TREATMENT METHOD OF MADE LAND LEACHATE BY USING ULTRAVIOLET IRRADIATION AND DISSOLVED OXYGEN CONTROL

摘要

PURPOSE: A process for treating seepage water of filled-up-land by irradiating ultraviolet periodically is provided which has an effect on reducing energy required for treatment of seepage and promoting reaction efficiency. CONSTITUTION: In the treatment method of made land leachate with a Fenton oxidation process, a dissolved oxygen is measured by a dissolved oxygen measuring instrument(4) in a photoreactor(1), the operation of an ultraviolet light source(3) and a flow regulator(6) of hydrogen peroxide are controlled by a controller(5) according to the amount of measured dissolved oxygen to irradiate ultraviolet light and provide adequate hydrogen peroxide. The photoreactor(1) comprises the controller(5) for controlling the flow regulator(6), the ultraviolet light source(3) for supplying ultraviolet by connecting to a connector(9) to reduce the light loss, an optical fiber(2) for irradiating ultraviolet light, the dissolved oxygen measuring instrument(4), a hydrogen peroxide storing tank(7) for supplying hydrogen peroxide through the flow regulator(6), and a mixer(8).