Abstract
The radioactive organics in wastewater were removed by Fenton reagent. The optimum conditions determined by single-factor test and orthogonal experiment are as following: [H2O2] =1.0mol·L-1, [Fe2+] =6.00mmol·L-1 and 30min at pH=4.0. Under these conditions, the COD removal efficiency was 81%. The dosage of Fe2+ was the most influential factor on organic wastewater COD removal by Fenton and the following influential factors were the reaction time, H2O2 dosage and pH value. In the process of radioactive wastewater treatment by Fenton, the effect of molten iron complexes flocculation was bigger than hydroxyl radical oxidation on COD removal.
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