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Articoli di riviste sul tema "Membrane bioreactor"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Nima, Nazari, Naseryar Mahdi, Bayat Alireza, et al. "CFD Modeling of Biofouling in Membrane Bioreactor (MBR) with COMSOL Multiphysics software." Chemistry Research Journal 2, no. 4 (2017): 91–97. https://doi.org/10.5281/zenodo.13954356.

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Today, membrane bioreactors have been used extensively in the water and wastewater treatment industry due to their proper function. Thus, the study on them seems to be necessary. In this research, a brief description of the membrane bioreactor and its application is first given, and then the various types of fouling in the membrane bioreactor (MBR) are investigated. Membrane bioreactors have been used to make tubular membranes. Tubular membranes are susceptible to fouling due to their shape. The most important membrane fouling agents in the membrane bioreactor are biological materials. Biologi

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2

Soumyadeep, Bhaduri, and Mazumder Debabrata. "Scope of aerobic and anaerobic membrane bioreactor in industrial wastewater treatment." Journal of Indian Chemical Society Vol. 97, No. 12b, Dec 2020 (2020): 2771–76. https://doi.org/10.5281/zenodo.5656205.

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Department of Civil Engineering, Indian Institute of Engineering Science and Technology (IIEST), Shibpur, Howrah-711 103, West Bengal, India <em>E-mail:</em> bhaduri.soumyadeep@gmail.com <em>Manuscript received online 07 December 2020, accepted 27 December 2020</em> The objective of this paper is to present the current status of membrane bioreactor in industrial wastewater treatment. Membrane bioreactor has been used in treating various type of industrial wastewater due to its advantages over conventional biological treatments. Membrane bioreactors are used in industries like textile, tannery,

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3

José Chimuca, Jacob Fortuna, Catarina Simone Andrade do Canto, José Tavares de Sousa, Valderi Duarte Leite, and Wilton Silva Lopes. "Anaerobic dynamic membrane bioreactor applied to wastewater treatment: a review." Afinidad. Journal of Chemical Engineering Theoretical and Applied Chemistry 80, no. 598 (2023): 19–34. http://dx.doi.org/10.55815/413319.

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Membrane bioreactors have been widely used in biological wastewater treatment. The membranes used in this type of technology are produced from organic or inorganic materials. However, membranes can also be formed from the deposition of solid particles, colloids, and polymeric materials, as well as microbial cells and flocs, on an inert support during the filtration process. When coupled to a bioreactor, they establish a unique system called a dynamic membrane bioreactor (DMBR). This type of bioreactor, while retaining the solids and microorganisms present in the system, removes both easy and d

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4

van Dijk, L., and G. C. G. Roncken. "Membrane bioreactors for wastewater treatment: the state of the art and new developments." Water Science and Technology 35, no. 10 (1997): 35–41. http://dx.doi.org/10.2166/wst.1997.0353.

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The combination of membrane separation technology and bioreactors has lead to a new focus on wastewater treatment. The application of membranes has led to very compact wastewater treatment systems with an excellent effluent quality. For concentrated wastewaters, like industrial streams and landfill leachate the membrane bioreactor has been applied at full scale successfully. The relatively high energy requirements have hindered the wide spread application of membrane bioreactors. Using new membrane techniques, like transfer flow modules, creates the possibilities of a more widespread applicati

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5

Mucha, Zbigniew, Włodzimierz Wójcik, and Michał Polus. "Brief review of operation of anaerobic wastewater treatment with membrane bioreactors." E3S Web of Conferences 86 (2019): 00020. http://dx.doi.org/10.1051/e3sconf/20198600020.

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In recent years, anaerobic membrane bioreactor (AnMBR) technology has been considered as a very appealing alternative for wastewater treatment due to its significant advantages over conventional anaerobic treatment and aerobic membrane bioreactor (MBR) technology. The paper provides an overview of the current status of the anaerobic membrane bioreactor technology with a special emphasis on its performance and drawbacks when applied for domestic and municipal wastewater treatment. According to the reported data, the renewable energy produced at the plants (i.e. from methane) covered the energy

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6

Choo, K.-H., I.-J. Kang, S.-H. Yoon, et al. "Approaches to membrane fouling control in anaerobic membrane bioreactors." Water Science and Technology 41, no. 10-11 (2000): 363–71. http://dx.doi.org/10.2166/wst.2000.0681.

