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Vu DH, Mahboubi A, Root A, Heinmaa I, Taherzadeh MJ, Åkesson D. Application of Immersed Membrane Bioreactor for Semi-Continuous Production of Polyhydroxyalkanoates from Organic Waste-Based Volatile Fatty Acids. MEMBRANES 2023; 13:569. [PMID: 37367773 DOI: 10.3390/membranes13060569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
Volatile fatty acids (VFAs) appear to be an economical carbon feedstock for the cost-effective production of polyhydroxyalkanoates (PHAs). The use of VFAs, however, could impose a drawback of substrate inhibition at high concentrations, resulting in low microbial PHA productivity in batch cultivations. In this regard, retaining high cell density using immersed membrane bioreactor (iMBR) in a (semi-) continuous process could enhance production yields. In this study, an iMBR with a flat-sheet membrane was applied for semi-continuous cultivation and recovery of Cupriavidus necator in a bench-scale bioreactor using VFAs as the sole carbon source. The cultivation was prolonged up to 128 h under an interval feed of 5 g/L VFAs at a dilution rate of 0.15 (d-1), yielding a maximum biomass and PHA production of 6.6 and 2.8 g/L, respectively. Potato liquor and apple pomace-based VFAs with a total concentration of 8.8 g/L were also successfully used in the iMBR, rendering the highest PHA content of 1.3 g/L after 128 h of cultivation. The PHAs obtained from both synthetic and real VFA effluents were affirmed to be poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with a crystallinity degree of 23.8 and 9.6%, respectively. The application of iMBR could open an opportunity for semi-continuous production of PHA, increasing the feasibility of upscaling PHA production using waste-based VFAs.
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Affiliation(s)
- Danh H Vu
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - Amir Mahboubi
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - Andrew Root
- MagSol, Tuhkanummenkuja 2, 00970 Helsinki, Finland
| | - Ivo Heinmaa
- National Institute of Chemical Physics and Biophysics, 12618 Tallinn, Estonia
| | | | - Dan Åkesson
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
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2
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Wang Y, Ma B, Ulbricht M, Dong Y, Zhao X. Progress in alumina ceramic membranes for water purification: Status and prospects. WATER RESEARCH 2022; 226:119173. [PMID: 36252299 DOI: 10.1016/j.watres.2022.119173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/25/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Ceramic membranes have gained increasing attention in recent years for the removal of various contaminants from water. Alumina membrane is considered as one of the most important ceramic membranes, which plays important roles not only in separation processes such as microfiltration, ultrafiltration, and nanofiltration, but also in catalysis- and adsorption- enhanced separation applications in water purification and wastewater treatment. However, there is currently still lack of a comprehensive critical review about alumina membranes for water purification. In this review, we first discuss recent developments of alumina membranes, and then critically introduce the state-of-the-art strategies for lowering fabrication cost, improving membrane performances and mitigating membrane fouling. Especially, aiming to improve membrane performance, some emerging methods are summarized such as tailoring membrane structure, developing flexible membranes, designing nano-pores for precise separation, and enhancing multi-functionalities. In addition, engineering applications of alumina membranes for water purification are also briefly introduced. Finally, the prospects for future research on alumina membranes are proposed, such as economic preparation/application, challenging precise separation, enriching multi-functionalities, and clarifying separation mechanisms.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Baiwen Ma
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Duisburg-Essen Department of Technical Chemistry II, Essen 45117, Germany
| | - Mathias Ulbricht
- University of Duisburg-Essen Department of Technical Chemistry II, Essen 45117, Germany
| | - Yingchao Dong
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
| | - Xu Zhao
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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3
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Tsibranska I, Vlaev S, Dzhonova D, Tylkowski B, Panyovska S, Dermendzhieva N. Modeling and assessment of the transfer effectiveness in integrated bioreactor with membrane separation. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2020-0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Integrating a reaction process with membrane separation allows for effective product removal, favorable shifting of the reaction equilibrium, overcoming eventual inhibitory or toxic effects of the products and has the advantage of being energy and space saving. It has found a range of applications in innovative biotechnologies, generating value-added products (exopolysaccharides, antioxidants, carboxylic acids) with high potential for separation/ concentration of thermosensitive bioactive compounds, preserving their biological activity and reducing the amount of solvents and the energy for solvent recovery. Evaluating the effectiveness of such integrated systems is based on fluid dynamics and mass transfer knowledge of flowing matter close to the membrane surface – shear deformation rates and shear stress at the membrane interface, mass transfer coefficients. A Computational Fluid Dynamics (CFD)-based approach for assessing the effectiveness of integrated stirred tank bioreactor with submerged membrane module is compiled. It is related to the hydrodynamic optimization of the selected reactor configuration in two-phase flow, as well as to the concentration profiles and analysis of the reactor conditions in terms of reaction kinetics and mass transfer.
