UV/Fenton Reagent Procearing Ganophosphorus Agrlecultral Chemicals Wastewater Experlm Ental Study

The ganophosphorus agricultural chemica ls waste water COD value is high, the toxicitybig, ma y the biochemistry difference, the component be complex, before the emissions, mustcarry on effective processing. At present, processor phosphorus agricultural chemica ls wastewater method ma inly since birth pretreatment methods and so on reduction and adsorption,hydrolisis, coagulation precipitation, conventiona l chemistry oxo-process, supercritica l wateroxidation, electrochemistry oxidation, photochemica l catalysis degeneration law equaliza tionresearch method, processing methods and so on physica l law and ultrasonic wave law. TheFenton law is one high-level chemistry oxo-process, in difficult to degrade the organic mattercommonly used processing, with remo ves in the waste water COD, the chromaticity and thefroth and so on. The Fenton oxo-process has the reaction rate to be quick, the degenerationefficiency is high, use scope broad and so on merits.This article take the Luoya ng some insecticide factory's workshop waste water as theobject of study, through Fenton reagent processing ganophosphorus agricultural chemica lswaste water each kind of influencing factor research discovery, solution pH value,FeSO4?7H2O throws the increment, H2O2 to throw the increment and to throw the Canada sidetype, the reaction time is affects the reagent oxidizing reaction the factor.By studying the UV / Fenton reagent organophosphorus pesticides found in the system,the introduction of UV light can improve the wastewa ter COD remova l efficiency, accelera tethe reaction rate, shorten the reaction time, and the dosage of H2O2 in the Fenton oxidationreaction tha n simply less 30%; when the UV light intensity 1600μw/cm3 above, CODremova l rate increased significa ntly after the light 120min, COD remova l efficiency of moretha n 95%, and low light (0μw/cm3) compared to, COD remova l rate 3 times; study also foundthat organophosphorus pesticides on the selective absorption of ultraviolet light, but choose the ma ximum UV absorption wavelength is not obvious, the wavelength range 240 ~ 300nm inthe UV to the organic phosphorus pesticide wastewa ter COD remova l rates have increased.Through has the hydroxyl free radica l dynamics research to the Fenton system todiscover: In Fenton system H2O2 density, FeSO4 density, pH value to hydroxyl free radica lThe·OH production has affects greatly.