| 摘要 |
PROBLEM TO BE SOLVED: To provide a treating method of laundry waste water capable of suppressing the generation of secondary waste, easily disposing the generated waste, performing the treatment with continuous stability and high safety and making a treating device compact. SOLUTION: In a treating method for evaporating and condensing a laundry waste water or the like generated from, for example, a nuclear facility or the like and discharging the resultant condensed water, a foaming factor is removed and a part of COD component is oxidized and decomposed by adding hydrogen peroxide solution or ozone as an oxidizing agent to untreated waste water and irradiating with UV in an UV oxidation reactor 2. Though a problem that waste water untreated with irradiation of ultraviolet ray is vigorously foamed by being sent to a evaporation concentration vessel 3 to be evaporated and concentrated and a part of the COD component and a radioactive nuclide are moved to the condensation liquid side to be released to the environment is conventionally generated, the waste water treated with ultraviolet oxidation is not foamed even at the time of being concentrated at least up to 500 times. |
