Adsorption study of waste materials as potential adsorbents for pollutant removal and storage

0511162 - ÚSMH 2020 RIV CZ eng C - Conference Paper (international conference)
Řimnáčová, Daniela - Vorokhta, Maryna - Vöröš, Dominik - Borecká, Lenka - Bičáková, Olga
Adsorption study of waste materials as potential adsorbents for pollutant removal and storage.
Proceedings of the 7th International Conference on Chemical Technology. Praha: Czech Society of Industrial Chemistry in cooperation with Czech Chemical Society, 2019 - (Veselý, M.; Hrdlička, Z.; Hanika, J.; Lubojacký, J.), s. 324-328. ISBN 978-80-88307-00-6.
[International Conference on Chemical Technology /7./. Mikulov (CZ), 15.04.2019-17.04.2019]
R&D Projects: GA TA ČR(CZ) TH03020119
Grant - others:OPPK(XE) CZ.2.16/3.1.00/21538; AV ČR(CZ) StrategieAV21/3
Program: OPPK; StrategieAV
Institutional support: RVO:67985891
Keywords : CO2 adsorption * high pressure * porous materials
OECD category: Environmental and geological engineering, geotechnics
https://www.icct.cz/AngiologyKlon-ICCT/media/system/2019/ICCT-2019-Proceedings.pdf

The study shows how changing the experimental conditions during carbonization of a waste material such as sewage sludge influences textural properties and the CO2adsorption capacity of final carbonized productsin their potential use for removaland storage of pollutantssuch as carbon dioxide. The CO2adsorption measurements were done with gravimetric and manometric sorption devices in a wide range of pressures and temperatures. Further, CO2adsorption capacities of other materialssuch as activated carbon prepared from black carbon and a Czech Silurian shalewere compared toadsorption capacities of the studied carbonized sewage sludge. These two compared materials were chosen according to their compositionsand porosity.The porosityof the studied materials was determined from the N2sorption isotherms and measurements of their skeletal density with He.The adsorption capacity depended on the ratio of micropores and mesopores in the carbonized sewage sludge, because CO2fillsmicropores and mesopores at lowand highpressures, respectively, and was decreasing with the temperature increase atconstant pressure.The adsorption capacity of the carbonized sewage sludgewas increased by increase inthe carbonization temperature.The obtained adsorption capacities showed that the carbonization of sewage sludge can lead to preparation of perspective adsorbents for CO2capture and storage.
Permanent Link: http://hdl.handle.net/11104/0301498