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Various fouling control methods were investigated for polymeric and ceramic microfiltration membranes in the anaerobic membrane bioreactors where inorganic precipitates and/or fine colloids have been recently known as the most significant foulants: (i) Substantial improvement of flux was achieved by backfeeding of acidic wastewater through the membrane module. The backfeeding mode formed an acidic environment around the membrane pores and thus suppressed struvite formation. (ii) Struvite precipitation was also mitigated when an additional combined dialysis/zeolite unit was attached to the bior

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7

Lesage, N., M. Spérandio, and C. Cabassud. "Performances of a hybrid adsorption/submerged membrane biological process for toxic waste removal." Water Science and Technology 51, no. 6-7 (2005): 173–80. http://dx.doi.org/10.2166/wst.2005.0636.

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This study focuses on a hybrid process, which combines adsorption on powdered activated carbon (PAC), membrane separation using immersed hollow fibers and biological activity. The first part shows that PAC addition in a complex system (containing dissolved molecules and biological particles) can reduce membrane fouling. In that system, DMP removal is function of the activated carbon concentration. Then, respirometric experiments allowed comparison of toxic sensitivity and biological degradation of different bioreactors (membrane bioreactor (MBR), adsorptive membrane bioreactor (PAC-MBR) and cl

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8

Fatone, F., A. L. Eusebi, P. Battistoni, and P. Pavan. "Exploring the potential of membrane bioreactors to enhance metals removal from wastewater: pilot experiences." Water Science and Technology 57, no. 4 (2008): 505–11. http://dx.doi.org/10.2166/wst.2008.115.

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The potential of membrane bioreactors to enhance the removal of selected metals from low loaded sewages has been explored. A 1400 litre pilot plant, equipped with an industrial submerged module of hollow fibre membranes, has been used in three different configurations: membrane bioreactor, operating in sequencing batch modality, for the treatment of real mixed municipal/industrial wastewater; membrane-assisted biosorption reactor, for the treatment of real leachate from municipal landfills; continuously fed membrane bioreactor, for the treatment of water charged with cadmium and nickel ions. T

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9

Deng, Zhi Hua, Ping Ning, Cheng Zhou, Jian Hong Huang, and Kui Yang. "The Biotechnology for Odours-A Review." Advanced Materials Research 403-408 (November 2011): 1432–37. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1432.

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This article provides an overview about the microbes selecting, types of bioreactors, the treatment condition, etc. which influence the odors abatement effect. In the recent past, many highly efficiency microorganisms on the actual governance of malodorous gases have been selected and trained. Among different bioreactor configurations, biofilters, biotrickling filters and bioscrubbers are most common ones. The membrane bioreactor and the three phase fluidised bed bioreactor as new bioreactors have broad development prospects. Finally, this review also provides how to insights into future R&amp

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10

Endo, Isao. "A Membrane Bioreactor." membrane 21, no. 1 (1996): 18–22. http://dx.doi.org/10.5360/membrane.21.18.

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Świerczyńska, Anna, Jolanta Bohdziewicz, and Ewa Puszczało. "Treatment of industrial wastewater in the sequential membrane bioreactor." Ecological Chemistry and Engineering S 23, no. 2 (2016): 285–95. http://dx.doi.org/10.1515/eces-2016-0020.

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Abstract The aim of presented study which was associated with modification of the various work cycle phases duration in the membrane bioreactor, was to reduce the concentration of phosphate phosphorus during the leachate co-treatment with dairy wastewater. The experimental set-up was comprised of the membrane bioreactor equipped with the immersed membrane module installed inside the reactor chamber, and the equalization tank. During the co-treatment experiment performance the excessive activated sludge was constantly removed from the membrane bioreactor in order to keep its concentration at 3.

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Catapano, Gerardo, Juliane K. Unger, Elisabetta M. Zanetti, Gionata Fragomeni, and Jörg C. Gerlach. "Kinetic Analysis of Lidocaine Elimination by Pig Liver Cells Cultured in 3D Multi-Compartment Hollow Fiber Membrane Network Perfusion Bioreactors." Bioengineering 8, no. 8 (2021): 104. http://dx.doi.org/10.3390/bioengineering8080104.

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Liver cells cultured in 3D bioreactors is an interesting option for temporary extracorporeal liver support in the treatment of acute liver failure and for animal models for preclinical drug screening. Bioreactor capacity to eliminate drugs is generally used for assessing cell metabolic competence in different bioreactors or to scale-up bioreactor design and performance for clinical or preclinical applications. However, drug adsorption and physical transport often disguise the intrinsic drug biotransformation kinetics and cell metabolic state. In this study, we characterized the intrinsic kinet

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13

Helmi, Arash, and Fausto Gallucci. "Latest Developments in Membrane (Bio)Reactors." Processes 8, no. 10 (2020): 1239. http://dx.doi.org/10.3390/pr8101239.

