Characterization and recognition of three-dimensional excitation-emission matrix spectra of wastewater from six typical categories

Kuang, Litao; Liu, Rui; Jin, Meng; Lan, Yaqiong; Su, Yingying; Zhao, Yuan; Chen, Lujun

doi:10.1016/j.jes.2024.04.026

Journal of Environmental Sciences

2024

DOI: 10.1016/j.jes.2024.04.026

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Characterization and recognition of three-dimensional excitation-emission matrix spectra of wastewater from six typical categories

Litao Kuang,

Rui Liu,

Meng Jin

et al.

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Cited by 2 publications

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Improving groundwater vulnerability assessment using machine learning

Fu,

2024

Journal of Environmental Sciences

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Improving groundwater vulnerability assessment using machine learning

Fu,

2024

Journal of Environmental Sciences

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Regulating Hydroxyl Radicals (^•OH) and Hydrated Electron (e_aq) for Enhanced Radiolytic Degradation of 4-Nitrophenol by Addition of H₂O₂

Cheng,

Wang

2024

ACS EST Water

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Ionizing radiation (IR) technology can degrade toxic organic pollutants effectively through hydroxyl radicals ( • OH) and hydrated electron (e aq − ) generated in the water radiolysis process. However, the treatment cost might increase due to the mutual consumption of • OH and e aq − . In this study, hydrogen peroxide (H 2 O 2 ) was incorporated into the IR system to enhance its degradation efficacy to phenol compounds. The higher steady-state concentrations of • OH in the IR/H 2 O 2 system than that of the IR system showed that H 2 O 2 promoted the generation of • OH in the IR system. The contributions of • OH and e aq − in the degradation of 4-nitrophenol (4-NP) and phenol (PE) were evaluated, indicating that the reductive role of e aq − in the degradation process should not be overlooked. Further, the quantitative analysis of the oxidative and reductive intermediates in the 4-NP degradation process showed that H 2 O 2 addition hindered the reductive degradation of 4-NP by e aq − , favoring oxidation by • OH. Finally, the practicality and efficiency of the IR technology for actual coking wastewater treatment was assessed. KEYWORDS: ionizing radiation, hydrogen peroxide (H 2 O 2 ), hydroxyl radicals ( • OH), hydrated electron (e aq − ), coking wastewater

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Characterization and recognition of three-dimensional excitation-emission matrix spectra of wastewater from six typical categories

Cited by 2 publications

References 58 publications

Improving groundwater vulnerability assessment using machine learning

Improving groundwater vulnerability assessment using machine learning

Regulating Hydroxyl Radicals (^•OH) and Hydrated Electron (e_aq) for Enhanced Radiolytic Degradation of 4-Nitrophenol by Addition of H₂O₂

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Characterization and recognition of three-dimensional excitation-emission matrix spectra of wastewater from six typical categories

Cited by 2 publications

References 58 publications

Improving groundwater vulnerability assessment using machine learning

Improving groundwater vulnerability assessment using machine learning

Regulating Hydroxyl Radicals (•OH) and Hydrated Electron (eaq) for Enhanced Radiolytic Degradation of 4-Nitrophenol by Addition of H2O2

Contact Info

Product

Resources

About

Regulating Hydroxyl Radicals (^•OH) and Hydrated Electron (e_aq) for Enhanced Radiolytic Degradation of 4-Nitrophenol by Addition of H₂O₂