Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/73C688D3-7A11-4E06-AFAA-AA578F5E2655 | - |
| Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0304389410000865 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.jhazmat.2010.01.053 | - |
| Γλώσσα | en | - |
| Μέγεθος | 8 pages | en |
| Τίτλος | BTEX and MTBE adsorption onto raw and thermally modified diatomite | en |
| Δημιουργός | Aivalioti Maria | en |
| Δημιουργός | Αϊβαλιωτη Μαρια | el |
| Δημιουργός | Vamvasakis Ioannis | en |
| Δημιουργός | Gidarakos Evaggelos | en |
| Δημιουργός | Γιδαρακος Ευαγγελος | el |
| Εκδότης | Elsevier | en |
| Περίληψη | The removal of BTEX (benzene, toluene, ethyl-benzene and xylenes) and MTBE (methyl tertiary butyl ether) from aqueous solution by raw (DR) and thermally modified diatomite at 550, 750 and 950 °C (D550, D750 and D950 respectively) was studied. Physical characteristics of both raw and modified diatomite such as specific surface, pore volume distribution, porosity and pHsolution were determined, indicating important structural changes in the modified diatomite, due to exposure to high temperatures. Both adsorption kinetic and isotherm experiments were carried out. The kinetics data proved a closer fit to the pseudo-second order model. Maximum values for the rate constant, k2, were obtained for MTBE and benzene (48.9326 and 18.0996 g mg−1 h−1, respectively) in sample D550. The isotherm data proved to fit the Freundlich model more closely, which produced values of the isotherm constant 1/n higher than one, indicating unfavorable adsorption. The highest adsorption capacity, calculated through the values of the isotherm constant kF, was obtained for MTBE (48.42 mg kg−1 (mg/L)n) in sample D950. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-11-01 | - |
| Ημερομηνία Δημοσίευσης | 2010 | - |
| Θεματική Κατηγορία | Diatomite | en |
| Θεματική Κατηγορία | Adsorption | en |
| Θεματική Κατηγορία | BTEX | en |
| Θεματική Κατηγορία | MTBE | en |
| Βιβλιογραφική Αναφορά | M. Aivalioti, I. Vamvasakis and E. Gidarakos, "BTEX and MTBE adsorption onto raw and thermally modified diatomite", J. Hazard. Mater., vol. 178, no. 1-3, pp. 136-143, Jun. 2010. doi:10.1016/j.jhazmat.2010.01.053 | en |
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