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2021, vol. 10, br. 1, str. 5-10
Uklanjanje benzoeve kiseline aktivnim ugljem iz vodenih rastvora
Univerzitet u Nišu, Tehnološki fakultet, Leskovac, Srbija

e-adresamilenkovic_sanja@yahoo.com
Projekat:
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (institucija: Univerzitet u Nišu, Tehnološki fakultet, Leskovac) (MPNTR - 451-03-68/2020-14/200133)

Sažetak
Benzoeva kiselina se široko koristi prvenstveno u hrani, ali i u kozmetičkim, farmaceutskim i drugim proizvodima. Zbog zapaženih kancerogenih i toksičnih karakteristika pri određenoj koncentraciji, smatra se zagađivačem koji postaje važan ekološki problem. Iz tog razloga, komercijalni aktivni ugalj je testiran za uklanjanje benzoeve kiseline iz vodenih rastvora. Uklanjanje benzoeve kiseline u šaržnom i kolonskom sistemu je ispitano pri različitim vrednostima pH, temperature, granulacije i mase aktivnog uglja. Analiza svih uzoraka izvršena primenom vidljive apsorpcione spektrometrije. Utvrđeno je da su optimalni uslovi za uklanjanje benzoeve kiseline u šarznom sistemu pH 3, vreme kontakta od 60 min, temperatura od 273.65 K i doza adsorbenta od 10 g L-1 Uklanjanje benzoeve kiseline može se izvršiti i u sistemu kolona u kome se najveća količina benzoeve kiseline uklanja tokom prvih 20 minut (70%), a zasićenje kolone ispunjene aktivnim ugljem javlja nakon 70 min. Korišćene metode uklanjanja benzoeve kiseline mogu se okarakterisati kao jednostavne, ekonomične, brze i ne zahtevaju hemijsku obradu.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/savteh2101005P
primljen: 26.11.2020.
prihvaćen: 20.12.2020.
objavljen u SCIndeksu: 10.07.2021.

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