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The integration of membranes inside a catalytic reactor is an intensification strategy to combine separation and reaction steps in one single physical unit. In this case, a selective removal or addition of a reactant or product will occur, which can circumvent thermodynamic equilibrium and drive the system performance towards a higher product selectivity. In the case of an inorganic membrane reactor, a membrane separation is coupled with a reaction system (e.g., steam reforming, autothermal reforming, etc.), while in a membrane bioreactor a biological treatment is combined with a separation th

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Makisha, Nikolay. "Research of filtration and energy parameters of membrane bioreactors." E3S Web of Conferences 180 (2020): 04001. http://dx.doi.org/10.1051/e3sconf/202018004001.

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Membrane bioreactors nowadays are intensively applied in wastewater treatment worldwide. The paper refers to a research, which goal was to evaluate the optimal parameters of membrane bioreactor performance. A focus was given to a part of the research that considered operation of side-stream membrane bioreactor under pressure of 0.2 MPa and variable amount of backwashes. There were three types of feed water investigated with mixed liquor suspended solids concentrations of 1.6, 2.5 and 7 g/L, respectively. The article provides results of permeate production and their processing to obtain specifi

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Gereka, Ainitze, Uzuri Urtaza, Pablo Larreategi, Felipe Prosper, Enrique José Andreu, and Ane Miren Zaldua. "A Bioreactor for Celullarised Membrane Culture and Delivery under Sterile Conditions." Bioengineering 11, no. 8 (2024): 785. http://dx.doi.org/10.3390/bioengineering11080785.

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A novel, user-friendly bioreactor for the cultivation of cellularised membranes for tissue engineering has been successfully designed, manufactured, and validated. This bioreactor features a culture vessel and a cover, the latter equipped with one or more sidewalls to ensure airtightness in two distinct zones, thereby maintaining sterile conditions. The cover, designed to integrate seamlessly with the culture vessel, includes several ports compatible with commercial connectors. This design allows the introduction of cells and culture medium without requiring the opening of the cover, thus pres

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Jin, Le, How Yong Ng, and Say Leong Ong. "Performance and fouling characteristics of different pore-sized submerged ceramic membrane bioreactors (SCMBR)." Water Science and Technology 59, no. 11 (2009): 2213–18. http://dx.doi.org/10.2166/wst.2009.256.

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The membrane bioreactor (MBR), a combination of activated sludge process and the membrane separation system, has been widely used in wastewater treatment. However, 90% of MBR reported were employing polymeric membranes. The usage of ceramic membranes in MBR is quite rare. Four submerged ceramic membrane bioreactors (SCMBRs) with different membrane pore size were used in this study to treat sewage. The results showed that the desirable carbonaceous removal of 95% and ammonia nitrogen removal of 98% were obtained for all the SCMBRs. It was also showed that the ceramic membranes were able to reje

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Leyva-Díaz, J. C., and J. M. Poyatos. "Start-up of membrane bioreactor and hybrid moving bed biofilm reactor–membrane bioreactor: kinetic study." Water Science and Technology 72, no. 11 (2015): 1948–53. http://dx.doi.org/10.2166/wst.2015.419.

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A hybrid moving bed biofilm reactor–membrane bioreactor (hybrid MBBR-MBR) system was studied as an alternative solution to conventional activated sludge processes and membrane bioreactors. This paper shows the results obtained from three laboratory-scale wastewater treatment plants working in parallel in the start-up and steady states. The first wastewater treatment plant was a MBR, the second one was a hybrid MBBR-MBR system containing carriers both in anoxic and aerobic zones of the bioreactor (hybrid MBBR-MBRa), and the last one was a hybrid MBBR-MBR system which contained carriers only in

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Henmi, Masahiro, and Tadahiro Uemura. "PVDF Membrane Module For Membrane Bioreactor." MEMBRANE 30, no. 5 (2005): 282–85. http://dx.doi.org/10.5360/membrane.30.282.

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Siddiqui, Nasbul, Chandani Lakhani, and S.Y. Bodkhe. "MEMBRANE BIOREACTOR FOULING: MECHANISMS, IMPACTS, AND CONTROL TECHNIQUES." International Journal on Environmental Sciences 16, no. 01 (2025): 01–10. https://doi.org/10.53390/ijes.2025.16101.

