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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI | http://purl.tuc.gr/dl/dias/CA700D93-DEAC-46F9-8985-75EEC7643F71 | - |
| Identifier | https://doi.org/10.3390/w4010260 | - |
| Language | en | - |
| Extent | 11 pages | en |
| Title | Treatment of olive mill wastewater with constructed wetlands asset management of medium and small wastewater utilities | en |
| Creator | Tsagarakis Konstantinos | en |
| Creator | Angelakis Andreas | en |
| Creator | Paranychianakis Nikolaos | en |
| Creator | Παρανυχιανακης Νικολαος | el |
| Creator | Kapellakis Iosif | en |
| Creator | Καπελλακης Ιωσηφ | el |
| Publisher | Water | en |
| Content Summary | The objective of this study was to investigate the application of constructed wetlands as a mean to manage olive mill wastewater (OMW). Two free water surface (FWS) constructed wetlands, one without (CW1) and one with effluent recirculation (CW2), were operated for a two-year period with diluted OMW (1:10) and evaluated in terms of the removal of COD, TSS, TKN, NH4+-N, NO3−-N, TP and total phenols. The organic loading rate of CWs was adjusted to 925 kg BOD/ha·d. In CW1 the removal efficiency averaged 80%, 83%, 78%, 80%, and 74% for COD, TSS, TKN, TP, and total phenols, respectively, during the operation period. Effluent recirculation further improved the treatment efficiency which approached 90%, 98%, 87%, 85%, and 87% for COD, TSS, TKN, TP, and total phenols, respectively. Constructed wetlands also showed high removal efficiency for NH4+-N. Nitrate concentration maintained low in both CWs basins, probably due to the prevalence of high denitrification rates that efficiently removed the NO3--N produced by NH4+-N oxidation. Despite the increased removal percentages, pollutant concentration in effluent exceeded the allowable limits for discharge in water bodies, suggesting that additional practices, including enhanced pre-application treatment and/or higher dilution rates, are required to make this practice effective for OMW management. | en |
| Type of Item | Πλήρης Δημοσίευση σε Συνέδριο | el |
| Type of Item | Conference Full Paper | en |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-11-07 | - |
| Date of Publication | 2009 | - |
| Subject | nutrient removal | en |
| Bibliographic Citation | I.E. Kapellakis, N.V. Paranychianakis, K.P. Tsagarakis, A.N. Angelakis , " Treatment of olive mill wastewater with constructed wetlands asset management of medium and small wastewater utilities," in 2009 International Water Association ( IWA), pp. 260-271. doi:10.3390/w4010260 | en |
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