Simultaneous nitrification, denitrification and phosphorus removal in a continuous-flow moving bed biofilm reactor alternating microaerobic and aerobic conditions

2020 ◽  
Vol 310 ◽  
pp. 123453 ◽  
Author(s):  
Francesca Iannacone ◽  
Francesco Di Capua ◽  
Francesco Granata ◽  
Rudy Gargano ◽  
Giovanni Esposito
Keyword(s):  
Phosphorus Removal ◽  
Continuous Flow ◽  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Aerobic Conditions ◽  
Moving Bed

Biological Phosphorus Removal in a Sequencing Batch Moving Bed Biofilm Reactor

1999 ◽  
Vol 40 (4-5) ◽  
pp. 161-168 ◽  
Author(s):  
H. Helness ◽  
H. Ødegaard
Keyword(s):  
Phosphorus Removal ◽  
Batch Reactor ◽  
Complete Removal ◽  
Biofilm Reactor ◽  
Biological Phosphorus Removal ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Biofilm Carrier ◽  
Biofilm Process ◽  
Biological Phosphorus

Experiments have been carried out with biological phosphorus removal in a sequencing batch moving bed biofilm reactor (SBMBBR) with a plastic biofilm carrier (Kaldnes) suspended in the wastewater. The aim of the research leading to this paper was to evaluate biological phosphorus removal in this type of biofilm process. Biological phosphorus removal can be achieved in a moving bed biofilm reactor operated as a sequencing batch reactor. In order to achieve good and stable phosphorus removal over time, the length of the anaerobic period should be tuned to achieve near complete removal of easily biodegradable COD in the anaerobic period. The total COD-loading rate must at the same time be kept high enough to achieve a net growth of biomass in the reactor. Use of multivariate models based on UV-absorption spectra and measurements of the redox potential show potential for control of such a process.

Effect of carbon-to-nitrogen ratio on simultaneous nitrification denitrification and phosphorus removal in a microaerobic moving bed biofilm reactor

2019 ◽  
Vol 250 ◽  
pp. 109518 ◽  
Author(s):  
Francesca Iannacone ◽  
Francesco Di Capua ◽  
Francesco Granata ◽  
Rudy Gargano ◽  
Francesco Pirozzi ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Carbon To Nitrogen Ratio ◽  
Nitrogen Ratio

Inhibition of biological phosphorus removal in a sequencing moving bed biofilm reactor in seawater

2009 ◽  
Vol 59 (6) ◽  
pp. 1101-1110 ◽  
Author(s):  
B. Vallet ◽  
M.-A. Labelle ◽  
L. Rieger ◽  
S. Bigras ◽  
S. Parent ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Simulation Software ◽  
Biofilm Reactor ◽  
Biological Phosphorus Removal ◽  
Moving Bed Biofilm Reactor ◽  
Fish Farms ◽  
High Concentration ◽  
Moving Bed ◽  
Stock Tank ◽  
Biological Phosphorus

A new process was developed to achieve denitrifying biological phosphorus removal in wastewaters containing high levels of nitrate and phosphate with a low level of organic matter. This could particularly be useful in recirculating systems such as aquariums or fish farms to prevent accumulation of nitrate and phosphates and to avoid regular cost extensive and polluting water replacement. Phosphorus (P) was removed from the influent in a sequencing moving bed biofilm reactor, stored in the attached biomass and then cyclically removed from the biomass by filling the reactor with anaerobic water from a stock tank. Phosphate was accumulated in the stock tank which allowed for use as fertilizer. The feasibility of the experimental design was demonstrated by using the activated sludge model No. 3 (ASM3) complemented by the EAWAG Bio-P module implemented in the WEST simulation software. A pilot scale experiment was conducted in two identical reactors in two runs: one to treat water from a marine mesocosm, the other to treat a synthetic freshwater influent. No biological phosphorus removal was achieved during the seawater run. During the freshwater run, average P removal efficiency was 20%, of which 80% was attributed to biological removal and 20% to chemical precipitation. The absence of efficiency in seawater was attributed to the high concentration of calcium.

Nitrogen and Phosphorus Removal Performance and Characteristics of a Sequencing Batch Moving Bed Biofilm Reactor

2011 ◽  
Vol 71-78 ◽  
pp. 2844-2847
Author(s):  
Hai Yan Guo ◽  
Teng Teng Feng ◽  
Zhi Gang Liu ◽  
Zhen Guo
Keyword(s):  
Phosphorus Removal ◽  
Operating Mode ◽  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Moving Bed ◽  
N Removal ◽  
Removal Processes ◽  
P Removal

Laboratory scale experiments were conducted to study the performance and characteristics of nitrogen (N) and phosphorus (P) removal of a sequencing batch moving bed biofilm reactor (SBMBBR) with simple anaerobic/aerobic operating mode. Experimental results indicated that, under the operating condition of influent N concentration of 114 mg/L and P concentration of 12 mg/L, N and P removal efficiency reached 95% and 94% respectively under the conditions of influent COD/N (C/N) ratio of 2.8 to 4.0. Track studies of N, P and other operating parameters demonstrated that N removal was accomplished by anoxic denitrification during the filling and mixing stage and simultaneous nitrification and denitrification (SND) process in aerobic stage, while removal of P was realized through conventional phosphorus removal and denitrifying phosphorus removal processes.

Modeling of the attached and suspended biomass fractions in a moving bed biofilm reactor

Chemosphere ◽  
2021 ◽  
Vol 275 ◽  
pp. 129937
Author(s):  
Alessandro di Biase ◽  
Maciej S. Kowalski ◽  
Tanner R. Devlin ◽  
Jan A. Oleszkiewicz
Keyword(s):  
Biofilm Reactor ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Suspended Biomass
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