Evaluation of Nanomagnetite–Biochar Composite for BTA Removal

Nanomaterials, Год журнала: 2025, Номер 15(2), С. 115 - 115

Опубликована: Янв. 14, 2025

In this study, the removal of benzotriazole (BTA), a pervasive aquatic contaminant widely used for its anti-corrosion, UV-stabilizing, and antioxidant properties, by nanomagnetite, biochar, nanomagnetite–biochar composite is investigated. Nanomagnetite were synthesized under anoxic conditions tested BTA efficiency at neutral pH both oxic different time scales. Within short scale (up to 8 h), was shown be due deprotonation nanomagnetite surface. Through proton liberation, Fe²⁺ released in accordance with reaction Fe₃O₄ + 2H⁺ → Fe₂O₃ H₂O, which likely influences complexation possible redox degradation. On longer scale, biochar achieved higher efficiency: 50% removed within 48 h, formation ternary complex surface Ca2+ ions, or 75% after HCl acid wash followed saturation. As presents significant environmental risks extensive industrial applications, present study offers critical insights into mechanisms composite, highlights potential such materials water treatment applications.

Язык: Английский

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An Overview of Metal(oid) Pollution, Sources, and Probabilistic Health Risk Evaluations Based on a Monte Carlo Simulation of Surface River Water in a Developing Country

Water, Год журнала: 2025, Номер 17(5), С. 630 - 630

Опубликована: Фев. 21, 2025

Water pollution is a significant problem stemming from several causes, with the contamination of heavy metal(oid)s being primary concern. This especially concerning because poisonous characteristics these and their effects on aquatic ecosystem. research distinguished by its unique methodology for assessing in surface water Bangladeshi rivers over period sixteen years, 2007 to 2022. work seeks elucidate recent results metal(oid) concentrations, levels, multivariate statistical analyses, source identification using positive matrix factorization models, probabilistic health risks. The findings reveal that concentrations chromium, nickel, arsenic, cadmium, lead exceeded acceptable limits drinking established World Health Organization (WHO) factors 4.64, 2.25, 22.51, 45.60, 10.13, respectively. Our meta-analysis, subsequent Principal Component Analysis, indicated increased hazardous metals account 85.47% variation both anthropogenic natural causes. Ecological risk indicators, including metal index (84.06) Nemerow (10.55), contamination. like indicate substantial (PMF) model detected following sources water: industrial (22%), mixed (32%), agricultural activities (27%), (19%). Furthermore, Monte Carlo-simulation-based assessments hazards mean hazard (HI) cancer values adults (301.89 422.76) children (51.56 39.45) significantly recommended limits, suggesting are vulnerable potential non-carcinogenic carcinogenic immediate execution control measures regulations essential avert escalating water, protect ecosystems, mitigate hazards.

Язык: Английский

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Pollutant Removal Performance of Bluelay: A Potential Sustainable Drainage Material for Mitigating Urban Road Runoff

Опубликована: Янв. 1, 2025

Язык: Английский

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