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Membrane bioreactor (MBR) technology has gained significant attention in the realm of wastewater treatment. Using membrane bioreactors in wastewater treatment provides numerous advantages, including high-quality effluent, space efficiency, higher treatment performance, flexibility, reduced sludge production, improved process control, and environmental benefits. Membrane fouling, on the other hand, continues to be a major issue, resulting in higher operational costs, a shorter membrane lifespan, and frequent maintenance requirements. Fouling is produced by deposits of suspended particles, collo

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20

Qiao, Bo Bo, Rui Tian, Chun Li Li, Rui Fang Li, Xue Qing Dong, and Jia Long Wen. "Study on the Flow Field in Membrane Bioreactor Research by Using PIV." Advanced Materials Research 516-517 (May 2012): 1078–81. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.1078.

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Membrane bioreactor flow field distribution directly affect effective control of the membrane pollution,and affect the membrane flux greatly. The experiments of membrane bioreactor liquid are measured by using PIV that the measurement areas include membrane bioreactor upper, middle and lower. The experimental data obtained velocity field information through the PIV software analysis. The experimental result indicates that middle of the membrane bioreactor flow field is the most unstable. The experimental measurement result provide membrane bioreactor structure the optimized design, effective c

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21

Vlaev, Serafim Dimitrov, Iren Tsibranska, Daniela Dzhonova-Atanasova, and Roman Popov. "Structural Anomalies in Stirred Submerged Bioreactors Relevant to Immersed Membrane Use." Food Science and Applied Biotechnology 1, no. 1 (2018): 56. http://dx.doi.org/10.30721/fsab2018.v1.i1.12.

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Separation of value-added food additives is often practiced by micro and ultrafiltration membranes in integrated submerged membrane bioreactors (sMBR) and the flow conditions are of major importance for their performance. The immersed membranes affect fluid circulation and may cause operational difficulties. Such malfunction termed flow structural deterioration of integrated vessels is addressed in this study, based on the effect of the (1) non-Newtonian component presence, and the (2) gas flow rate. Ranges of input parameters referring to power law non-Newtonian fluids with consistency coeffi

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Wang, Le Jun, Wei Wang, Rui Qu, Teng Teng Qi, Yu Feng Zhang, and Bo Wen Cheng. "Study of Forward Osmosis Membrane Bioreactor." Advanced Materials Research 904 (March 2014): 78–80. http://dx.doi.org/10.4028/www.scientific.net/amr.904.78.

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A novel submerged forward osmosis membrane bioreactor (FOMBR) is presented in this study. The selection of optical draw solutions for forward osmosis (FO) applications was developed and the Na2SO4 solution was found to be the most appropriate draw solution among five draw solutions for FO applications. The properties of two hollow fiber composite FO membranes, designated membranes A and B, which consist of an active layer formed atop a support layer, were prepared and utilized. Meanwhile, the water flux and removal efficiencies were evaluated in FO mode. Both of the FO membranes were found to

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Wu, Y., X. Huang, X. Wen, and F. Chen. "Function of dynamic membrane in self-forming dynamic membrane coupled bioreactor." Water Science and Technology 51, no. 6-7 (2005): 107–14. http://dx.doi.org/10.2166/wst.2005.0628.

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The Self-Forming Dynamic Membrane Coupled Bioreactor (SFDMBR), which uses coarse pore-sized material to separate solid and liquid in bioreactors, has some advantages compared with MBR using micro-/ultra-filtration membranes, for example, low module cost and high flux. The cake layer and gel layer formed on the surface and in the pores of the material during filtration played an important role, called self-forming dynamic membrane (DM), which mainly consisted of activated sludge. In this study, the function of DM in pollutant removal was investigated. It was found that DM could remove some orga

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Prattakorn Sittisom, Obey Gotore, Rameshprabu Ramaraj, Giang Tran Van, Yuwalee Unpaprom, and Tomoaki Itayama. "Membrane fouling issues in anaerobic membrane bioreactors (AnMBRs) for biogas production." Maejo International Journal of Energy and Environmental Communication 1, no. 2 (2019): 15–19. http://dx.doi.org/10.54279/mijeec.v1i2.244911.

