Steel slag as a low-cost sorbent for metal removal in the presence of chelating agents
2015 (English)In: Journal of Industrial and Engineering Chemistry, ISSN 1226-086X, E-ISSN 1876-794X, Vol. 27, p. 115-125Article in journal (Refereed) Published
Abstract [en]
Industrial byproduct, steel slag was used as a low-cost sorbent for the removal of Co(II), Ni(II), Cd(II), and Pb(II) from aqueous solutions containing chelating agents; EDTA, citrate, and oxalate. Equilibrium and kinetic studies were conducted. Clear dependency between speciation of metals and their sorption behavior was observed. Precipitation and adsorption were suggested as main mechanisms. Diffusion played an important role in the kinetics of metal removal. Notable leaching of elements was observed when steel slag was in contact with the solutions under study. Modification with chitosan was successfully used to prevent leaching and improve the sorption capacity of steel slag.
Place, publisher, year, edition, pages
2015. Vol. 27, p. 115-125
Keywords [en]
Adsorption, Byproduct slag, EDTA, Low-cost sorbent, Metal chelates, Water treatment, Chelation, Costs, Leaching, Lead, Metals, Slags, Sorption, Chelating agent, Industrial by-products, Kinetic study, Low cost sorbents, Metal chelate, Sorption behaviors, Sorption capacities, Chemicals removal (water treatment)
National Category
Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-27678DOI: 10.1016/j.jiec.2014.12.025ISI: 000357225200016Scopus ID: 2-s2.0-84930817863OAI: oai:DiVA.org:mdh-27678DiVA, id: diva2:793398
2015-03-062015-03-062025-10-10Bibliographically approved