Reinvestigation on the Mechanism for Algae Inactivation by the Ultraviolet/Peracetic Acid Process: Role of Reactive Species and Performance in Natural Water

Environmental Science & Technology, Год журнала: 2023, Номер 57(45), С. 17629 - 17639

Опубликована: Окт. 31, 2023

This study provided an in-depth understanding of enhanced algae inactivation by combining ultraviolet and peracetic acid (UV/PAA) selecting Microcystis aeruginosa as the target species. The electron paramagnetic resonance (EPR) tests scavenging experiments direct evidence on formed reactive species (RSs) indicated dominant role RSs including singlet oxygen (1O2) hydroxyl (HO•) organic (RO•) radicals in inactivation. Based kinetic model determined steady-state concentration RSs, contribution was quantitatively assessed with second-order rate constants for HO•, RO•, 1O2 2.67 × 109, 3.44 1010, 1.72 109 M-1 s-1, respectively. Afterward, coexisting bi/carbonate, acting a shuttle, that promotes transformation from HO• to RO• evidenced account better performance UV/PAA system under natural water background. Subsequently, along evaluation preoxidation modify coagulation-sedimentation, possible application process removal advanced.

Язык: Английский

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Effects of biochar immobilization of Serratia sp. F4 OR414381 on bioremediation of petroleum contamination and bacterial community composition in loess soil

Journal of Hazardous Materials, Год журнала: 2024, Номер 470, С. 134137 - 134137

Опубликована: Март 28, 2024

Язык: Английский

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Kinetics and mechanism of sulfate radical-and hydroxyl radical-induced disinfection of bacteria and fungal spores by transition metal ions-activated peroxymonosulfate

Water Research, Год журнала: 2023, Номер 243, С. 120378 - 120378

Опубликована: Июль 17, 2023

Язык: Английский

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Peracetic acid-based electrochemical treatment of sulfamethoxazole and real antibiotic wastewater: Different role of anode and cathode

Journal of Hazardous Materials, Год журнала: 2023, Номер 463, С. 132819 - 132819

Опубликована: Окт. 20, 2023

Язык: Английский

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Ultrasound-assisted activation of PAW residual radicals in the concurrent elimination of ARB and ARGs: Process efficiency, mechanism and implication

Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148627 - 148627

Опубликована: Янв. 9, 2024

Язык: Английский

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The aggregation characteristics of Aspergillus spores under various conditions and the impact on LPUV inactivation: Comparisons with chlorine-based disinfection

Water Research, Год журнала: 2024, Номер 253, С. 121323 - 121323

Опубликована: Фев. 15, 2024

Язык: Английский

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Modeling and optimization of synergistic ozone-ultraviolet-chlorine process for reclaimed water disinfection: From laboratory tests to software simulation

Water Research, Год журнала: 2023, Номер 243, С. 120373 - 120373

Опубликована: Июль 16, 2023

Язык: Английский

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Crouching bacteria, hidden tetA genes in natural waters: Intracellular damage via double persulfate activation (UVA/Fe2+/PDS) effectively alleviates the spread of antibiotic resistance

Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 135854 - 135854

Опубликована: Сен. 23, 2024

Язык: Английский

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A Novel Perspective on Breakpoint Chlorination: The Optimal Practices for Inactivating Fungal Spores in Peak Chloramination

Опубликована: Янв. 1, 2025

Язык: Английский

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A novel perspective on breakpoint chlorination: the optimal practices for inactivating fungal spores in peak chloramination

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138156 - 138156

Опубликована: Апрель 1, 2025

Язык: Английский

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