Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/64123EEA-E64F-4F68-A892-558FA6D562FD | - |
| Identifier | https://doi.org/10.1016/j.watres.2008.02.026 | - |
| Identifier | http://www.sciencedirect.com/science/article/pii/S0043135408001012 | - |
| Language | en | - |
| Extent | 6 pages | en |
| Title | Complete treatment of olive pomace leachate by coagulation, activated-carbon adsorption and electrochemical oxidation | en |
| Creator | Xekoukoulotakis Nikos | en |
| Creator | Ξεκουκουλωτακης Νικος | el |
| Creator | Mantzavinos Dionysis | en |
| Creator | Μαντζαβινος Διονυσης | el |
| Creator | Diamantopoulos Evaggelos | en |
| Creator | Διαμαντοπουλος Ευαγγελος | el |
| Creator | Mavros, Michael N | en |
| Publisher | Elsevier | en |
| Content Summary | A battery scheme comprising sequential alum coagulation, activated-carbon adsorption and electrochemical oxidation over boron-doped diamond electrodes to mineralize a leachate from olive pomace processing is demonstrated. The effect of coagulant and adsorbent concentration on treatment efficiency was assessed in the range 0.1–50 mM Al3+ and 2.5–50 g/L activated-carbon and optimal conditions were established. Coagulation at 7.5 mM Al3+ resulted in substantial solids and color removal (i.e. 80% and 93%, respectively). This was accompanied by only 30% chemical oxygen demand (COD) reduction (initial COD was about 3500 mg/L). The latter increased to 80% though when coagulation was coupled with adsorption at 25 g/L activated carbon. Electrochemical oxidation of the original effluent for 360 min led to 63% and 82% COD reduction at 10 and 20 A current intensity, respectively. When this process was tested as a polishing stage following coagulation and adsorption, overall COD removal reached values of 92% and 97%, respectively. The final effluent was also colorless and solids free. However, the treated effluent still exhibited ecotoxicity possibly due to the formation of ecotoxic oxidation products. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-10-21 | - |
| Date of Publication | 2008 | - |
| Bibliographic Citation | M. Mavros, N.P. Xekoukoulotakis, D. Mantzavinos, E. Diamadopoulos, "Complete treatment of olive pomace leachate by coagulation, activated carbon adsorption and electrochemical oxidation", Water Research, Vol. 42, no. 12, pp. 2883-2888, Jun. 2008. doi:10.1016/j.watres.2008.02.026. | en |
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