Microalgae-assisted fixed-film activated sludge MFC for landfill leachate treatment and energy recovery

Elmaadawy, Khaled; Liu, Bingchuan; Hassan, Gamal K.; Wang, Xiaohe; Wang, Qiuwei; Hu, Jingping; Hou, Huijie; Yang, Jiakuan; Wu, X. Ching

doi:10.1016/j.psep.2022.02.021

Cited by 36 publications

(12 citation statements)

References 62 publications

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“…They have an effective pore diameter 0.5–20 µm (MF) and 0.01–0.1 µm (UF). A low-cost sheet of carbon felt [ 82 ] can perform functions similar to MF and UF in membrane bioreactors (MBR) and membrane microbiological fuel cells (MMFC). These membranes are used to retain solid particles and liquid droplets, colloidal species, and bacteria, as well as separation from solutions of viruses and macromolecular substances with a molecular weight of the order of several thousand.…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

“…Currently, a great number of articles describe the successful use of mixed bacterial communities that form biofilms on the cathode and anode. The addition of these microalgae communities, which are in the form of a suspension in the cathode compartment and as a biofilm on the cathode [ 82 , 92 , 93 ], contributes to an increase in the current density achieved and a more complete denitrification of the waste.…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

“…MMFC are widely investigated to recover N III from wastewater [ 113 ], landfill leachate [ 82 ] and urine [ 114 , 115 , 116 ], where the conversion of urine to ammonium via ureolysis is accelerated by a generated electric field. The presence of CEM and AEM in such cells makes it possible to separate P V (which is in the form of phosphoric acid anions) and NH 4 + cations.…”

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

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Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

2022

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The review describes the place of membrane methods in solving the problem of the recovery and re-use of biogenic elements (nutrients), primarily trivalent nitrogen NIII and pentavalent phosphorus PV, to provide the sustainable development of mankind. Methods for the recovery of NH4+ − NH3 and phosphates from natural sources and waste products of humans and animals, as well as industrial streams, are classified. Particular attention is paid to the possibilities of using membrane processes for the transition to a circular economy in the field of nutrients. The possibilities of different methods, already developed or under development, are evaluated, primarily those that use ion-exchange membranes. Electromembrane methods take a special place including capacitive deionization and electrodialysis applied for recovery, separation, concentration, and reagent-free pH shift of solutions. This review is distinguished by the fact that it summarizes not only the successes, but also the “bottlenecks” of ion-exchange membrane-based processes. Modern views on the mechanisms of NH4+ − NH3 and phosphate transport in ion-exchange membranes in the presence and in the absence of an electric field are discussed. The innovations to enhance the performance of electromembrane separation processes for phosphate and ammonium recovery are considered.

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Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

Section: Modern Trends In Nutrients Recoverymentioning

confidence: 99%

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Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

2022

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“…However, new low-cost membrane materials have been introduced in MFCs as membrane separators, such as honeycomb material. 14 Honeycomb as a membrane separator in an MFC to further bring the operation cost of an MFC, especially upscaling the production. 15 Previous works have shown that the flow rate with different flow speeds in MFCs plays an important factor in enhancing the performance of MFCs.…”

Section: Introductionmentioning

confidence: 99%

“…These studies are significant in the development of MFCs. However, new low‐cost membrane materials have been introduced in MFCs as membrane separators, such as honeycomb material 14 . Honeycomb as a membrane separator in an MFC to further bring the operation cost of an MFC, especially upscaling the production 15 …”

Section: Introductionmentioning

confidence: 99%

Geometric effect of honeycomb on the performance of the recirculation microbial fuel cells

Wang

Ubando

et al. 2022

Intl J of Energy Research

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Microbial fuel cells (MFCs) are recognized as a state-of-the-art technology that generates biochemical energy and converts it to electrical energy. MFCs include a series of metabolizing organic material from wastewater and allow its treatment while providing the opportunity to generate electricity. It is to be noted that the buffer used commonly in MFCs is relatively costly and quantified to have environmental impacts when applied in commercial wastewater treatment. To address the concern related to the buffer, this work proposes to evaluate a geometrical design of honeycomb whose inner diameters (0.4, 0.7, 1.2 cm) and lengths (2.5, 5 cm) were selected to replace the buffer. With the introduction of the honeycomb design, the study also aims to investigate its effect on the performance of recirculation within the MFCs. This is then evaluated under the optimal operational flow rate and pH level, which were already established by previous studies. The results have revealed that the optimal geometry of the honeycomb consists of a dimension with an inner diameter of 1.2 cm and a length of 5 cm. This combination of inner diameter and length of the honeycomb has yielded the highest power density for the MFC at 491 mW m À2 when compared with the other cases. The findings of this study will be useful for the development of a cost-effective and environmentally friendly MFC when applied in commercial wastewater treatment in the future.

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Problems of Improving Organics, Ammonium and Phosphorus Treatment with Algal‐assisted MFCs

Hiep

2024

Photosynthesis‐Assisted Energy Generation

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Microalgae-assisted fixed-film activated sludge MFC for landfill leachate treatment and energy recovery

Cited by 36 publications

References 62 publications

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

Recovery of Nutrients from Residual Streams Using Ion-Exchange Membranes: Current State, Bottlenecks, Fundamentals and Innovations

Geometric effect of honeycomb on the performance of the recirculation microbial fuel cells

Problems of Improving Organics, Ammonium and Phosphorus Treatment with Algal‐assisted MFCs

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