Regenerable Biochar Catalyst from Biogas Residue for Peroxymonosulfate Activation in Bisphenol A-Containing Wastewater Treatment

Water, Год журнала: 2025, Номер 17(5), С. 744 - 744

Опубликована: Март 4, 2025

The biogas residue (BR) from the anaerobic digestion of sludge poses a threat to environment due presence toxic and hazardous substances. Furthermore, emerging contaminants, such as bisphenol A (BPA), are widespread in domestic industrial wastewater, requiring efficient sustainable treatment technologies. In this study, BR-based biochar was pyrolyzed urea-modified BR employed catalyst activate peroxymonosulfate (PMS) for BPA degradation. With at 750 °C catalyst, 20 mg/L completely removed. Free radical detection confirmed that hydroxyl (•OH) sulfate (•SO4−) generation decreased with increase reuse times. X-ray photoelectron spectra showed deactivation mainly resulted -COOH C-OH group loss, which acted active sites generating •OH •SO4−, HCl or NaOH regeneration catalysts could recover oxygen-containing functional groups, boosting removal 54.7% 91.5% 100%, respectively. Thermal only enlarge catalyst’s specific surface area (SSA) adsorption capacity, but might not restore free capability. This research offered theoretical basis utilization provided reference reusing wastewater treatment.

Язык: Английский

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Mechanistic insights into the influence of dissolved organic matter in stormwater runoff on the TOrCs degradation by PB-Fe@CN: Reaction kinetics and degradation pathways

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162591 - 162591

Опубликована: Апрель 1, 2025

Язык: Английский

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In situ preparation of Mn-enriched biochar for catalytic degradation of ciprofloxacin via H2O2 activation

Journal of Physics and Chemistry of Solids, Год журнала: 2025, Номер unknown, С. 112788 - 112788

Опубликована: Апрель 1, 2025

Язык: Английский

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Stimulating the catalytic activity of chars for norfloxacin removal through surface functionalization with nitrogen and manganese: The combined role of dopants

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 133161 - 133161

Опубликована: Апрель 1, 2025

Язык: Английский

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Iron-doped Carex meyeriana Kunth biochars activate peracetic acid for efficient degradation of acid orange 7 dye in water: Key role of non-radical pathways

Journal of Water Process Engineering, Год журнала: 2025, Номер 74, С. 107835 - 107835

Опубликована: Апрель 29, 2025

Язык: Английский

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A Critical Review on the Biochar-mediated Formation of Reactive Species: Detection Methods, Transformation Mechanisms and Environmental Implications

Bulletin of Environmental Contamination and Toxicology, Год журнала: 2025, Номер 114(5)

Опубликована: Апрель 29, 2025

Язык: Английский

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The effective polymeric macromolecule as peroxymonosulfate activator as an alternative to metal oxides in the treatment of organic dye pollutants

Materials Today Communications, Год журнала: 2024, Номер 39, С. 109144 - 109144

Опубликована: Май 10, 2024

Язык: Английский

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Synergistic degradation of p-nitrophenol using peroxymonosulfate activated with a bimetallic Mn3O4–Cu2O catalyst: Investigation of strong interactions between metal oxides

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 113958 - 113958

Опубликована: Авг. 26, 2024

Язык: Английский

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Bisphenol A in Water Systems: Risks to Polycystic Ovary Syndrome and Biochar‐Based Adsorption Remediation: A Review

Chemistry & Biodiversity, Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

Abstract Access to clean and safe water sadly remains an issue in the 21 st century. Water reservoirs, whether groundwater or surface water, are routinely contaminated by various harmful Emerging Contaminants (ECs). One of most prevalent pollutants among these is Bisphenol A, which classified as Endocrine Disrupting Compound (EDC). This substance adversely interferes with endocrine system, primarily mimicking estrogen, has been considered a potential contributor Polycystic Ovary Syndrome (PCOS) 82.70 % 1,391 women studied showing positive correlation between BPA exposure PCOS. PCOS currently disorder affecting reproductive age; however, its pathogenesis unclear, complicating diagnosis subsequently patient care. In this review, topics thoroughly examined, particular emphasis on biochar, new promising method for large‐scale purification. Biochar, derived from organic waste materials, emerged cost‐effective remarkable adsorption properties achieving up 88 efficiency over four cycles reuse, similar that activated carbon. review interrogates suitability biochar counteracting EDC pollutants.

Язык: Английский

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Cobalt-Doped Hydrochar Derived from Microalgae as an Efficient Peroxymonosulfate Activator for Paraben Degradation

Catalysts, Год журнала: 2024, Номер 14(10), С. 695 - 695

Опубликована: Окт. 6, 2024

Hydrochar, an attractive member of the carbonaceous materials, is derived from biomass and projects great potential in peroxymonosulfate (PMS) activation, but has not been studied much. Herein, by using large-scale cultured Chlorella vulgaris field-collected bloom algae, a series porous hydrochar was synthesized via facile hydrothermal carbonization reaction, while Co doping significantly increased their specific surface areas, degree, functional groups. These Co-doped (xCo-HC, x: amount precursor) could efficiently activate PMS, resulting nearly 100% removal five common paraben pollutants within 40 min. A dosage 0.2Co-HC 0.15 g/L, PMS concentration 0.6 unadjusted pH 6.4 were verified more appropriately for degradation. The coexistence Cl−, SO42−, humic acid inhibited degradation, HCO3− showed enhancing effect. No observable change found at presence NO3−. Quenching results illustrated that produced •SO4− during conversion doped Co3+/Co2+ acted as dominant active species •O2−, 1O2, •OH contributed relatively less. algae-based potentially facilitated electron transfer xCo-HC/PMS system. Overall, this study develops new strategy resource utilization abundant algae.

Язык: Английский

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