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Anaerobic/anoxic/oxic configuration in hybrid moving bed biofilm reactor-membrane bioreactor for nutrient removal from municipal wastewater
被引:80
作者:
Leyva-Diaz, J. C.
[1
,2
]
Munio, M. M.
[3
]
Gonzalez-Lopez, J.
[2
]
Poyatos, J. M.
[1
,2
]
机构:
[1] Univ Granada, Dept Civil Engn, E-18071 Granada, Spain
[2] Univ Granada, Inst Water Res, E-18071 Granada, Spain
[3] Univ Granada, Dept Chem Engn, E-18071 Granada, Spain
关键词:
Phosphorus removal;
Nitrogen removal;
Autotrophic kinetics;
Moving bed biofilm reactor;
Membrane bioreactor;
Wastewater treatment;
BIOLOGICAL PHOSPHORUS REMOVAL;
PILOT-PLANT EXPERIMENT;
2-STEP NITRIFICATION;
NITROGEN REMOVAL;
NITRIFYING BACTERIA;
SLUDGE;
DENITRIFICATION;
SYSTEM;
SIMULATION;
PARAMETERS;
D O I:
10.1016/j.ecoleng.2016.03.006
中图分类号:
Q14 [生态学(生物生态学)];
学科分类号:
071012 ;
0713 ;
摘要:
A membrane bioreactor (MBRp), a hybrid moving bed biofilm reactor-membrane bioreactor containing carriers in the anaerobic, anoxic and aerobic zones (hybrid MBBR-MBRap) and a hybrid moving bed biofilm reactor-membrane bioreactor which contained carriers only in the anaerobic and anoxic compartments (hybrid MBBR-MBRbp) were used in parallel and compared regarding the nutrient and organic matter removal from municipal wastewater. The hydraulic retention time (HRT) was 18 h. A kinetic study for the heterotrophic and autotrophic bacteria, mainly nitrite-oxidizing bacteria (NOB), was carried out and related to the nutrient and organic matter removal. The hybrid MBBR-MBRap performed best regarding chemical oxygen demand (COD) and total phosphorus (TP) removals, with values of 85.82 +/- 2.12% and 81.42 +/- 3.85%, respectively. This system had a higher phosphorus release under anaerobic conditions and a higher phosphorus uptake under aerobic conditions. The highest TN removal efficiency was obtained for the hybrid MBBR-MBRbp, with a value of 61.39 +/- 10.71%. (C) 2016 Elsevier B.V. All rights reserved.
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页码:449 / 458
页数:10
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