Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI | http://purl.tuc.gr/dl/dias/0DEC6C16-8B64-4611-9D20-223BF450096E | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.watres.2006.04.006 | - |
| Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0043135406002235 | - |
| Γλώσσα | en | - |
| Μέγεθος | 11 pages | en |
| Τίτλος | Arsenic removal from geothermal waters with zero-valent iron—Effect of temperature, phosphate and nitrate | en |
| Δημιουργός | Tyrovola Konstantina | en |
| Δημιουργός | Τυροβολα Κωνσταντινα | el |
| Δημιουργός | Nikolaidis Nikolaos | en |
| Δημιουργός | Νικολαιδης Νικολαος | el |
| Δημιουργός | Veranis Nikolaos | en |
| Δημιουργός | Kallithrakas-Kontos Nikolaos | en |
| Δημιουργός | Καλλιθρακας-Κοντος Νικολαος | el |
| Δημιουργός | Koulouridakis Pavlos | en |
| Δημιουργός | Κουλουριδακης Παυλος | el |
| Εκδότης | Elsevier | en |
| Περίληψη | Field column studies and laboratory batch experiments were conducted in order to assess the performance of zero-valent iron in removing arsenic from geothermal waters in agricultural regions where phosphates and nitrates were present. A field pilot study demonstrated that iron filings could remove arsenic, phosphate and nitrate from water. In addition, batch studies were performed to evaluate the effect of temperature, phosphate and nitrate on As(III) and As(V) removal rates. All batch experiments were conducted at three temperatures (20, 30 and 40 °C). Pseudo-first-order reaction rate constants were calculated for As(III), As(V), phosphate, nitrate and ammonia for all temperatures. As(V) exhibited greater removal rates than As(III). The presence of phosphate and nitrate decreased the rates of arsenic removal. The temperature of the water played a dominant role on the kinetics of arsenic, phosphate and nitrate removal. Nitrate reduction resulted in the formation of nitrite and ammonia. In addition, the activation energy, Eact, and the constant temperature coefficient, θ were determined for each removal process. | 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 | 2015-10-08 | - |
| Ημερομηνία Δημοσίευσης | 2006 | - |
| Θεματική Κατηγορία | Geothermal | en |
| Θεματική Κατηγορία | Zero-valent iron | en |
| Θεματική Κατηγορία | Arsenic | en |
| Θεματική Κατηγορία | Phosphate | en |
| Θεματική Κατηγορία | Nitrate | en |
| Βιβλιογραφική Αναφορά | K. Tyrovola, N. P. Nikolaidis, N. Veranis, N. Kallithrakas-Kontos and P.E. Koulouridakis, "Arsenic removal from geothermal waters with zero-valent iron—Effect of temperature, phosphate and nitrate," Water Res., vol. 40, no. 12, pp.2375–2386, Jul. 2006. doi: 10.1016/j.watres.2006.04.006 | en |
Copyright © DIAS 2013
