Zinc adsorption by activated carbon prepared from lignocellulosic waste biomass
Tuomikoski, Sari; Kupila, Riikka; Romar, Henrik; Bergna, Davide; Kangas, Teija; Runtti, Hanna; Lassi, Ulla (2019-10-28)
Tuomikoski, S.; Kupila, R.; Romar, H.; Bergna, D.; Kangas, T.; Runtti, H.; Lassi, U. (2019) Zinc Adsorption by Activated Carbon Prepared from Lignocellulosic Waste Biomass. Appl. Sci, 9 (21), 4583. doi:10.3390/app9214583
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2019102935540
Tiivistelmä
Abstract
Sawdust was used as a precursor for the production of biomass-based activated carbon. Carbonization and activation are single-stage processes, and steam was used as a physical activation agent at 800 °C. The adsorption capacity towards zinc was tested, and the produced activated carbon proved effective and selectively adsorbent. The effects of pH, initial concentration, adsorbent dosage, time, temperature, and regeneration cycles were tested. The adsorption capacity obtained in this study was compared favorably to that of the materials reported in the literature. Several isotherms were applied to describe the experimental results, with the Sips isotherm having the best fit. Kinetic studies showed that the adsorption follows the Elovich kinetic model.
Kokoelmat
- Avoin saatavuus [34279]
