dc.creator | Stanišić, Tijana | |
dc.creator | Đolić, Maja | |
dc.creator | Ćujić, Mirjana | |
dc.creator | Ristić, Mirjana | |
dc.creator | Perić-Grujić, Aleksandra | |
dc.date.accessioned | 2023-03-23T13:59:40Z | |
dc.date.available | 2023-03-23T13:59:40Z | |
dc.date.issued | 2021 | |
dc.identifier.isbn | 978-86-7498-087-3 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6313 | |
dc.description.abstract | Olovo i arsen predstavljaju značajnu grupu neorganskih polutanata koji su prisutni u
životnoj sredini, pre svega u vodenim sistemima, pa je njihovo uklanjanje veliki tehničkotehnološki izazov. Zbog toga se sve više pažnje posvećuje razvoju pristupačnih, efikasnih i
ekološki prihvatljivih adsorbenata. Prirodni materijali na bazi oksida metala (SiO2, Al2O3,
Fe2O3), poput ilovače, predstavljaju efikasne adsorbente za uklanjanje katjonskih i anjonskih
vrsta iz vodenih rastvora. U ovom radu adsorpciona svojstva ilovače ispitivana su u šaržnom
sistemu, promenom pH vrednosti početnog rastvora, dok su masa adsorbenta, vreme i
temperature procesa bili konstantni. Značajnu ulogu u odvijanju adsorpcionog procesa ima pH
vrednost rastvora, stoga se eksperiment zasnivao na određivanju efikasnosti procesa pri vrednosti
pH rastvora 4, 5 i 6. Strukturne karakteristike ilovače su određene primenom rendgenske
difrakcione analize (engl. X-Ray Difraction, XRD), infracrvenom spektroskopijom sa Furijeovom
transformacijom (engl. Fourier-Transform Infrared Spectroscopy, FTIR) i skenirajuće elektronske
mikroskopije (engl. Scanning electron microscopy, SEM). Koncentracija jona nakon procesa
adsorpcije određena je pomoću indukovano spregnute plazme sa masenom spektrometrijom (engl.
Inductively Coupled Plasma Mass Spectrometry, ICP-MS). Maksimalna efikasnost uklanjanja
jona olova postignuta je na pH vrednosti 5 (94,2 %), dok je za jone arsena optimalna pH vrednost
bila 6 (35,1 %). | sr |
dc.description.abstract | Lead and arsenic represent an important group of inorganic pollutants that can be found in the environment, primarily in aquatic systems. Their removal from water systems is a big environmental problem, but also a significant technological challenge. Therefore, an increasing attention is paid to the development of widely available, efficient and environmentally friendly adsorbents. Natural metal oxide-based materials (SiO2, Al2O3, Fe2O3), such as loam, are effective adsorbents for removal of cationic and anionic species. The adsorption experiments were performed in a batch system, varying the pH value of the initial solution, while the mass of adsorbent, time and temperature were constant. The influence of pH value has a leading influence to the adsorption process so the process efficiency was determined at the pH values set at: 4, 5 and 6. The structural characteristics of the loam was performed using X-ray diffraction analysis (XRD), Fourier-Transform Infrared Spectroscopy (FTIR) and scanning electron microscopy (SEM). The concentration of ions after their removal was determined using inductively coupled plasma mass spectrometry (ICP-MS). The maximum removal of lead ions was obtained at pH 5 (94.2%), while for arsenic ions, it was at pH 6 (35.1%). | sr |
dc.language.iso | sr | sr |
dc.publisher | Akademija tehničkih strukovnih studija Beograd | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200287/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | 6. Naučno-stručni skup Politehnika, Zbornik radova | sr |
dc.subject | katjonske i anjonske vrste | sr |
dc.subject | prirodni materijali | sr |
dc.subject | adsorpcija | sr |
dc.subject | ICP-MS | sr |
dc.subject | cationic and anionic species | sr |
dc.subject | natural materials | sr |
dc.subject | adsorption | sr |
dc.title | Ispitivanje adsorpcionih svojstava ilovače za uklanjanje jona olova i arsena iz vodenih rastvora | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY | sr |
dc.citation.epage | 148 | |
dc.citation.spage | 143 | |
dc.identifier.fulltext | http://TechnoRep.tmf.bg.ac.rs/bitstream/id/16864/bitstream_16864.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_technorep_6313 | |
dc.type.version | publishedVersion | sr |