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Affiliation(s)
- Irene Tsibranska
- Institute of Chemical Engineering , Bulgarian Academy of Sciences , 1113 Sofia , Bulgaria
| | - Serafim Vlaev
- Institute of Chemical Engineering , Bulgarian Academy of Sciences , 1113 Sofia , Bulgaria
| | - Daniela Dzhonova
- Institute of Chemical Engineering , Bulgarian Academy of Sciences , 1113 Sofia , Bulgaria
| | - Bartosz Tylkowski
- Eurecat, Centre Tecnològic de Catalunya , C/Marcellí Domingo s/n , 43007 Tarragona , Spain
| | - Stela Panyovska
- Institute of Chemical Engineering , Bulgarian Academy of Sciences , 1113 Sofia , Bulgaria
| | - Nadezhda Dermendzhieva
- Institute of Chemical Engineering , Bulgarian Academy of Sciences , 1113 Sofia , Bulgaria
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4
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Hui Y, Feng X, Wang H, Mao ZS, Yang C. Effects on the Performance of Filtration in a Constant-Pressure Stirred Membrane Reactor. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Hui
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Feng
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haoliang Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zai-Sha Mao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Chao Yang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Robust nonlinear model predictive control of cascade of fermenters with recycle for efficient bioethanol production. Comput Chem Eng 2022. [DOI: 10.1016/j.compchemeng.2022.107735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Akkoyunlu B, Daly S, Casey E. Membrane bioreactors for the production of value-added products: Recent developments, challenges and perspectives. BIORESOURCE TECHNOLOGY 2021; 341:125793. [PMID: 34450442 DOI: 10.1016/j.biortech.2021.125793] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
The potential of membrane bioreactors to produce value-added products such as biofuels, biopolymers, proteins, organic acids and lipids at high productivities is emerging. Despite the promising results at laboratory scale, industrial deployment of this technology is hindered due to challenges associated with scale-up. This review aims to address these challenges and create a framework to encourage further research directed towards industrial application of membrane bioreactors to produce value-added products. This review describes the current state-of-the art in such bioreactor systems by exploiting membranes to increase the mass transfer rate of the limiting substrates, reach high cell concentrations and separate the inhibitory substances that may inhibit the bioconversion reaction. It also covers the current trends in commercialization, challenges linked with membrane usage, such as high costs and membrane fouling, and proposes possible future directions for the wider application of membrane bioreactors.
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Affiliation(s)
- Burcu Akkoyunlu
- School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland; BiOrbic Bioeconomy SFI Research Centre, University College Dublin, Dublin, Ireland
| | - Sorcha Daly
- School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland; BiOrbic Bioeconomy SFI Research Centre, University College Dublin, Dublin, Ireland
| | - Eoin Casey
- School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland; BiOrbic Bioeconomy SFI Research Centre, University College Dublin, Dublin, Ireland.
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Lüken A, Bruckhaus M, Kosfeld U, Emondts M, Wessling M. Automated tangential-flow diafiltration device. HARDWAREX 2021; 10:e00200. [PMID: 35607654 PMCID: PMC9123373 DOI: 10.1016/j.ohx.2021.e00200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tangential flow filtration (TFF) is a chemical unit operation used to purify and concentrate liquid suspensions of colloids, proteins, or cells. The solution flows tangentially across a membrane, such that a selective part of the fluid permeates the membrane while the filtrated matter is retained, increasing its concentration. TFF is a mild mechanical purification method that does not interact chemically with the filtrate. It is applied in sensitive separation tasks in protein chemistry, microbiology, or immunology. It is a fast alternative for dialysis applications, also applicable in the field of colloid purification. However, the costs of automated lab-scale devices (30,000 €) and the consumable membrane modules (100-600 €) make TFF currently hardly accessible for lab-scale polymer researchers. Therefore, we built a low-cost TFF system (2400 €) partly automated by an Arduino microcontroller and optimized for diafiltration buffer exchange and concentration processes in soft matter colloid research. We use medical hemodialysis membrane modules that only cost a share (20-50 €) of alternative TFF modules, and we demonstrate the functionality of the system for an exemplary colloidal microgel purification process.
