Comparison of the effectiveness of removing PAHs from the aquatic environment with the use of biochars
DOI:
https://doi.org/10.36119/15.2023.10.7Keywords:
adsorption, biochar, sewage sludge, chicken manure, polycyclic aromatic hydrocarbons, waterAbstract
The aim of the study was to compare the effectiveness of removing PAHs from the aquatic environment as a result of adsorption on biochars obtained from chicken manure and municipal sewage sludge. The sorption process was carried out for doses of biochars of 50 and 100 mg/L. For each dose of biochar, the contact time with PAHs was 90 and 120 minutes. The best results were obtained for a biochar dose of 100 mg/L and a contact time of 120 minutes. For biochar from chicken manure and sewage sludge, the concentration of benzo(a)pyrene decreased by 87.2 and 78.7%, respectively, while for four PAHs standardized in drinking water, the total concentration decreased by 83.5 and 80.2%, respectively. For the remaining PAHs, higher sorption was observed for dibenzo(a,h)anthracene, the concentration of this compound decreased by 83.2%. The smallest changes were shown for naphthalene, the concentration of which decreased by 68.5%. There were no statistically significant differences between sorption on biochar from chicken manure and sewage sludge.
Downloads
References
Grmasha R., Abdulameer M.H., Stenger-Kovács C., Al-sareji O.J., Al-Gazali Z., Al-Juboori R.A., Meiczinger M., Hashim K.S., Polycyclic aromatic hydrocarbons in the surface water and sediment along Euphrates River system: Occurrence, sources, ecological and health risk assessment, Marine Pollution Bulletin, 187(2023), 114568. https://doi.org/10.1016/j.marpolbul.2022.114568.
Manoli E., Samara C., Polycyclic aromatic hydrocarbons in natural waters: sources, occurrence and analysis, TrAC Trends in Analytical Chemistry, 18(1999), 417-428. https://doi.org/10.1016/S0165-9936(99)00111-9.
Zhang Z.L., Hong H.S., Zhou J.L., Yu G., Phase association of polycyclic aromatic hydrocarbons in the Minjiang river Estuary, China. Sci. Total Environ., 323(2004), 71-86. DOI: 10.1016/j.scitotenv.2003.09.026
Downloads
Published
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright and grant the journal the right of first publication, with the work simultaneously licensed under a Creative Commons Attribution 4.0 International License, which permits others to share the work with appropriate acknowledgment of the authorship and initial publication in this journal.
