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Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials
dc.creator | Đolić, Maja | |
dc.creator | Karanac, Milica | |
dc.creator | Radovanović, Dragana | |
dc.creator | Umićević, Ana | |
dc.creator | Kapidžić, Ana | |
dc.creator | Veličković, Zlate | |
dc.creator | Marinković, Aleksandar | |
dc.creator | Kamberović, Željko | |
dc.date.accessioned | 2022-03-04T11:23:57Z | |
dc.date.available | 2022-03-04T11:23:57Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0959-6526 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4916 | |
dc.description.abstract | Fly and bottom ash(es) are the most abundant generated by-products of coal combustion in thermal power plants. This investigation offers a sustainable solution of a double and circular use of industrial waste material in civil engineering practices; i.e., fly ash (FA) as an eco-efficiently, low-cost material for As(V) adsorption, as well as an additive in building materials. A goethite impregnated sample (FAG) was synthesized and optimized using the column precipitation procedure, then thoroughly, structurally and morphologically characterized using liquid nitrogen porosimetry (BET), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and Mossbauer spectroscopy (MS) techniques. The data from the equilibrium adsorption were fitted by linear and non-linear isotherm models; the optimal capacity of FAG/As(V) removal was calculated from the Langmuir model at 31.742 mg g(-1) for 45 degrees C. The kinetics of adsorption process has shown the pseudo-second-order kinetic model (PSO). The Weber-Morris model was applied to determine the intra-particle diffusion as a limiting step of reaction. The low pH dependant FAG leaching confirmed the efficient use of non-hazardous waste material in arsenic removal; furthermore, it also validated the new added value of the used/spent adsorbent as an adhesive in building materials possessing advanced mechanical properties. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | |
dc.rights | restrictedAccess | |
dc.source | Journal of Cleaner Production | |
dc.subject | Fly ash/Goethite | en |
dc.subject | Arsenate removal | en |
dc.subject | Waste minimization | en |
dc.subject | Leaching | en |
dc.subject | Construction material | en |
dc.title | Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.other | 303(): - | |
dc.citation.rank | aM21 | |
dc.citation.volume | 303 | |
dc.identifier.doi | 10.1016/j.jclepro.2021.126924 | |
dc.identifier.scopus | 2-s2.0-85104387674 | |
dc.identifier.wos | 000655680000010 | |
dc.type.version | publishedVersion |