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Affiliation(s)
- Arne Lüken
- RWTH Aachen University, AVT.CVT - Chair of Chemical Process Engineering, Forckenbeckstraße. 51, 52074 Aachen, Germany
| | - Maike Bruckhaus
- RWTH Aachen University, AVT.CVT - Chair of Chemical Process Engineering, Forckenbeckstraße. 51, 52074 Aachen, Germany
| | - Udo Kosfeld
- RWTH Aachen University, AVT.BioVT - Chair of Biochemical Engineering, Forckenbeckstraße. 51, 52074 Aachen, Germany
| | - Meike Emondts
- DWI - Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany
| | - Matthias Wessling
- RWTH Aachen University, AVT.CVT - Chair of Chemical Process Engineering, Forckenbeckstraße. 51, 52074 Aachen, Germany
- DWI - Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany
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8
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Blankert B, Van der Bruggen B, Childress AE, Ghaffour N, Vrouwenvelder JS. Potential Pitfalls in Membrane Fouling Evaluation: Merits of Data Representation as Resistance Instead of Flux Decline in Membrane Filtration. MEMBRANES 2021; 11:membranes11070460. [PMID: 34206467 PMCID: PMC8304183 DOI: 10.3390/membranes11070460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/14/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022]
Abstract
The manner in which membrane-fouling experiments are conducted and how fouling performance data are represented have a strong impact on both how the data are interpreted and on the conclusions that may be drawn. We provide a couple of examples to prove that it is possible to obtain misleading conclusions from commonly used representations of fouling data. Although the illustrative example revolves around dead-end ultrafiltration, the underlying principles are applicable to a wider range of membrane processes. When choosing the experimental conditions and how to represent fouling data, there are three main factors that should be considered: (I) the foulant mass is principally related to the filtered volume; (II) the filtration flux can exacerbate fouling effects (e.g., concentration polarization and cake compression); and (III) the practice of normalization, as in dividing by an initial value, disregards the difference in driving force and divides the fouling effect by different numbers. Thus, a bias may occur that favors the experimental condition with the lower filtration flux and the less-permeable membrane. It is recommended to: (I) avoid relative fouling performance indicators, such as relative flux decline (J/J0); (II) use resistance vs. specific volume; and (III) use flux-controlled experiments for fouling performance evaluation.
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Affiliation(s)
- Bastiaan Blankert
- Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (B.B.); (N.G.)
| | - Bart Van der Bruggen
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium;
- Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa
| | - Amy E. Childress
- Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA;
| | - Noreddine Ghaffour
- Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (B.B.); (N.G.)
| | - Johannes S. Vrouwenvelder
- Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (B.B.); (N.G.)
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- Correspondence:
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9
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Qi L, Qiao J. Design of Switchable Enzyme Carriers Based on Stimuli-Responsive Porous Polymer Membranes for Bioapplications. ACS APPLIED BIO MATERIALS 2021; 4:4706-4719. [PMID: 35007021 DOI: 10.1021/acsabm.1c00338] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Design of efficient enzyme carriers, where enzymes are conjugated to supports, has become an attractive research avenue. Immobilized enzymes are advantageous for practical applications because of their convenience in handling, ease of separation, and good reusability. However, the main challenge is that these traditional enzyme carriers are unable to regulate the enzymolysis efficiency or to protect the enzymes from proteolytic degradation, which restricts their effectiveness of enzymes in bioapplications. Enlightened by the stimuli-responsive channels in the natural cell membranes, conjugation of the enzymes within flat-sheet stimuli-responsive porous polymer membranes (SR-PPMs) as artificial cell membranes is an efficient strategy for circumventing this challenge. Controlled by the external stimuli, the multifunctional polymer chains, which are incorporated within the membranes and attached to the enzyme, change their structures to defend the enzyme from the external environmental disturbances and degradation by proteinases. Specifically, smart SR-PPM enzyme carriers (SR-PPMECs) not only permit convective substrate transfer through the accessible porous network, dramatically improving enzymolysis efficiency due to the adjustable pore sizes and the confinement effect, but they also act as molecular switches for regulating its permeability and selectivity. In this review, the concept of SR-PPMECs is presented. It covers the latest developments in design strategies of flat-sheet SR-PPFMs, fabrication protocols of SR-PPFMECs, strategies for the regulation of enzymolysis efficiency, and their cutting-edge bioapplications.
