Adsorption kinetics of Cr(VI) ions onto biochar from brewer’s spent grain

Autor:	M Jelena Prodanovic, N Sanja Panic, V Dragana Kukic, M Vesna Vasic, D Jelena Pejin, T Nevena Blagojev, S Milos Radosavljevic, B Marina Sciban
Rok vydání:	2019
Předmět:	Adsorption kinetics adsorption Chemistry lcsh:Technology (General) Biochar Inorganic chemistry kinetic General Engineering lcsh:T1-995 biochar chromium brewer’s spent grain Ion
Zdroj:	Acta Periodica Technologica, Vol 2019, Iss 50, Pp 134-142 (2019)
ISSN:	2406-095X 1450-7188
Popis:	In this paper adsorption kinetic of Cr(VI) ions onto biochar from brewer’s spent grain was studied. The same study was performed on biochar activated by KOH and H3PO4. Non-activated biochar showed a greater ability to bind Cr(VI) ions at the same initial concentration and 10 times lower dose compared to the brewer’s spent grain. The investigation of activation effect showed that it did not improve the adsorption properties of biochar. The analysis of kinetic data showed that the best description provided pseudo-second order equation and that adsorption takes place as chemisorption on all investigated adsorbents. Diffusion study showed that pore diffusion occurs only on biochar activated by phosphorus acid. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III 43005 and Grant no. OI 172059]
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53fee425abdb66f5036b92f2e863dd80 https://doi.org/10.2298/apt1950134k Zobrazit plný text záznamu