Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment

A large amount of wastewater is directly discharged into water bodies without treatment, causing surface water contamination. A rotating biological contactor (RBC) is an attached biological wastewater treatment process that offers a low energy footprint. However, its unstable removal efficiency make...

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Main Authors: Waqas, S., Harun, N.Y., Bilad, M.R., Samsuri, T., Md Nordin, N.A.H., Shamsuddin, N., Nandiyanto, A.B.D., Huda, N., Roslan, J.
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Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.28809 /
Published: MDPI 2022
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125625418&doi=10.3390%2fmembranes12030271&partnerID=40&md5=d0131b1070553b5eddd181cbeec92609
http://eprints.utp.edu.my/28809/
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spelling utp-eprints.288092022-03-17T02:44:40Z Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment Waqas, S. Harun, N.Y. Bilad, M.R. Samsuri, T. Md Nordin, N.A.H. Shamsuddin, N. Nandiyanto, A.B.D. Huda, N. Roslan, J. A large amount of wastewater is directly discharged into water bodies without treatment, causing surface water contamination. A rotating biological contactor (RBC) is an attached biological wastewater treatment process that offers a low energy footprint. However, its unstable removal efficiency makes it less popular. This study optimized operating parameters in RBC combined with external membrane filtration (RBC-ME), in which the latter acted as a post-treatment step to stabilize the biological performance. Response surface methodology (RSM) was employed to optimize the biological and filtration performance by exploiting three parameters, namely disk rotation, hydraulic retention time (HRT), and sludge retention time (SRT). Results show that the RBC-ME exhibited superior biological treatment capacity and higher effluent quality compared to stand-alone RBC. It attained 87.9 ± 3.2 of chemical oxygen demand, 45.2 ± 0.7 total nitrogen, 97.9 ± 0.1 turbidity, and 98.9 ± 1.1 ammonia removals. The RSM showed a good agreement between the model and the experimental data. The maximum permeability of 144.6 L/m2 h bar could be achieved under the optimum parameters of 36.1 rpm disk rotation, 18 h HRT, and 14.9 d SRT. This work demonstrated the effective use of statistical modeling to enhance RBC-ME system performance to obtain a sustainable and energy-efficient condition. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. MDPI 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125625418&doi=10.3390%2fmembranes12030271&partnerID=40&md5=d0131b1070553b5eddd181cbeec92609 Waqas, S. and Harun, N.Y. and Bilad, M.R. and Samsuri, T. and Md Nordin, N.A.H. and Shamsuddin, N. and Nandiyanto, A.B.D. and Huda, N. and Roslan, J. (2022) Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment. Membranes, 12 (3). http://eprints.utp.edu.my/28809/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description A large amount of wastewater is directly discharged into water bodies without treatment, causing surface water contamination. A rotating biological contactor (RBC) is an attached biological wastewater treatment process that offers a low energy footprint. However, its unstable removal efficiency makes it less popular. This study optimized operating parameters in RBC combined with external membrane filtration (RBC-ME), in which the latter acted as a post-treatment step to stabilize the biological performance. Response surface methodology (RSM) was employed to optimize the biological and filtration performance by exploiting three parameters, namely disk rotation, hydraulic retention time (HRT), and sludge retention time (SRT). Results show that the RBC-ME exhibited superior biological treatment capacity and higher effluent quality compared to stand-alone RBC. It attained 87.9 ± 3.2 of chemical oxygen demand, 45.2 ± 0.7 total nitrogen, 97.9 ± 0.1 turbidity, and 98.9 ± 1.1 ammonia removals. The RSM showed a good agreement between the model and the experimental data. The maximum permeability of 144.6 L/m2 h bar could be achieved under the optimum parameters of 36.1 rpm disk rotation, 18 h HRT, and 14.9 d SRT. This work demonstrated the effective use of statistical modeling to enhance RBC-ME system performance to obtain a sustainable and energy-efficient condition. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Waqas, S.
Harun, N.Y.
Bilad, M.R.
Samsuri, T.
Md Nordin, N.A.H.
Shamsuddin, N.
Nandiyanto, A.B.D.
Huda, N.
Roslan, J.
spellingShingle Waqas, S.
Harun, N.Y.
Bilad, M.R.
Samsuri, T.
Md Nordin, N.A.H.
Shamsuddin, N.
Nandiyanto, A.B.D.
Huda, N.
Roslan, J.
Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
author_sort Waqas, S.
title Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
title_short Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
title_full Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
title_fullStr Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
title_full_unstemmed Response Surface Methodology for Optimization of Rotating Biological Contactor Combined with External Membrane Filtration for Wastewater Treatment
title_sort response surface methodology for optimization of rotating biological contactor combined with external membrane filtration for wastewater treatment
publisher MDPI
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125625418&doi=10.3390%2fmembranes12030271&partnerID=40&md5=d0131b1070553b5eddd181cbeec92609
http://eprints.utp.edu.my/28809/
_version_ 1741197155838722048
score 11.62408

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