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Affiliation(s)
- Li Qi
- Beijing National Laboratory of Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juan Qiao
- Beijing National Laboratory of Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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10
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Semi-continuous production of volatile fatty acids from citrus waste using membrane bioreactors. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2020.102545] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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12
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Santos AG, de Albuquerque TL, Ribeiro BD, Coelho MAZ. In situ product recovery techniques aiming to obtain biotechnological products: A glance to current knowledge. Biotechnol Appl Biochem 2020; 68:1044-1057. [PMID: 32931049 DOI: 10.1002/bab.2024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/07/2020] [Indexed: 11/07/2022]
Abstract
Biotechnology and bioengineering techniques have been widely used in the production of biofuels, chemicals, pharmaceuticals, and food additives, being considered a "green" form of production because they use renewable and nonpolluting energy sources. On the other hand, in the traditional processes of production, the target product obtained by biotechnological routes must undergo several stages of purification, which makes these processes more expensive. In the past few years, some works have focused on processes that integrate fermentation to the recovery and purification steps necessary to obtain the final product required. This type of process is called in situ product recovery or extractive fermentation. However, there are some differences in the concepts of the techniques used in these bioprocesses. In this way, this review sought to compile relevant content on considerations and procedures that are being used in this field, such as evaporation, liquid-liquid extraction, permeation, and adsorption techniques. Also, the objective of this review was to approach the different configurations in the recent literature of the processes employed and the main bioproducts obtained, which can be used in the food, pharmaceutical, chemical, and/or fuel additives industry. We intended to elucidate concepts of these techniques, considered very recent, but which emerge as a promising alternative for the integration of bioprocesses.
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Affiliation(s)
- Ariane G Santos
- Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tiago L de Albuquerque
- Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bernardo D Ribeiro
- Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Alice Z Coelho
- Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Öztürk A, Yıldız A, Yılmaz H, Ergenekon P, Özkan M. Organic solute rejection capacities of Escherichia coli and Halomonas elongata aquaporin-incorporated nanofiltration membranes. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2019.1641521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ayşenur Öztürk
- Environmental Engineering Department, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Ayşen Yıldız
- Environmental Engineering Department, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Hilal Yılmaz
- Environmental Engineering Department, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Pınar Ergenekon
- Environmental Engineering Department, Gebze Technical University, Gebze, Kocaeli, Turkey
| | - Melek Özkan
- Environmental Engineering Department, Gebze Technical University, Gebze, Kocaeli, Turkey
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14
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Burniol-Figols A, Pinelo M, Skiadas IV, Gavala HN. Enhancing polyhydroxyalkanoate productivity with cell-retention membrane bioreactors. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107687] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Mahboubi A, Uwineza C, Doyen W, De Wever H, Taherzadeh MJ. Intensification of lignocellulosic bioethanol production process using continuous double-staged immersed membrane bioreactors. BIORESOURCE TECHNOLOGY 2020; 296:122314. [PMID: 31671329 DOI: 10.1016/j.biortech.2019.122314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
Processing complexities associated with different lignocellulosic bioethanol production stages have hindered reaching full commercial capacity. Therefore, in this study efforts were made to remediate some issues associated with hydrolysis and fermentation, by the integration of immersed membrane bioreactors (iMBRs) into lignocellulosic bioethanol production process. In this regards, double-staged continuous saccharification-filtration and co-fermentation-filtration of wheat straw slurry was conducted using iMBRs at filtration fluxes up to 51.0 l.m-2.h-1 (LMH). The results showed a stable long-term (264 h) continuous hydrolysis-filtration and fermentation-filtration with effective separation of lignin-rich solids (up to 70% lignin) from hydrolyzed sugars, and separation of yeast cells from bioethanol stream at an exceptional filtration performance at 21.9 LMH. Moreover, the effect of factors such as filtration flux, medium quality and backwashing on fouling and cake-layer formation was studied. The results confirmed the process intensification potentials of iMBRs in tackling commonly faced technical obstacles in lignocellulosic bioethanol production.
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Affiliation(s)
- A Mahboubi
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden; Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium.
| | - C Uwineza
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - W Doyen
- Mixed Matrix Material Innovations BVBA, B-2160 Wommelgem, Belgium
| | - H De Wever
- Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium
| | - M J Taherzadeh
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
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16
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Wainaina S, Parchami M, Mahboubi A, Horváth IS, Taherzadeh MJ. Food waste-derived volatile fatty acids platform using an immersed membrane bioreactor. BIORESOURCE TECHNOLOGY 2019; 274:329-334. [PMID: 30529480 DOI: 10.1016/j.biortech.2018.11.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
Volatile fatty acids (VFAs) are the key intermediates from anaerobic digestion (AD) process that can be a platform to synthesize products of higher value than biogas. However, some obstacles still exist that prevent large-scale production and application of VFAs, key among them being the difficulty in recovering the acids from the fermentation medium and low product yields. In this study, a novel anaerobic immersed membrane bioreactor (iMBR) with robust cleaning capabilities, which incorporated frequent backwashing to withstand the complex AD medium, was designed and applied for production and in situ recovery of VFAs. The iMBR was fed with food waste and operated without pH control, achieving a high yield of 0.54 g VFA/g VSadded. The continuous VFA recovery process in the iMBR was investigated for 40 days at OLRs of 2 gVS/L/d and 4 gVS/L/d without significant change in the permeate flux at a maximum suspended solids concentration of 31 g/L.
