Simultaneous adsorption of polycyclic aromatic hydrocarbons (PAHs) on biochar from sewage sludge.

IF 5.8 3区环境科学与生态学 0 ENVIRONMENTAL SCIENCES

Environmental Science and Pollution Research Pub Date : 2025-03-14 DOI:10.1007/s11356-025-36255-0

Natiele Kleemann, Andrei Igansi, Nauro Silveira, Luiz Pinto, Tito Cadaval, Jean Arias, Sergiane Barbosa, Ednei Primel, Adilson Bamberg

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引用次数: 0

Abstract

PAHs are organic pollutants of great environmental persistence. This study produced biochar of sewage sludge from a treatment plant and used it as an adsorbent in a complex system containing 16 priority PAHs. The biochar was characterized by the morphology and elemental composition (SEM/EDS), specific surface area, and pore size using N₂ adsorption-desorption (BET/BJH), crystallinity (DRX), functional groups (FTIR), and thermogravimetric degradation (DSC/DTG). The dosage effect showed that 90% of the PAHs were removed when SSB was 2 g L^-1. Kinetic assays were performed using different SSB dosages. The most adequate model to represent the kinetic results was the Elovich. The adsorption capacity and removal percentage of the 16 emerging organic polycyclic aromatic hydrocarbons cited by the US EPA were evaluated individually. The highest adsorption capacity was verified for fluoranthene, pyrene, and phenanthrene, respectively, evidencing the electivity of this material for these compounds.

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来源期刊

Environmental Science and Pollution Research 环境科学-环境科学

CiteScore

8.70

自引率

17.20%

发文量

6549

审稿时长

3.8 months

期刊介绍： Environmental Science and Pollution Research (ESPR) serves the international community in all areas of Environmental Science and related subjects with emphasis on chemical compounds. This includes: - Terrestrial Biology and Ecology - Aquatic Biology and Ecology - Atmospheric Chemistry - Environmental Microbiology/Biobased Energy Sources - Phytoremediation and Ecosystem Restoration - Environmental Analyses and Monitoring - Assessment of Risks and Interactions of Pollutants in the Environment - Conservation Biology and Sustainable Agriculture - Impact of Chemicals/Pollutants on Human and Animal Health It reports from a broad interdisciplinary outlook.