Zinc Adsorption by Activated Carbon Prepared from Lignocellulosic Waste Biomass

Applied Sciences

Henrik Romar¹  Teija Kangas¹  Sari Tuomikoski¹  Hanna Runtti¹  Ulla Lassi¹  Riikka Kupila²  Davide Bergna² 

[1] Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland;Unit of Applied Chemistry, Kokkola University Consortium Chydenius, University of Jyvaskylä, Talonpojankatu 2B, FI-67100 Kokkola, Finland;

关键词: lignocellulosic biomass;    adsorption;    carbonization;    adsorbent;    zinc;    regeneration;   

DOI  :  10.3390/app9214583

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown