The Application of Wood Biowaste Chemically Modified by Bi2O3 as a Sorbent Material for Wastewater Treatment

Textile dyes discharged into aquatic systems can have significant environmental impacts, causing water pollution and toxicity to aquatic life, and constituting a human health risk. To manage these effects, the sorption ability of wood biowaste chemically modified by Bi2O3 for textile dye removal was...

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Published inProcesses Vol. 12; no. 9; p. 2025
Main Authors Velinov, Nena, Radović Vučić, Miljana, Jerman, Ivan, Marković Nikolić, Dragana, Nikolić, Goran, Bojić, Danijela, Bojić, Aleksandar
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 20.09.2024
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Summary:Textile dyes discharged into aquatic systems can have significant environmental impacts, causing water pollution and toxicity to aquatic life, and constituting a human health risk. To manage these effects, the sorption ability of wood biowaste chemically modified by Bi2O3 for textile dye removal was investigated. Sorbent characterization was performed using scanning electron microscopy, and elemental analysis by energy dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), the Brunauer–Emmett–Teller (BET) method for the specific surface area, and Fourier transform infrared spectroscopy–attenuated total reflectance (FTIR-ATR). The optimization of the sorption process was carried out, and optimal parameters, such as contact time, pH, the dose of sorbent, the concentration of dye, and temperature, were defined. Also, desorption studies were conducted. Kinetics and isotherms studies were carried out, and the data fits to a pseudo-second order model (r2 ≥ 0.99) and Langmuir model (r2 ≥ 0.99), indicating that the process occurs in the monolayer form and the dye sorption depends on the active sites of the sorbent surface. The maximal sorption capacity of the sorbent was 434.75 mg/g.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr12092025