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Anaerobic Membrane Bioreactor (AnMBR) technology in recent years has been actively used for municipal and industrial wastewater treatment. Also, AnMBR technology has been considered as an alternative wastewater treatment application over conventional activated sludge system. AnMBRs are best possible operated with flat sheet, hollow fiber, or tubular membranes both in the microfiltration or in the ultrafiltration, but on ceramic membrane use has not been reported widely. AnMBRs are a desirable technology that needs additional research efforts and development. However, membrane fouling, which co

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Ohkuma, Naoki. "Membrane Bioreactor For Wastewater Treatment." membrane 26, no. 5 (2001): 207–15. http://dx.doi.org/10.5360/membrane.26.207.

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Burton, Stephanie G. "Development of bioreactors for application of biocatalysts in biotransformations and bioremediation." Pure and Applied Chemistry 73, no. 1 (2001): 77–83. http://dx.doi.org/10.1351/pac200173010077.

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Biotransformation systems, whether used for environmentally benign biocatalysis of synthetic reactions, or bioremediation of pollutants, require suitable biocatalysts and suitable bioreactor systems with particular characteristics. Our research focuses on the bioconversion of organic compounds, many of which are industrial residues, such as phenols, poly-aromatic hydrocarbons, heterocyclic compounds, and polychlorinated biphenyls. The purpose of such biotransformations can be twofold: firstly, to remove them from effluents and convert them to less toxic forms, and secondly, to convert them int

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Juang, Yu-Chuan, Ay Su, Li-Hsing Fang, Duu-Jong Lee, and Juin-Yih Lai. "Fouling with aerobic granule membrane bioreactor." Water Science and Technology 64, no. 9 (2011): 1870–75. http://dx.doi.org/10.2166/wst.2011.139.

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Aerobic granulation (AG) and membrane bioreactor (MBR) are two promising, novel environmental biotechnological processes that draw interest of researchers working in the area of biological wastewater treatment. Membrane fouling in the combined aerobic granular membrane bioreactor (AGMBR) process and the conventional MBR process was investigated in this work. The irreversible fouling on hollow-fibre membranes in both reactors were observed with the multiple staining and confocal laser scanning microscope technique. Following physical and chemical washing, the external fouling layers were mostly

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Zhou, Yingge, Shahrima Maharubin, Phat Tran, Ted Reid, and George Z. Tan. "Anti-biofilm AgNP-polyaniline-polysulfone composite membrane activated by low intensity direct/alternating current." Environmental Science: Water Research & Technology 4, no. 10 (2018): 1511–21. http://dx.doi.org/10.1039/c8ew00259b.

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Wintgens, T., M. Gallenkemper, and T. Melin. "Removal of endocrine disrupting compounds with membrane processes in wastewater treatment and reuse." Water Science and Technology 50, no. 5 (2004): 1–8. http://dx.doi.org/10.2166/wst.2004.0301.

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Endocrine disrupting compounds can affect the hormone system in organisms and are the subject of environmental and human health concerns. The effluents of wastewater treatment plants contribute to the emission of estrogenically active substances into the environment. Membrane technology, which is an advanced wastewater treatment option, is the subject of this research. The removal techniques under investigation are membrane bioreactors, reverse osmosis, and nanofiltration. Eleven different nanofiltration membranes were tested in the laboratory set-up. The observed retention of NP and BPA range

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Adriani, L., B. Trisakti, I. Irvan, et al. "Design and fabrication of UASB-HCPB reactor assisted UF membrane for POME treatment to produce biogas." IOP Conference Series: Earth and Environmental Science 1352, no. 1 (2024): 012036. http://dx.doi.org/10.1088/1755-1315/1352/1/012036.

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Abstract Anaerobic process is one of the biological wastewater treatment to produce biogas as renewable energy. Sludge is produced as the main characteristic of UASB (Up-flow Anaerobic Sludge Blanket) which distinguishes it from other anaerobic technologies to produce biogas. A new design of UASB-HCPB (Up-flow Anaerobic Sludge Blanket - Hollow Centered Packed Bed) is used to overcome operational problems in UASB. This research has designed, manufactured, and installed a UASB-HCPB bioreactor with a heating system. UASB-HCPB was designed and fabricated with acrylic material and caldnes used for

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Li, Chengyue, Tahir Maqbool, Hongyu Kang, and Zhenghua Zhang. "In-Situ Sludge Reduction in Membrane-Controlled Anoxic-Oxic-Anoxic Bioreactor: Performance and Mechanism." Membranes 12, no. 7 (2022): 659. http://dx.doi.org/10.3390/membranes12070659.

