2 O 2 can be increased. |