Abstract

ABSTRACTThe degradation of polyacrylamide (PAM) in simulate wastewater was studied in UV/Fenton/C4H4O62− system. The factors such as molecular ratio of H2O2/Fe2+/C4H4O62−, pH, and the dosage of Fenton reagent that could affect the PAM degradation in the UV/Fenton/C4H4O62− system were investigated. The experimental results showed that adding C4H4O62− to UV/Fenton system could form photosensitive ferrous complexes, which led to higher degradation efficiency of PAM. The degradation rate of PAM could be up to 95.2% under the following conditions: the concentration of H2O2, Fe2+, and C4H4O62− were 22.5, 2.25, and 2.25 mmol/L, respectively (i.e., molecular ratio of H2O2/Fe2+/C4H4O62− was 10:1:1), the pH value was 3.0.

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