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Conventional and advanced biological wastewater treatment systems generate excess sludge, which causes socio-economic and environmental issues. This study investigated the performance of membrane-controlled anoxic-oxic-anoxic (AOA) bioreactors for in-situ sludge reduction compared to the conventional anoxic-oxic-oxic membrane bioreactor (MBRcontrol). The membrane units in the AOA bioreactors were operated as anoxic reactors at lower sludge recirculation rates to achieve hydrolysis of extracellular polymeric substances (EPS) and extensive endogenous respiration. Compared to MBRcontrol, the AOA

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Pathak, Nirenkumar, Van Huy Tran, Andrea Merenda, M. A. H. Johir, Sherub Phuntsho, and Hokyong Shon. "Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors." Applied Sciences 10, no. 8 (2020): 2969. http://dx.doi.org/10.3390/app10082969.

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The ubiquitous presence of organic micropollutants (OMPs) in the environment as a result of continuous discharge from wastewater treatment plants (WWTPs) into water matrices—even at trace concentrations (ng/L)—is of great concern, both in the public and environmental health domains. This fact essentially warrants developing and implementing energy-efficient, economical, sustainable and easy to handle technologies to meet stringent legislative requirements. Membrane-based processes—both stand-alone or integration of membrane processes—are an attractive option for the removal of OMPs because of

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Trukhina, M. G., and N. D. Pelmeneva. "Membrane bioreactors: foreign experience." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 12, no. 2 (2022): 224–31. http://dx.doi.org/10.21285/2227-2917-2022-2-224-231.

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This article addresses advanced methods of wastewater treatment, which presents an urgent global problem. The use of membranes or so-called membrane bioreactors (MBR) at treatment facilities comprises an efficient method of wastewater treatment. The characteristics of membrane designs along with their practical advantages and disadvantages are considered. Examples of using MBR at wastewater treatment plants in Germany, Italy and Sweden are examined. A recently developed MBR technology based on filtration through micro- or ultrafiltration membranes is gaining in popularity. In such technologies

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Lombardi, C. P., A. Urso, G. Catapano, et al. "Membrane Bioreactors as Hybrid Artificial Pancreas: Experimental Evaluation." International Journal of Artificial Organs 15, no. 2 (1992): 126–30. http://dx.doi.org/10.1177/039139889201500212.

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Results of cultured islet transplantation in the management of insulin-dependent diabetes are still unsatisfactory. The main problem preventing success is the swift and resolute host immune rejection. To obviate this we designed and experimented a model of bioartificial pancreas, made of polymeric hollow fibers, put into the blood circulation as an artero-venous bypass to immunoisolate endocrine tissue from leucocytes and immunoglobulins. We tested four different membrane bioreactors (BR1-4). BR1 and 2 had seven hollow fibers, the others more than 6,000 smaller fibers. In BR4 a connecting tube

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Cuevas-Rodríguez, G., P. Cervantes-Avilés, I. Torres-Chávez, and A. Bernal-Martínez. "Evaluation of different configurations of hybrid membrane bioreactors for treatment of domestic wastewater." Water Science and Technology 71, no. 3 (2014): 338–46. http://dx.doi.org/10.2166/wst.2014.481.

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Four membrane bioreactors (MBRs) with the same dimensions were studied for 180 days: three hybrid growth membrane bioreactors with biofilm attached in different packing media and a conventional MBR (C-MBR). The four MBRs had an identical membrane module of hollow fiber with a nominal porous diameter of 0.4 μm. The MBRs were: (1) a C-MBR; (2) a moving bed membrane bioreactor (MB-MBR), which was packed with 2 L of carrier Kaldnes-K1, presenting an exposed surface area of 678.90 m2/m3; (3) a non-submerged organic fixed bed (OFB-MBR) packed with 6.5 L of organic packing media composed of a mixture

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Tacke, D., J. Pinnekamp, H. Prieske, and M. Kraume. "Membrane bioreactor aeration: investigation of the velocity flow pattern." Water Science and Technology 57, no. 4 (2008): 559–65. http://dx.doi.org/10.2166/wst.2008.123.

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Abstract (sommario):

Results of investigations concerning membrane bioreactor aeration are presented which were carried out at the Institute of Environmental Engineering of RWTH Aachen University (ISA) in cooperation with the Department of Chemical Engineering of the Technische Universität Berlin. In the field of industrial and municipal wastewater treatment the use of membrane bioreactors (MBR) is of increasing interest especially due to the high requirements on effluent quality nowadays. The design of aeration systems is a very important aspect of MBR development because it influences both cost of operation and

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37

Duan, Liang, Yong Hui Song, Wei Jiang, and Slawomir W. Hermanowicz. "The Effect of Media Fill Ratio on Membrane Fouling in Moving Bed Bioreactors-Membrane Bioreactor." Advanced Materials Research 726-731 (August 2013): 470–73. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.470.

