Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.scitotenv.2018.06.395
Volltext Autorenversion
Titel (primär) Hydrothermal treatment for regeneration of activated carbon loaded with organic micropollutants
Autor Sühnholz, S.; Kopinke, F.-D.; Weiner, B.
Quelle Science of the Total Environment
Erscheinungsjahr 2018
Department TUCHEM
Band/Volume 644
Seite von 854
Seite bis 861
Sprache englisch
Keywords Activated carbon; Hydrothermal treatment; Wastewater treatment; Organic pollutants
Abstract Hydrothermal treatment (HT) at 200 °C and 240 °C for 4 and 16 h was studied for the regeneration of granular activated carbon (AC) loaded with a range of organic micropollutants having a broad range of physico-chemical properties. Carbamazepine, diazinon, diclofenac, estrone, iohexol, metoprolol and sulfamethoxazole were fully converted. Limits were seen for the conversion of caffeine, ibuprofen and perfluorooctanesulfonate (PFOS). However, the degree of degradation was enhanced for the latter compounds in the adsorbed state as compared to experiments in aqueous solution. The methodology was tested in five loading and regeneration cycles for selected compounds with no change of the degradation potential and of the AC properties. In particular, the surface properties of the AC did not deteriorate upon HT as determined by the specific surface area (from BET isotherms), the point of zero charge, and the surface functional groups (from diffuse reflectance IR spectroscopy). As the total concentration of the loaded pollutants was minimized by HT, this method could be considered as a new low temperature regeneration technology for spent AC.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=20993
Sühnholz, S., Kopinke, F.-D., Weiner, B. (2018):
Hydrothermal treatment for regeneration of activated carbon loaded with organic micropollutants
Sci. Total Environ. 644 , 854 - 861 10.1016/j.scitotenv.2018.06.395