Modelling and simulation of energy-saving potential of Sequential Batch Reactor (SBR) in the abatement of ammoniacal-nitrogen and organics
The ammonical nitrogen removal in discharged effluents from a typical sewerage treatment plant has not been consistent with the stringent discharge standards. There is the need to optimize the energy consumption as well as improve the ammonical nitrogen removal in the treatment plant. This study...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Journal of Pure and Applied Microbiology
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/38343/1/SBR_Modelling.pdf http://irep.iium.edu.my/38343/3/38343_Modelling%20and%20simulation%20of%20energy-saving.SCOPUS.pdf http://irep.iium.edu.my/38343/ http://www.microbiologyjournal.org/jmabsread.php?snoid=1885&month=&year= |
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| Summary: | The ammonical nitrogen removal in discharged effluents from a typical sewerage
treatment plant has not been consistent with the stringent discharge standards. There is
the need to optimize the energy consumption as well as improve the ammonical nitrogen
removal in the treatment plant. This study reports the investigation of the behaviour of
process dynamicity of ammoniacalnitrogen (NH3-N) removal in a Sequencing Batch Reactor
(SBR) through Activated Sludge Model No.1 (ASM1) and standard SBR design computation
for optimal aeration time, while meeting the treatment requirements. Thestudy further
evaluates the performance of NH3-N removal based on the data obtained from an existing
SBR system. The time profile of process dynamics and the minimum required aeration
time with maximum nitrogen removal was studied while taking into account the system’s
energy consumption. Moreover, the simulation results by MATLAB Software suggested
that the process dynamicity of the carbon and NH3-N concentration is 7 hour batch time
with one fill and 1.5 hours aeration time. For computation of SBR standard design, the
reduction from current 1.5 hours to 1.35 hours of aeration for 80% to 93% of NH3-N
removal brought about the total energy saving of up to 10 percent. |
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