Enhanced p-nitrophenol removal via electrochemical activation of peroxymonosulfate (PMS) with biochar in a flow-through reactor: Mechanistic insights and optimization

Journal of Water Process Engineering, Год журнала: 2025, Номер 71, С. 107276 - 107276

Опубликована: Фев. 17, 2025

Язык: Английский

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CaO2 activation by electrochemically generated Fe2+ for improving sludge dewatering at neutral pH: Influence of oxalic acid addition

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149322 - 149322

Опубликована: Фев. 5, 2024

Язык: Английский

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Tungsten disulfide particles driving ferric ions reduction for the enhancement of calcium peroxide fenton-like reaction

Separation and Purification Technology, Год журнала: 2023, Номер 330, С. 125381 - 125381

Опубликована: Окт. 14, 2023

Язык: Английский

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Chalcogen Elements in Regulating the Local Electron Density of Cu₂X for an Efficient Heterogeneous Fenton-like Process

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(8), С. 11324 - 11332

Опубликована: Фев. 15, 2023

In this work, a novel strategy for Fenton activity improvement of Cu2X was reported, in which the local electron density Cu sites regulated via manipulation simple chalcogen elements (O, S, and Se). Among them, Cu2Se catalysts show excellent catalytic to activate H2O2 complete removal ofloxacin (10 mg/L) at an initial pH 6.5 within 120 min. Radical scavenger experiments spin resonance spectroscopy confirm that •OH radicals are primary oxygen reactive species drive degradation. addition, functional theory calculations further proved electrons would migrate from X accumulate on active order Se > S O. Compared with Cu2O Cu2S, highly concentrated atoms not only decreased activation energy Fenton-like reaction but also boosted Cu2+/Cu+ cycle generation more (18-66 μm) maintenance high stability catalysts, leading application potential. We believe work will lay foundation designing practical applications since developing heterogeneous system highest oxidation efficiency has always been long-term goal field.

Язык: Английский

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Investigating the efficiency and mechanism of biochar in-situ reaction zones for groundwater remediation: A case study of 1,2-dichloroethane in gravel column

Journal of Environmental Management, Год журнала: 2025, Номер 380, С. 125019 - 125019

Опубликована: Март 18, 2025

Язык: Английский

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Biodegradation of 1,2-dichloroethane by Ancylobacter sp. BL1: Degradation characteristics, catabolic genes, and bioaugmentation in contaminated soil

International Biodeterioration & Biodegradation, Год журнала: 2025, Номер 203, С. 106123 - 106123

Опубликована: Май 12, 2025

Язык: Английский

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A review of Sustained release materials for remediation of organically contaminated groundwater：Material preparation, applications and prospects for practical application

Journal of Hazardous Materials Advances, Год журнала: 2023, Номер 13, С. 100393 - 100393

Опубликована: Ноя. 26, 2023

Substandard industrial production and accidental leaks can lead to serious groundwater contamination. In particular, organic pollutants produce continuous pollution in endanger human health. Sustained release materials (SRM) have a lower rate longer period prolong the process of chemical oxidation. At same time, they certain load capacity that is sufficient overcome lack oxygen carbon sources microbial low-temperature environments. SRM has proven be highly potential remediation material due its excellent physical properties. Its combination with traditional in-situ methods become preferred technology for more contaminated site cases. This article reviews types proportion recent years, explores feasibility as an oxidant oxidation stable source process, different forms laboratory situations. Kinetic parameters release. Of particular interest discussion available parametric data opportunities challenges large-scale applications from scale field test scale. good application prospects future there are potentially applicable technical improvements. For example, key issues need solved use stability adhesives active components under complex geological environmental conditions their fragile Utilize safely, taking into account related cost feasibility.

Язык: Английский

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Polydopamine coated polyvinyl alcohol sponges as floatable co-catalysts for boosting the CaO2/Fe3+ system in dye degradation

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2023, Номер 681, С. 132856 - 132856

Опубликована: Ноя. 23, 2023

Язык: Английский

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Cao2 Activation by Electrochemically Generated Fe2+ for Improving Sludge Dewatering at Neutral Ph: Influence of Oxalic Acid Addition

Опубликована: Янв. 1, 2023

An electrochemically (EF) coupled advanced oxidation process for enhancing sludge dewatering by introducing oxalic acid (OA) at neutral pH was proposed. The specific resistance and water content of under the optimal conditions (reaction time 40 minutes, current intensity 1.00A, OA dosage 0.18 g/g TSS, CaO2 0.14 value 7.78) were reduced 96.9% 30.1%, respectively. presence counteracted increase in solution caused electrochemistry dosing, allowing to remain a or acidic state almost all times. Therefore, EF-CaO2/OA system can effectively improve performance without changing raw sludge. In addition, had synergistic effect on assisting electrochemical reaction promote conversion Fe3+ into Fe2+ as well accelerating dissolution CaO2, which further ensured continuous generation ·OH. organic components treated extracellular polymers changed. particular, subtle changes secondary structure proteins change from hydrophilic hydrophobic gradually. decrease zeta potential particle size contact angle indicated significant improvement performance. persistence stability reactions during conditioning also suggested that may be an efficient feasible technology new combinations.

Язык: Английский

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Electrocatalytic reduction of gaseous dichloroethane using carbon organic frame immobilized graphene

Journal of Electroanalytical Chemistry, Год журнала: 2024, Номер 970, С. 118539 - 118539

Опубликована: Июль 29, 2024

Язык: Английский

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