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Affiliation(s)
- Steven Wainaina
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - Mohsen Parchami
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - Amir Mahboubi
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
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17
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Fouling minimization at membranes having a 3D surface topology with microgels as soft model colloids. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.09.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Screening of organic solvents for bioprocesses using aqueous-organic two-phase systems. Biotechnol Adv 2018; 36:1801-1814. [DOI: 10.1016/j.biotechadv.2018.05.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 05/04/2018] [Accepted: 05/29/2018] [Indexed: 01/10/2023]
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19
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Removal of Bacterial Contamination from Bioethanol Fermentation System Using Membrane Bioreactor. FERMENTATION 2018. [DOI: 10.3390/fermentation4040088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A major issue hindering efficient industrial ethanol fermentation from sugar-based feedstock is excessive unwanted bacterial contamination. In industrial scale fermentation, reaching complete sterility is costly, laborious, and difficult to sustain in long-term operation. A physical selective separation of a co-culture of Saccharomyces cerevisiae and an Enterobacter cloacae complex from a buffer solution and fermentation media at dilution rates of 0.1–1 1/h were examined using an immersed membrane bioreactor (iMBR). The effect of the presence of yeast, inoculum size, membrane pore size, and surface area, backwashing and dilution rate on bacteria removal were assessed by evaluating changes in the filtration conditions, medium turbidity, and concentration of compounds and cell biomass. The results showed that using the iMBR with dilution rate of 0.5 1/h results in successful removal of 93% of contaminating bacteria in the single culture and nearly complete bacteria decontamination in yeast-bacteria co-culture. During continuous fermentation, application of lower permeate fluxes provided a stable filtration of the mixed culture with enhanced bacteria washout. This physical selective separation of bacteria from yeast can enhance final ethanol quality and yields, process profitability, yeast metabolic activity, and decrease downstream processing costs.
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Dey P, Pal P, Kevin JD, Das DB. Lignocellulosic bioethanol production: prospects of emerging membrane technologies to improve the process – a critical review. REV CHEM ENG 2018. [DOI: 10.1515/revce-2018-0014] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
To meet the worldwide rapid growth of industrialization and population, the demand for the production of bioethanol as an alternative green biofuel is gaining significant prominence. The bioethanol production process is still considered one of the largest energy-consuming processes and is challenging due to the limited effectiveness of conventional pretreatment processes, saccharification processes, and extreme use of electricity in common fermentation and purification processes. Thus, it became necessary to improve the bioethanol production process through reduced energy requirements. Membrane-based separation technologies have already gained attention due to their reduced energy requirements, investment in lower labor costs, lower space requirements, and wide flexibility in operations. For the selective conversion of biomasses to bioethanol, membrane bioreactors are specifically well suited. Advanced membrane-integrated processes can effectively contribute to different stages of bioethanol production processes, including enzymatic saccharification, concentrating feed solutions for fermentation, improving pretreatment processes, and finally purification processes. Advanced membrane-integrated simultaneous saccharification, filtration, and fermentation strategies consisting of ultrafiltration-based enzyme recycle system with nanofiltration-based high-density cell recycle fermentation system or the combination of high-density cell recycle fermentation system with membrane pervaporation or distillation can definitely contribute to the development of the most efficient and economically sustainable second-generation bioethanol production process.
