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EnglishThe paper presents an experimental study on a lab scale hybrid moving bed biofilm reactor with intermittent aeration. Specifically, a comparison between two different operating conditions was analyzed: continuous and intermittent aeration. Both continuous and intermittent aeration were monitored and compared in order to get the best operational conditions. The intermittent aeration campaign was sub-divided in three phases with different duration of alternation of aerobic and anoxic times and organic and nitrogen loading rates. The effciency of N-removal improved by 70% during the intermittent aeration. The best condition was observed with 40 min of aeration and 20 min of no-aeration, an organic loading rate of 2.2 kgCODm-3day-1 and a nitrogen loading rate of 0.25 kgNm-3day-1: under these operational conditions the removal effciencies for carbon and nitrogen were 93% and 90%, respectively. The derived results provide the basis for WWTP upgrade in order to meet stricter euent limits at low energy requirements.
Bella G.D., & Mannina G. (2020). Intermittent aeration in a hybrid moving bed biofilm reactor for carbon and nutrient biological removal. WATER, 12(2), 492 [10.3390/w12020492].
| Data di pubblicazione: | 2020 | |
| Titolo: | Intermittent aeration in a hybrid moving bed biofilm reactor for carbon and nutrient biological removal | |
| Autori: | ||
| Citazione: | Bella G.D., & Mannina G. (2020). Intermittent aeration in a hybrid moving bed biofilm reactor for carbon and nutrient biological removal. WATER, 12(2), 492 [10.3390/w12020492]. | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.3390/w12020492 | |
| Abstract: | The paper presents an experimental study on a lab scale hybrid moving bed biofilm reactor with intermittent aeration. Specifically, a comparison between two different operating conditions was analyzed: continuous and intermittent aeration. Both continuous and intermittent aeration were monitored and compared in order to get the best operational conditions. The intermittent aeration campaign was sub-divided in three phases with different duration of alternation of aerobic and anoxic times and organic and nitrogen loading rates. The effciency of N-removal improved by 70% during the intermittent aeration. The best condition was observed with 40 min of aeration and 20 min of no-aeration, an organic loading rate of 2.2 kgCODm-3day-1 and a nitrogen loading rate of 0.25 kgNm-3day-1: under these operational conditions the removal effciencies for carbon and nitrogen were 93% and 90%, respectively. The derived results provide the basis for WWTP upgrade in order to meet stricter euent limits at low energy requirements. | |
| Settore Scientifico Disciplinare: | Settore ICAR/03 - Ingegneria Sanitaria-Ambientale | |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 3rdReviewPaper-water-697161-GM.pdf | Pre-print | Open Access Visualizza/Apri |
http://hdl.handle.net/10447/430936
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