Prevention and removal of membrane and separator biofouling in bioelectrochemical systems: a comprehensive review

Pasternak, Grzegorz; Rosset, Aleksander de; Tyszkiewicz, Natalia; Widera, Bartosz; Greenman, John; Ieropoulos, Ioannis

doi:10.1016/j.isci.2022.104510

Cited by 23 publications

(6 citation statements)

References 84 publications

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“…Because of their biotic properties, these biotic separators provide potential pathways for pollutant degradation (Figure a), instead of causing biofouling as observed in ion-selective separators that leads to reduced ion transfer inside MFCs. − Specifically, biotic separators contributed ∼22 mg L –1 COD removal and ∼270 kJ m –3 energy consumption in an MFC module with a hydraulic retention time (HRT) of ∼6.5 h, which implies that 8.3% of COD and 13.4% of the energy were removed from the influent by the biotic separator . In addition, because of the position in the physical boundary of the aerobic cathode and anaerobic anode, biotic separators also provide potential reaction sites for simultaneous nitrification and denitrification reaction (SNDR) (Figure a). , Moreover, they exhibit superior removal of suspended solids (SS) through biofilm interception (Figure a) .…”

Section: Evolution and Recent Advances In Separatorsmentioning

confidence: 99%

Sorting Out the Latest Advances in Separators and Pilot-Scale Microbial Electrochemical Systems for Wastewater Treatment: Concomitant Development, Practical Application, and Future Perspective

Li,

Liang,

Tian

et al. 2024

Environ. Sci. Technol.

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To date, dozens of pilot-scale microbial fuel cell (MFC) devices have been successfully developed worldwide for treating various types of wastewater. The availability and configurations of separators are determining factors for the economic feasibility, efficiency, sustainability, and operability of these devices. Thus, the concomitant advances between the separators and pilot-scale MFC configurations deserve further clarification. The analysis of separator configurations has shown that their evolution proceeds as follows: from ion-selective to ion-non-selective, from nonpermeable to permeable, and from abiotic to biotic. Meanwhile, their cost is decreasing and their availability is increasing. Notably, the novel MFCs configured with biotic separators are superior to those configured with abiotic separators in terms of wastewater treatment efficiency and capital cost. Herein, a highly comprehensive review of pilot-scale MFCs (>100 L) has been conducted, and we conclude that the intensive stack of the liquid cathode configuration is more advantageous when wastewater treatment is the highest priority. The use of permeable biotic separators ensures hydrodynamic continuity within the MFCs and simplifies reactor configuration and operation. In addition, a systemic comparison is conducted between pilot-scale MFC devices and conventional decentralized wastewater treatment processes. MFCs showed comparable cost, higher efficiency, long-term stability, and significant superiority in carbon emission reduction. The development of separators has greatly contributed to the availability and usability of MFCs, which will play an important role in various wastewater treatment scenarios in the future.

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Section: Evolution and Recent Advances In Separatorsmentioning

confidence: 99%

Sorting Out the Latest Advances in Separators and Pilot-Scale Microbial Electrochemical Systems for Wastewater Treatment: Concomitant Development, Practical Application, and Future Perspective

Li,

Liang,

Tian

et al. 2024

Environ. Sci. Technol.

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“…Biofouling and system stability: The occurrence of biofouling results in the development of insulating layers on the surfaces of electrodes [139], and this can impede electron transmission between microbes and electrodes. Consequently, this results in instability in bioelectrochemical systems due to variations in biofilm thickness, microbial composition, and detachment-reattachment dynamics.…”

Section: Challenges and Future Directionsmentioning

confidence: 99%

“…Managing and controlling biofouling: The modification of surfaces involved in EET systems has the potential to mitigate the occurrence of biofouling. One such approach is the utilization of electrode materials possessing anti-fouling capabilities [139]. As biofouling is frequently driven by biofilm production, techniques aiming at stimulating the formation of conductive biofilms through the selection of electrode materials that enable the growth of conductive biofilms can be beneficial.…”

Section: Challenges and Future Directionsmentioning

confidence: 99%

Strategies for Enhancing Extracellular Electron Transfer in Environmental Biotechnology: A Review

Hazzan,

Zhao,

Xiao

2023

Applied Sciences

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Extracellular electron transfer (EET) is a biological mechanism that plays a crucial role in various bioelectrochemical systems (BESs) and has substantial implications for renewable energy production. By utilizing the metabolic capacities of exoelectrogens, BESs offer a viable and environmentally friendly approach to electricity generation and chemical production; however, the diminished effectiveness of EET remains a hindrance to their optimal application in practical contexts. This paper examines the various strategies that have the potential to be employed to enhance the efficiency of EET systems and explores the potential for the integration of BESs technology with contemporary technologies, resulting in the development of an enhanced and sustainable system. It also examines how quorum sensing, electrode modifications, electron shuttles, and mediators can aid in improving EET performance. Many technological innovations, such as additive manufacturing, the science of nanotechnology, the technique of genetic engineering, computational intelligence, and other combinations of technologies that can be used to augment the efficacy of BESs are also discussed. Our findings will help readers understand how BESs, though an evolving technology, can play an important role in addressing our environmental concerns. Technical constraints are identified, and future directions in the field of EET are suggested.

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“…The characterization of membrane biofouling involves evaluating the microbial community, the fouling layer, and the quantification of the EPS matrix. Various assays, microscopic and spectroscopic techniques have been employed to characterize membrane biofouling [29]. Kerdi et al [30] used 3D-optical coherence tomography (OCT) to characterize the intrinsic structure and the mechanical properties of the biofilm developing on ultrafiltration (UF) polyethersulfone membranes without altering their chemical and/or physical properties.…”

Section: Membrane Biofouling Characterizationmentioning

confidence: 99%

A Review on Membrane Biofouling: Prediction, Characterization, and Mitigation

et al. 2022

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Water scarcity is an increasing problem on every continent, which instigated the search for novel ways to provide clean water suitable for human use; one such way is desalination. Desalination refers to the process of purifying salts and contaminants to produce water suitable for domestic and industrial applications. Due to the high costs and energy consumption associated with some desalination techniques, membrane-based technologies have emerged as a promising alternative water treatment, due to their high energy efficiency, operational simplicity, and lower cost. However, membrane fouling is a major challenge to membrane-based separation as it has detrimental effects on the membrane’s performance and integrity. Based on the type of accumulated foulants, fouling can be classified into particulate, organic, inorganic, and biofouling. Biofouling is considered the most problematic among the four fouling categories. Therefore, proper characterization and prediction of biofouling are essential for creating efficient control and mitigation strategies to minimize the damage associated with biofouling. Moreover, the use of artificial intelligence (AI) in predicting membrane fouling has garnered a great deal of attention due to its adaptive capability and prediction accuracy. This paper presents an overview of the membrane biofouling mechanisms, characterization techniques, and predictive methods with a focus on AI-based techniques, and mitigation strategies.

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Prevention and removal of membrane and separator biofouling in bioelectrochemical systems: a comprehensive review

Cited by 23 publications

References 84 publications

Sorting Out the Latest Advances in Separators and Pilot-Scale Microbial Electrochemical Systems for Wastewater Treatment: Concomitant Development, Practical Application, and Future Perspective

Sorting Out the Latest Advances in Separators and Pilot-Scale Microbial Electrochemical Systems for Wastewater Treatment: Concomitant Development, Practical Application, and Future Perspective

Strategies for Enhancing Extracellular Electron Transfer in Environmental Biotechnology: A Review

A Review on Membrane Biofouling: Prediction, Characterization, and Mitigation

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