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Affiliation(s)
- Pinaki Dey
- Department of Biotechnology , Karunya Institute of Technology and Sciences , Karunya Nagar Coimbatore 641114 , India
| | - Parimal Pal
- Department of Chemical Engineering , National Institute of Technology , Durgapur , India
| | - Joseph Dilip Kevin
- Department of Biotechnology , Karunya Institute of Technology and Sciences , Coimbatore , India
| | - Diganta Bhusan Das
- Department of Chemical Engineering, School of AACME , Loughborough University , Loughborough, Leicestershire , UK
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21
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Integration of Membrane Bioreactors with Edible Filamentous Fungi for Valorization of Expired Milk. SUSTAINABILITY 2018. [DOI: 10.3390/su10061940] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Sigurdardóttir SB, Lehmann J, Ovtar S, Grivel J, Negra MD, Kaiser A, Pinelo M. Enzyme Immobilization on Inorganic Surfaces for Membrane Reactor Applications: Mass Transfer Challenges, Enzyme Leakage and Reuse of Materials. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800307] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Sigyn Björk Sigurdardóttir
- Technical University of DenmarkDTU Chemical Engineering Søltofts Plads, Building 229 2800 Kgs. Lyngby Denmark
| | - Jonas Lehmann
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Simona Ovtar
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Jean‐Claude Grivel
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Michela Della Negra
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Andreas Kaiser
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Manuel Pinelo
- Technical University of DenmarkDTU Chemical Engineering Søltofts Plads, Building 229 2800 Kgs. Lyngby Denmark
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23
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Vlaev SD, Tsibranska I, Dzhonova-Atanasova D. Hydrodynamic characterization of dual-impeller submerged membrane bioreactor relevant to single-use bioreactor options. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Mahboubi A, Ylitervo P, Doyen W, De Wever H, Molenberghs B, Taherzadeh MJ. Continuous bioethanol fermentation from wheat straw hydrolysate with high suspended solid content using an immersed flat sheet membrane bioreactor. BIORESOURCE TECHNOLOGY 2017; 241:296-308. [PMID: 28575793 DOI: 10.1016/j.biortech.2017.05.125] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/18/2017] [Accepted: 05/19/2017] [Indexed: 06/07/2023]
Abstract
Finding a technological approach that eases the production of lignocellulosic bioethanol has long been considered as a great industrial challenge. In the current study a membrane bioreactor (MBR) set-up using integrated permeate channel (IPC) membrane panels was used to simultaneously ferment pentose and hexose sugars to ethanol in continuous fermentation of high suspended solid wheat straw hydrolysate. The MBR was optimized to flawlessly operated at high SS concentrations of up to 20% without any significant changes in the permeate flux and transmembrane pressure. By the help of the retained high cell concentration, the yeast cells were capable of tolerating and detoxifying the inhibitory medium and succeeded to co-consume all glucose and up to 83% of xylose in a continuous fermentation mode leading to up to 83% of the theoretical ethanol yield.
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Affiliation(s)
- Amir Mahboubi
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden; Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium.
| | - Päivi Ylitervo
- Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
| | - Wim Doyen
- Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium
| | - Heleen De Wever
- Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium
| | - Bart Molenberghs
- Flemish Institute for Technological Research, VITO NV, Boeretang 200, B-2400 Mol, Belgium
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25
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Gädke J, Thies JW, Kleinfeldt L, Kalinin A, Starke G, Lakowitz A, Biedendieck R, Garnweitner G, Dietzel A, Krull R. Integrated in situ -purification of recombinant proteins from Bacillus megaterium cultivation using SPION in stirred tank reactors. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Bafana R, Pandey RA. New approaches for itaconic acid production: bottlenecks and possible remedies. Crit Rev Biotechnol 2017; 38:68-82. [DOI: 10.1080/07388551.2017.1312268] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Richa Bafana
- AcSIR (Academy of Scientific & Innovative Research), CSIR-NEERI (National Environmental Engineering Research Institute), Nagpur, India
| | - R. A. Pandey
- AcSIR (Academy of Scientific & Innovative Research), CSIR-NEERI (National Environmental Engineering Research Institute), Nagpur, India
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27
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Kojić PS, Popović SS, Tokić MS, Šijački IM, Lukić NL, Jovičević DZ, Petrović DL. Hydrodynamics of an external-loop airlift reactor with inserted membrane. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2017. [DOI: 10.1590/0104-6632.20170342s20150399] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Penner D, Redepenning C, Mitsos A, Viell J. Conceptual Design of Methyl Ethyl Ketone Production via 2,3-Butanediol for Fuels and Chemicals. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03678] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Penner
- Aachener Verfahrenstechnik
- Process Systems Engineering, RWTH Aachen University, Forckenbeckstr.
51, 52074 Aachen, Germany
| | - Christian Redepenning
- Aachener Verfahrenstechnik
- Process Systems Engineering, RWTH Aachen University, Forckenbeckstr.
51, 52074 Aachen, Germany
| | - Alexander Mitsos
- Aachener Verfahrenstechnik
- Process Systems Engineering, RWTH Aachen University, Forckenbeckstr.
51, 52074 Aachen, Germany
| | - Jörn Viell
- Aachener Verfahrenstechnik
- Process Systems Engineering, RWTH Aachen University, Forckenbeckstr.
