| abstract |
The present invention relates to a method for treating waste water. More particularly, the method includes: a first step of producing a mixture by mixing 100 parts by weight of waste water, which has the concentration of 40-60 mg/L and contains organic materials with 0.3-0.5 parts by weight of a sodium persulfate solution with the concentration of 3-5 g/L; and a second step of oxidizing and decomposing the organic materials by irradiating the mixture with microwaves with output of 1400-1600 W at 85-100°C for 8-10 minutes. According to the present invention, oxidation and decomposition reaction is promoted by vibrating, translating, and rotating molecules with a heating effect by sulfate radicals and microwaves. Therefore, the organic materials, included in the waste water with a high concentration, can be oxidized and decomposed in a short time. |