dc.creator | Pantić, Krstimir | |
dc.creator | Bajić, Zoran J. | |
dc.creator | Veličković, Zlate | |
dc.creator | Nesić, Jovica Z. | |
dc.creator | Đolić, Maja | |
dc.creator | Tomić, Nataša | |
dc.creator | Marinković, Aleksandar | |
dc.date.accessioned | 2021-03-10T13:55:20Z | |
dc.date.available | 2021-03-10T13:55:20Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0944-1344 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4071 | |
dc.description.abstract | This batch and column kinetics study of arsenic removal utilized copper-impregnated natural mineral tufa (T-Cu(A-C)) under three ranges of particle size. Non-competitive kinetic data fitted by the Weber-Morris model and the single resistance mass transfer model, i.e., mass transfer coefficient k(f)a and diffusion coefficient (D-eff) determination, defined intra-particle diffusion as the dominating rate controlling step. Kinetic activation parameters, derived from pseudo-second-order rate constants, showed low dependence on adsorbent geometry/morphology and porosity, while the diffusivity of the pores was significant to removal efficacy. The results of competitive arsenic adsorption in a multi-component system of phosphate, chromate, or silicate showed effective arsenic removal using T-Cu adsorbents. The high adsorption rate-pseudo-second-order constants in the range 0.509-0.789gmg(-1)min(-1) for As(V) and 0.304-0.532gmg(1)min(1) for As(III)-justified further application T-Cu(A-C) in a flow system. The fixed-bed column adsorption data was fitted using empirical Bohart-Adams, Yoon-Nelson, Thomas, and dose-response models to indicate capacities and breakthrough time dependence on arsenic influent concentration and the flow rate. Pore surface diffusion modeling (PSDM), following bed-column testing, further determined adsorbent capacities and mass transport under applied hydraulic loading rates. | en |
dc.publisher | Springer Heidelberg, Heidelberg | |
dc.relation | University of Defense, Republic of Serbia [VA-TT/4/16-18] | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43009/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS// | |
dc.rights | restrictedAccess | |
dc.source | Environmental Science and Pollution Research | |
dc.subject | Arsenite | en |
dc.subject | Arsenate | en |
dc.subject | Copper | en |
dc.subject | Column study | en |
dc.subject | Adsorption | en |
dc.subject | Modeling | en |
dc.title | Arsenic removal by copper-impregnated natural mineral tufa part II: a kinetics and column adsorption study | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 24161 | |
dc.citation.issue | 23 | |
dc.citation.other | 26(23): 24143-24161 | |
dc.citation.rank | M22 | |
dc.citation.spage | 24143 | |
dc.citation.volume | 26 | |
dc.identifier.doi | 10.1007/s11356-019-05547-7 | |
dc.identifier.pmid | 31228066 | |
dc.identifier.scopus | 2-s2.0-85068183051 | |
dc.identifier.wos | 000477958300078 | |
dc.type.version | publishedVersion | |