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This research investigated the effect of media fill ratio on membrane fouling in moving bed bioreactors-membrane bioreactor. The results shown the high removal of ammonia and COD, despite the membrane fouling conditions were really different in two bioreactors. The total modified fouling index (MFI) of IFAS 3000 was three times than MFI of IFAS 1500, and the soluble microbial products (SMP) present in the mixed liquor played an important role in the membrane fouling. No more correlation was found between the extracellular polymeric substances (EPS) concentration and fouling, and the average SM

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38

Ayyaru, Sivasankaran, Jeongdong Choi, and Young-Ho Ahn. "Biofouling reduction in a MBR by the application of a lytic phage on a modified nanocomposite membrane." Environmental Science: Water Research & Technology 4, no. 10 (2018): 1624–38. http://dx.doi.org/10.1039/c8ew00316e.

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39

Kuyukina, Maria S., Anastasiya V. Krivoruchko, and Irena B. Ivshina. "Advanced Bioreactor Treatments of Hydrocarbon-Containing Wastewater." Applied Sciences 10, no. 3 (2020): 831. http://dx.doi.org/10.3390/app10030831.

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Abstract (sommario):

This review discusses bioreactor-based methods for industrial hydrocarbon-containing wastewater treatment using different (e.g., stirred-tank, membrane, packed-bed and fluidized-bed) constructions. Aerobic, anaerobic and hybrid bioreactors are becoming increasingly popular in the field of oily wastewater treatment, while high concentrations of petroleum hydrocarbons usually require physico-chemical pre-treatments. Most efficient bioreactor techniques employ immobilized cultures of hydrocarbon-oxidizing microorganisms, either defined consortia or mixed natural populations. Some advantages of fl

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40

Xie, Y. H., T. Zhu, C. H. Xu, T. Nozaki, and K. Furukawa. "Treatment of domestic sewage by a metal membrane bioreactor." Water Science and Technology 65, no. 6 (2012): 1102–8. http://dx.doi.org/10.2166/wst.2012.422.

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Abstract (sommario):

A submerged flat metal MBR (membrane bioreactor) was used to treat synthetic domestic sewage in this study. The experiment was continued for 270 days and ran under two modes as AMBR (aerobic membrane bioreactor) and A/O-MBR (anoxic/aerobic membrane bioreactor) at a permeate flux of 0.4–1 m3/(m2 d). PVA (polyvinyl alcohol) gel beads were added to the aeration tank with a volume ratio of 10% at the end of the A/O-MBR mode. The mean COD and TN removal efficiencies achieved 96.69 and 32.12% under the AMBR mode, and those were 92.17 and 72.44% under the A/O-MBR mode, respectively. SND (simultaneous

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41

Rezania, B., N. Cicek, and J. A. Oleszkiewicz. "Quantifying inorganic fouling in a membrane bioreactor treating nitrate-contaminated groundwater using hydrogen as energy source." Water Supply 6, no. 3 (2006): 115–21. http://dx.doi.org/10.2166/ws.2006.750.

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A hydrogenotrophic denitrification system, which consisted of a sequencing batch membrane bioreactor, was evaluated for removal of nitrate from a synthetic groundwater feed. A hollow fiber microporous membrane diffuser was used for bubble-less diffusion of hydrogen into the bioreactor, and a membrane filter was used for separating the biomass from treated water. The nitrate loading of 0.328 kg N m−3 d−1 was completely denitrified to below detectable levels; however, inorganic fouling of both membrane filter and diffuser occurred. The increase in pH during denitrification caused inorganic preci

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42

Liu, Shuo, Yan Ping Liu, Bao Zhen Wang, and Ji Fu Wang. "Effect of Modified Diatomite Addition on Sludge Properties for Membrane Fouling Alleviation in Submerged Membrane Bioreactor." Advanced Materials Research 233-235 (May 2011): 680–83. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.680.

