Fenton catalytic oxidation-MBBR treatment of hydrogen peroxide production wastewater
Hydrogen peroxide wastewater has the characteristics of high CODcr,low B/C and poor biodegradability.The wastewater was treated by Fenton catalytic oxidation-MBBR combined process.The results showed that when H2O2 dosage was 4 mL/L and H2O2/Fe2+molar ratio was 2,the Fenton catalytic oxidation-MBBR combined process had a good COD removal effect on hydrogen peroxide wastewater.After the wastewater was pretreated by Fenton catalytic oxidation,the B/C ratio of the wastewater increased from 0.11 to 0.47.The CODcr removal rate reached 77.7％and the CODcr concentration out of biological treatment unit subjected to continuous feed was less than 500 mg/L.
Fenton catalytic oxidationmoving bed biofilm reactorhydrogen peroxideBODCOD
万方数据
维普