51, 52074 Aachen, Germany
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29
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Gädke J, Kleinfeldt L, Schubert C, Rohde M, Biedendieck R, Garnweitner G, Krull R. In situ affinity purification of his-tagged protein A from Bacillus megaterium cultivation using recyclable superparamagnetic iron oxide nanoparticles. J Biotechnol 2017; 242:55-63. [DOI: 10.1016/j.jbiotec.2016.11.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/16/2016] [Accepted: 11/22/2016] [Indexed: 10/20/2022]
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30
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Reverse membrane bioreactor: Introduction to a new technology for biofuel production. Biotechnol Adv 2016; 34:954-975. [DOI: 10.1016/j.biotechadv.2016.05.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/08/2016] [Accepted: 05/25/2016] [Indexed: 11/22/2022]
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31
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Luelf T, Bremer C, Wessling M. Rope coiling spinning of curled and meandering hollow-fiber membranes. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.01.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Ji P, Motin A, Shan W, Bénard A, Bruening ML, Tarabara VV. Dynamic crossflow filtration with a rotating tubular membrane: Using centripetal force to decrease fouling by buoyant particles. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2015.11.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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34
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Investigation of a submerged membrane reactor for continuous biomass hydrolysis. FOOD AND BIOPRODUCTS PROCESSING 2015. [DOI: 10.1016/j.fbp.2015.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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35
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Kantzow C, Mayer A, Weuster-Botz D. Continuous gas fermentation by Acetobacterium woodii in a submerged membrane reactor with full cell retention. J Biotechnol 2015; 212:11-8. [DOI: 10.1016/j.jbiotec.2015.07.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 07/26/2015] [Accepted: 07/28/2015] [Indexed: 11/16/2022]
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36
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Zydney AL. Continuous downstream processing for high value biological products: A Review. Biotechnol Bioeng 2015; 113:465-75. [DOI: 10.1002/bit.25695] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 07/01/2015] [Accepted: 07/03/2015] [Indexed: 02/03/2023]
Affiliation(s)
- Andrew L. Zydney
- Department of Chemical Engineering; The Pennsylvania State University; University Park Pennsylvania 16802
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37
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Satilmis B, Alnajrani MN, Budd PM. Hydroxyalkylaminoalkylamide PIMs: Selective Adsorption by Ethanolamine- and Diethanolamine-Modified PIM-1. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01196] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Bekir Satilmis
- School
of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | | | - Peter M. Budd
- School
of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
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38
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Van Hecke W, Kaur G, De Wever H. Advances in in-situ product recovery (ISPR) in whole cell biotechnology during the last decade. Biotechnol Adv 2014; 32:1245-1255. [DOI: 10.1016/j.biotechadv.2014.07.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 07/07/2014] [Accepted: 07/18/2014] [Indexed: 12/27/2022]
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39
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Jiang H, She F, Du Y, Chen R, Xing W. One-step Continuous Phenol Synthesis Technology via Selective Hydroxylation of Benzene over Ultrafine TS-1 in a Submerged Ceramic Membrane Reactor. Chin J Chem Eng 2014. [DOI: 10.1016/j.cjche.2014.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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Femmer T, Carstensen F, Wessling M. A membrane stirrer for product recovery and substrate feeding. Biotechnol Bioeng 2014; 112:331-8. [PMID: 25212847 DOI: 10.1002/bit.25448] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/25/2014] [Accepted: 09/05/2014] [Indexed: 11/10/2022]
Abstract
During fermentation processes, in situ product recovery (ISPR) using submerged membranes allows a continuous operation mode with effective product removal. Continuous recovery reduces product inhibition and organisms in the reactor are not exposed to changing reaction conditions. For an effective in situ product removal, submerged membrane systems should have a sufficient large membrane area and an anti-fouling concept integrated in a compact device for the limited space in a lab-scale bioreactor. We present a new membrane stirrer with integrated filtration membranes on the impeller blades as well as an integrated gassing concept in an all-in-one device. The stirrer is fabricated by rapid prototyping and is equipped with a commercial micromesh membrane. Filtration performance is tested using a yeast cell suspension with different stirring speeds and aeration fluxes. We reduce membrane fouling by backflushing through the membrane with the product stream.
