LAPSE:2019.0858
Published Article
LAPSE:2019.0858
Modeling of Wastewater Treatment Processes in Membrane Bioreactors Compared to Conventional Activated Sludge Systems
Marta Bis, Agnieszka Montusiewicz, Adam Piotrowicz, Grzegorz Łagód
July 31, 2019
Membrane techniques constitute an interesting alternative to conventional activated sludge systems (CAS). In membrane bioreactors (MBR), the biomass separated on membranes is retained independently of sludge sedimentation properties. As a consequence, a high biomass concentration as well as low food to microorganisms ratio can be obtained. Moreover, the development of a characteristic activated sludge population is stimulated by the specific conditions prevailing in MBRs. In the study, the operation and treatment efficiency of the MBR and CAS processes were examined and compared. Simulation was performed with the use of GPS-X software. The effluent quality obtained for the MBR system was either better or comparable to that of CAS. The most significant difference concerned the elimination of total suspended solids, which amounted to 99.8% in the MBR. Regarding nutrients, a low concentration of total phosphorus in the effluent from CAS and MBR was obtained (0.67 gP m−3 and 0.50 gP m−3, respectively). Greater differences were achieved in the case of total nitrogen. Although almost complete nitrification took place in both systems, a lower concentration of nitrate in the effluent from MBR in comparison to CAS, i.e., 11.2 gN m−3 and 14.1 gN m−3, respectively, allowed us to obtain a higher removal of total nitrogen (80.8% and 76.1%, respectively).
Keywords
activated sludge, computer simulation, membrane techniques, wastewater treatment processes
Suggested Citation
Bis M, Montusiewicz A, Piotrowicz A, Łagód G. Modeling of Wastewater Treatment Processes in Membrane Bioreactors Compared to Conventional Activated Sludge Systems. (2019). LAPSE:2019.0858
Author Affiliations
Bis M: Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland
Montusiewicz A: Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland
Piotrowicz A: Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland
Łagód G: Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland [ORCID]
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Journal Name
Processes
Volume
7
Issue
5
Article Number
E285
Year
2019
Publication Date
2019-05-14
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr7050285, Publication Type: Journal Article
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LAPSE:2019.0858
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doi:10.3390/pr7050285
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Jul 31, 2019
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CC BY 4.0
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Calvin Tsay
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