Heterogeneous activation of H2O2/Na2S2O8 with iron ore from water distribution networks for pollutant removal

In this study, we investigated using the main composition of pipe deposits from water distribution networks as catalyst to activate dual-oxidant H2O2/Na2S2O8 system to produce radicals for perchloroethylene and chloramphenicol removal. According to the results, the degradation efficiency of perchlor...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 85(2022), 6 vom: 30. März, Seite 1813-1823
1. Verfasser: Zhong, Dan (VerfasserIn)
Weitere Verfasser: He, Fu, Ma, Wencheng, Wu, Yichuan, Dong, Jiaju
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Environmental Pollutants Iron Compounds Hydrogen Peroxide BBX060AN9V Iron E1UOL152H7
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520 |a In this study, we investigated using the main composition of pipe deposits from water distribution networks as catalyst to activate dual-oxidant H2O2/Na2S2O8 system to produce radicals for perchloroethylene and chloramphenicol removal. According to the results, the degradation efficiency of perchloroethylene by H2O2/Na2S2O8 system was 92.05% within 8 h. Due to the slow conversion between ≡Fe3+ and ≡Fe2+, the hydroxylamine was introduced to reduce reaction time. As for the results, the degradation efficiency of chloramphenicol in the H2O2/Na2S2O8 system with hydroxylamine assistance was 73.31% within 100 min. Meanwhile, several key affecting factors and the kinetic models were investigated. The primary radicals were identified by electron paramagnetic resonance and radical scavenging tests. Eleven degradation products were confirmed by high-resolution liquid chromatography-mass spectrometry. The result of this study provided the theoretical basis for resource utilization of pipe deposits in water treatment in case of emerging contamination events 
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650 7 |a Iron Compounds  |2 NLM 
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700 1 |a He, Fu  |e verfasserin  |4 aut 
700 1 |a Ma, Wencheng  |e verfasserin  |4 aut 
700 1 |a Wu, Yichuan  |e verfasserin  |4 aut 
700 1 |a Dong, Jiaju  |e verfasserin  |4 aut 
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