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Affiliation(s)
- T Femmer
- Chemical Process Engineering AVT.CVT, RWTH Aachen University, Turmstraße 46, 52064, Aachen, North Rhine-Westphalia, Germany; DWI - Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, North Rhine-Westphalia, Germany
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41
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Meier K, Carstensen F, Wessling M, Regestein L, Büchs J. Quasi-continuous fermentation in a reverse-flow diafiltration bioreactor. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.08.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Meier K, Djeljadini S, Regestein L, Büchs J, Carstensen F, Wessling M, Holland T, Raven N. In situ cell retention of a CHO culture by a reverse-flow diafiltration membrane bioreactor. Biotechnol Prog 2014; 30:1348-55. [PMID: 25202924 DOI: 10.1002/btpr.1988] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 08/28/2014] [Indexed: 11/10/2022]
Abstract
Heterogeneities occur in various bioreactor designs including cell retention devices. Whereas in external devices changing environmental conditions cannot be prevented, cells are retained in their optimal environment in internal devices. Conventional reverse-flow diafiltration utilizes an internal membrane device, but pulsed feeding causes temporal heterogeneities. In this study, the influence of conventional reverse-flow diafiltration on the yeast Hansenula polymorpha is investigated. Alternating 180 s of feeding with 360 s of non-feeding at a dilution rate of 0.2 h(-1) results in an oscillating DOT signal with an amplitude of 60%. Thereby, induced short-term oxygen limitations result in the formation of ethanol and a reduced product concentration of 25%. This effect is enforced at increased dilution rate. To overcome this cyclic problem, sequential operation of three membranes is introduced. Thus, quasi-continuous feeding is achieved reducing the oscillation of the DOT signal to an amplitude of 20% and 40% for a dilution rate of 0.2 h(-1) and 0.5 h(-1) , respectively. Fermentation conditions characterized by complete absence of oxygen limitation and without formation of overflow metabolites could be obtained for dilution rates from 0.1 h(-1) - 0.5 h(-1) . Thus, sequential operation of three membranes minimizes oscillations in the DOT signal providing a nearly homogenous culture over time.
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Affiliation(s)
- Kristina Meier
- RWTH Aachen, AVT-Biochemical Engineering, Worringer Weg 1, Aachen, 52074, Germany
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43
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Malmali M, Stickel JJ, Wickramasinghe SR. Sugar concentration and detoxification of clarified biomass hydrolysate by nanofiltration. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.06.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Meier K, Carstensen F, Scheeren C, Regestein L, Wessling M, Büchs J. In situ product recovery of single-chain antibodies in a membrane bioreactor. Biotechnol Bioeng 2014; 111:1566-76. [DOI: 10.1002/bit.25220] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kristina Meier
- RWTH Aachen; AVT-Biochemical Engineering; Worringer Weg 1 52074 Aachen Germany
| | | | - Christoph Scheeren
- RWTH Aachen; AVT-Biochemical Engineering; Worringer Weg 1 52074 Aachen Germany
| | - Lars Regestein
- RWTH Aachen; AVT-Biochemical Engineering; Worringer Weg 1 52074 Aachen Germany
| | - Matthias Wessling
- RWTH Aachen; AVT-Chemical Product & Process Engineering; Aachen Germany
| | - Jochen Büchs
- RWTH Aachen; AVT-Biochemical Engineering; Worringer Weg 1 52074 Aachen Germany
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45
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Hwang KJ, Tsai HY, Chen ST. Enzymatic hydrolysis suspension cross-flow diafiltration using polysulfone hollow fiber module. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.12.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Application of a magnetically induced membrane vibration (MMV) system for lignocelluloses hydrolysate filtration. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.10.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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47
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48
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Carstensen F, Klement T, Büchs J, Melin T, Wessling M. Continuous production and recovery of itaconic acid in a membrane bioreactor. BIORESOURCE TECHNOLOGY 2013; 137:179-187. [PMID: 23587818 DOI: 10.1016/j.biortech.2013.03.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 03/04/2013] [Accepted: 03/07/2013] [Indexed: 06/02/2023]
Abstract
This study presents the fermentative production of the platform chemical itaconic acid using the fungus Ustilago maydis. The innovative aspect here is that the fermentation is run continuously with integrated cell retention and product recovery using membranes. Unlike conventional membrane processes, we use the recently introduced "reverse-flow diafiltration" which prevents performance loss by periodically reversing the flow direction. Results show that filtration stability can be (1) significantly improved compared to conventional membrane processes and (2) product recovery was constantly high at highly dynamic conditions. This is especially remarkable when taking into account the complex nature of fungi cells which tend to block surfaces rapidly.
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49
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Carstensen F, Kasperidus T, Wessling M. Overcoming the drawbacks of microsieves with micromeshes for in situ product recovery. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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High cell density fed-batch fermentations for lipase production: feeding strategies and oxygen transfer. Bioprocess Biosyst Eng 2013; 36:1527-43. [DOI: 10.1007/s00449-013-0943-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 03/14/2013] [Indexed: 11/26/2022]
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