Abstract
| Lingua originale | English |
|---|---|
| pagine (da-a) | 1-11 |
| Numero di pagine | 11 |
| Rivista | Journal of Environmental Management |
| Stato di pubblicazione | Published - 2019 |
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All Science Journal Classification (ASJC) codes
- Environmental Engineering
- Waste Management and Disposal
- Management, Monitoring, Policy and Law
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Simultaneous sludge minimization, biological phosphorous removal and membrane fouling mitigation in a novel plant layout for MBR. / Di Trapani, Daniele; Silva De Oliveira, Taissa; Corsino, Santo Fabio; Torregrossa, Michele; Viviani, Gaspare.
In: Journal of Environmental Management, 2019, pag. 1-11.Risultato della ricerca: Article
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TY - JOUR
T1 - Simultaneous sludge minimization, biological phosphorous removal and membrane fouling mitigation in a novel plant layout for MBR
AU - Di Trapani, Daniele
AU - Silva De Oliveira, Taissa
AU - Corsino, Santo Fabio
AU - Torregrossa, Michele
AU - Viviani, Gaspare
PY - 2019
Y1 - 2019
N2 - The integration of one anaerobic reactor in the mainstream (AMSR) of a pre-denitritication-MBR was evaluated with the aim to achieve simultaneous sludge minimization and phosphorous removal. The excess sludge production was reduced by 64% when the AMSR was operated under 8h of hydraulic retention time (HRT). The highest nutrients removal performances referred to organic carbon (98%), nitrogen (90%) and phosphorous (97%) were obtained under 8 h of HRT. In contrast, prolonged anaerobic-endogenous conditions were found to be detrimental for all nutrients removal performances. Similarly, the lowest membrane fouling tendency (FR=0.65∙1011 m-1 d-1) was achieved under 8 h of HRT, whereas it significantly increased under higher HRT. The highest polyphosphate accumulating organisms kinetics were achieved under HRT of 8 h, showing very high exogenous P-release (46.67 mgPO4-P gVSS-1 h-1) and P-uptake rates (48.6 mgPO4-P gVSS-1 h-1), as well as a not negligible P-release rate under endogenous conditions at low COD/P ratio (≈ 1).
AB - The integration of one anaerobic reactor in the mainstream (AMSR) of a pre-denitritication-MBR was evaluated with the aim to achieve simultaneous sludge minimization and phosphorous removal. The excess sludge production was reduced by 64% when the AMSR was operated under 8h of hydraulic retention time (HRT). The highest nutrients removal performances referred to organic carbon (98%), nitrogen (90%) and phosphorous (97%) were obtained under 8 h of HRT. In contrast, prolonged anaerobic-endogenous conditions were found to be detrimental for all nutrients removal performances. Similarly, the lowest membrane fouling tendency (FR=0.65∙1011 m-1 d-1) was achieved under 8 h of HRT, whereas it significantly increased under higher HRT. The highest polyphosphate accumulating organisms kinetics were achieved under HRT of 8 h, showing very high exogenous P-release (46.67 mgPO4-P gVSS-1 h-1) and P-uptake rates (48.6 mgPO4-P gVSS-1 h-1), as well as a not negligible P-release rate under endogenous conditions at low COD/P ratio (≈ 1).
UR - http://hdl.handle.net/10447/390201
M3 - Article
SP - 1
EP - 11
JO - Journal of Environmental Management
JF - Journal of Environmental Management
SN - 0301-4797
ER -