Unveiling the optical and molecular characteristics of aging microplastics derived dissolved organic matter transformed by UV/chlor(am)ine oxidation and its potential for disinfection byproducts formation

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136440 - 136440

Published: Nov. 8, 2024

Language: Английский

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H2 production from coal by enriching sugar fermentation and alkane oxidation with hyperthermophilic resistance microbes in municipal wastewater

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151487 - 151487

Published: April 21, 2024

Language: Английский

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The Role of Natural Organic Matter in the Degradation of Phenolic Pollutants by Sulfate Radical Oxidation: Radical Scavenging vs Reduction

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Dissolved natural organic matter (NOM) significantly influences the performance of water treatment processes. It is generally recognized that NOM acts as a radical scavenger, thus inhibiting degradation pollutants in advanced oxidation processes (AOPs). This study examined impacts 8 different isolates on 4-chlorophenol (CP), representative phenolic pollutant, sulfate (SO4•-)-based AOPs. We developed an improved probe method to measure steady-state concentration SO4•- ([SO4•-]ss) both absence and presence NOM. Results show adding 1.00 mgC L-1 resulted only 1.3-3.4% decrease [SO4•-]ss. However, apparent rate constants CP decreased by 76-88%. discrepancy indicates scavenging cannot be primary mechanism for observed inhibition. proposed primarily reducing agent, reacting with phenoxy intermediates generated from single-electron SO4•-. Based this hypothesis, we validated kinetic model using experimental data. The reductive capacity NOM, determined model, correlates positively its electron-donating capacity. These findings enhance understanding NOM's role SO4•--based AOPs provide foundation developing strategies mitigate adverse effects.

Language: Английский

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Activated Carbon Promotes the Formation of Bromated Byproducts during Chlorination with the Presence of Bromide

ACS ES&T Water, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Language: Английский

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Aging of polystyrene microplastics by UV/Sodium percarbonate oxidation: Organic release, mechanism, and disinfection by-product formation

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 464, P. 132934 - 132934

Published: Nov. 8, 2023

Language: Английский

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The formation and control of disinfection by-products by two-step chlorination for sewage effluent: Role of organic chloramine decomposition among molecular weight fractions

Water Research, Journal Year: 2024, Volume and Issue: 253, P. 121302 - 121302

Published: Feb. 10, 2024

Language: Английский

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Characterization of halogenated organic compounds by the Fourier transform ion cyclotron resonance mass spectrometry: A critical review

Water Research, Journal Year: 2023, Volume and Issue: 246, P. 120694 - 120694

Published: Oct. 4, 2023

Language: Английский

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Superior performance of catalytic ozonation on molecular-level transformation of effluent organic matter and self-cleaning property in catalytic ozonation membrane reactor

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 338, P. 123076 - 123076

Published: July 7, 2023

Language: Английский

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Deep insight into the effect of bicarbonate on pollutant abatement in the UV/chlorine process

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148624 - 148624

Published: Jan. 7, 2024

Language: Английский

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Effects of Fe(III) on the formation and toxicity alteration of halonitromethanes, dichloroacetonitrile, and dichloroacetamide from polyethyleneimine during UV/chlorine disinfection

Water Research, Journal Year: 2024, Volume and Issue: 259, P. 121844 - 121844

Published: May 28, 2024

Language: Английский

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