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Magnetic adsorbent based on the electric arc furnace dust for the removal of methylene blue dye from aqueous solution
Author(s) -
Shamsi Zahra,
Mohamadi Zahra,
Zamani Abbasali,
Alizadeh Azadeh
Publication year - 2021
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.13636
Subject(s) - methylene blue , aqueous solution , electric arc furnace , adsorption , electric arc , chemistry , materials science , chemical engineering , waste management , nuclear chemistry , metallurgy , electrode , organic chemistry , photocatalysis , engineering , catalysis
There are different solutions to manage industrial sewage, and recently reusing the useful materials in sewage is a trending topic among environmentalists. In this study, electric arc furnace dust (EAFD), a by‐product of the steelmaking industry, and finding a way to it reuse will be the main topic of this article. EAFD with 37% iron (Fe) content as the magnetic adsorbents has a good ability to treat contaminated water. The batch method was used to evaluate the effective parameters for removing methylene blue with a magnetic adsorbent, such as the initial concentrations of dye, the pH of the solution, time dependency, and the amount of adsorbent. The results showed that 3 g of the adsorbent could remove 93 ± 1% of the methylene blue from the 100 ml of an aqueous solution with an initial concentration of 5 ppm during 20 min at pH = 6. Kinetic data and the adsorption isotherms were better fitted with the pseudo‐second‐order model ( R 2 = 0.99) and Freundlich models ( R 2 = 0.97), respectively, which confirmed the chemisorption. The real sample's recovery results with three replicate confirmed the MB removal was dramatically reduced by more than 80%.