Lei Zhang, Pu Liu, Lina Wang, Nan Zhang, Aimin Duan, Xia Liu
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引用次数: 1
Abstract
A three-dimensional electrode reactor combined with Fenton's reagent was used for advanced treatment of coking wastewater from secondary biological treatment. Effects of some key factors on TOC removal rate were investigated and kinetics of coking wastewater was also studied under certain the operating parameters of the three-dimensional electrode reactor. The orthogonal test results showed that the optimal operating conditions were as follows: H2O2 dosage 300mg/L, initial pH 3.4, reaction time 90min and FeSO4·7H2O dosage 3.5mmol/L. TOC removal rate could reach 61.7% under the optimal conditions. It was found that coking wastewater degradation followed a pseudo-first-order reaction kinetic model. Coking wastewater were well degraded by this system, which provided a theoretical guidance for advanced treatment of coking wastewater by three-dimensional electrode reactor coupling Fenton's reagent process in engineering application.
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