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Abstract (sommario):

To alleviate the membrane fouling in membrane bioreactor, a kind of modified diatomite was used as anti-fouling agent to examine the effect on sludge properties in submerged membrane bioreactor for synthetic domestic wastewater treatment. Three submerged membrane bioreactor setups were operated under fixed membrane flux 21.9m3/m2·h, meanwhile, modified diatomite was added into each membrane bioreactor with dosage of 0mg/L, 1000mg/L and 2000mg/L respectively. Sludge particle size, extracellular polymeric substances and molecular weight distribution were characterized as the activated sludge pro

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43

Batrinescu, Gheorghe, Dana Garganciuc, Ovidiu Popa, and Mihaela Olteanu. "Kinetic Study of Maltodextrine Saccharification Process using Amyloglucosidase Covalently Immobilised." Revista de Chimie 59, no. 1 (2008): 30–32. http://dx.doi.org/10.37358/rc.08.1.1700.

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Abstract (sommario):

The membranes with immobilized enzymes have a double role, as a separation barrier and a biocatalyst. The membranes immobilize the enzymes in insoluble state by direct binding (e.g. covalent binding) or in soluble state, by adsorption at the separation surface, depending on the polymer nature and the membrane structure. The researches purpose was to emphasize the biocatalytic activity of a membrane-immobilized enzyme system. This paper relates the original results from the kinetic study of maltodextrine saccharification process. The dextrines are obtained by enzymatic hydrolise of starch with

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44

Low, S. C., K. T. Cheong, and H. L. Lim. "A vibration membrane bioreactor." Desalination and Water Treatment 5, no. 1-3 (2009): 42–47. http://dx.doi.org/10.5004/dwt.2009.563.

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45

Ramesh, A., D. J. Lee, M. L. Wang, et al. "Biofouling in Membrane Bioreactor." Separation Science and Technology 41, no. 7 (2006): 1345–70. http://dx.doi.org/10.1080/01496390600633782.

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46

D'ilario, Lucio, and Maurizio M. Steffan. "A ‘composite membrane’ bioreactor." Journal of Molecular Catalysis 52, no. 2 (1989): 229–39. http://dx.doi.org/10.1016/0304-5102(89)80025-2.

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47

D'ilario, Lucio, and Maurizio M. Steffan. "A composite membrane bioreactor." Journal of Molecular Catalysis 53, no. 1 (1989): 1–7. http://dx.doi.org/10.1016/0304-5102(89)85023-0.

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48

Zhang, Han-Min, Jing-Ni Xiao, Ying-Jun Cheng, Li-Fen Liu, Xing-Wen Zhang, and Feng-Lin Yang. "Comparison between a sequencing batch membrane bioreactor and a conventional membrane bioreactor." Process Biochemistry 41, no. 1 (2006): 87–95. http://dx.doi.org/10.1016/j.procbio.2005.03.072.

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49

Song, Lin, Jiang Wenju, Tang Qiong, and Li Yaozhong. "Impact of a metabolic uncoupler, 2,4-dichlorophenol on minimization of activated sludge production in membrane bioreactor." Water Science and Technology 62, no. 6 (2010): 1379–85. http://dx.doi.org/10.2166/wst.2010.313.

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Abstract (sommario):

This study investigated the effects of 2,4-dichlorophenol on reduction of activated sludge in membrane bioreactors. Significant inhibition on sludge growth and slight reduction in COD removal were observed at higher 2,4-dichlorophenol dosages. The deviation between relative specific COD removal rate (q/q0) and relative specific growth rate (μ/μ0) suggested that a minimum 2,4-dichlorophenol concentration was required for uncoupling of anabolism and catabolism. With the increase of the dosage of 2,4-dichlorophenol, stepwise improvement of biomass bioactivity and the reduction in activated sludge

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50

Isma M. I., Aida, Munira Mohammad, Putri Razreena Abdul Razak, Hazmin Mansor, A. Idris, and Siti Baizura M. "Surface morphology of biofouling in membrane bioreactor treating actual sewage." Journal of Biological Studies 5, no. 3 (2022): 353–62. http://dx.doi.org/10.62400/jbs.v5i3.7041.

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Abstract (sommario):

Biofouling is the most challenging operational problem in membrane bioreactors. The goal of this study is to evaluate the foulants mechanism by profiling the foulants morphology in a membrane bioreactor treating actual sewage. A 10 m2 hollow fiber membrane was set up at MLSS of 9 g/L and HRT of 8 hours. CLSM and FESEM were used to characterize the membrane morphologies. The trans-membrane pressure was monitored, and membrane samples were analysed on weekly basis. The performance of the membrane bioreactor treating the actual sewage showed a remarkable result. The biofilm and cake layer formati

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