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Kim SY, Curko J, Matosic M, Herrera A, Lopez-Vazquez CM, Brdjanovic D, Garcia HA. Effects of a sidestream concentrated oxygen supply system on the membrane filtration performance of a high-loaded membrane bioreactor. ENVIRONMENTAL RESEARCH 2023; 237:116914. [PMID: 37597824 DOI: 10.1016/j.envres.2023.116914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/27/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
To investigate the influence of high-pressure and shear effects introduced by a concentrated oxygen supply system on the membrane filtration performance, a laboratory-scale membrane bioreactor (MBR) fed artificial municipal wastewater was operated continuously for 80 days in four phases equipped with different aerations systems: (P1) bubble diffusers (days 0-40), (P2) concentrated oxygen supply system, the supersaturated dissolved oxygen (SDOX) (days 41-56), (P3) bubble diffusers (days 57-74), and (P4) SDOX (days 75-80). Various sludge physical-chemical parameters, visual inspection of the membrane, and permeability evaluations were performed. Results showed that the high-pressure effects contributed to fouling of the membranes compared to the bubble diffuser aeration system. Biofouling by microorganisms appeared to be the main contributor to the cake layer when bubble diffusers were used, while fouling by organic matter seemed to be the main contributor to the cake layer when SDOX was used. Small particle size distribution (PSD) (ranging from 1 to 10 and 1-50 μm in size) fractions are a main parameter affecting the intense fouling of membranes (e.g., formation of a dense and thin cake layer). However, PSD alone cannot explain the worsened membrane fouling tendency. Therefore, it can be assumed that a combination of several factors (which certainly includes PSD) led to the severe membrane fouling caused by the high-pressure and shear.
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Affiliation(s)
- Sang Yeob Kim
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands; Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands; Department of Civil and Environmental Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea.
| | - Josip Curko
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Marin Matosic
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Aridai Herrera
- HAC Group, LLC, 8111 Hicckman Mills Dr, Kansas City, MO, 64132, United States
| | - Carlos M Lopez-Vazquez
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands
| | - Damir Brdjanovic
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands; Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, the Netherlands
| | - Hector A Garcia
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands
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Zhou G, Low ZX, Feng S, Zhang F, Zhong Z, Xing W. Effect of relative humidity and dust moisture content on filtration performance of bag filter. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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The Role of Emergent Processing Technologies in Beer Production. BEVERAGES 2023. [DOI: 10.3390/beverages9010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The brewing industry is regarded as a fiercely competitive and insatiable sector of activity, driven by the significant technological improvements observed in recent years and the most recent consumer trends pointing to a sharp demand for sensory enhanced beers. Some emergent and sustainable technologies regarding food processing such as pulsed electric fields (PEF), ultrasound (US), thermosonication (TS), high-pressure processing (HPP), and ohmic heating (OH) have shown the potential to contribute to the development of currently employed brewing methodologies by both enhancing the quality of beer and contributing to processing efficiency with a promise of being more environmentally friendly. Some of these technologies have not yet found their way into the industrial brewing process but already show potential to be embedded in continuous thermal and non-thermal unit operations such as pasteurization, boiling and sterilization, resulting in beer with improved organoleptic properties. This review article aims to explore the potential of different advanced processing technologies for industrial application in several key stages of brewing, with particular emphasis on continuous beer production.
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Chipakwe V, Karlkvist T, Rosenkranz J, Chehreh Chelgani S. Exploring the effect of a polyacrylic acid-based grinding aid on magnetite-quartz flotation separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hennemann M, Fattahi E, Gastl M, Becker T. Compression Mechanism in Multilayered Filter Cakes. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Martin Hennemann
- Technical University Munich Chair of Brewing and Beverage Technology Weihenstephaner Steig 20 85354 Freising Germany
| | - Ehsan Fattahi
- Technical University Munich Chair of Brewing and Beverage Technology Weihenstephaner Steig 20 85354 Freising Germany
| | - Martina Gastl
- Technical University Munich Chair of Brewing and Beverage Technology Weihenstephaner Steig 20 85354 Freising Germany
| | - Thomas Becker
- Technical University Munich Chair of Brewing and Beverage Technology Weihenstephaner Steig 20 85354 Freising Germany
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