An algal assisted constructed wetland-microbial fuel cell integrated with sand filter for efficient wastewater treatment and electricity production

Gupta, Supriya; Nayak, Ankita; Roy, Chandrima; Yadav, Asheesh Kumar

doi:10.1016/j.chemosphere.2020.128132

Cited by 68 publications

(10 citation statements)

References 34 publications

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“…Table 6 summarizes some microalgal species utilized in WWT for nutrients and organics removal [ [171] , [172] , [173] , [174] , [175] , [176] , [177] , [178] , [179] ]. Microalgae were involved through constructed wetland-microbial fuel cells integrated with a sand filter to eradicate the cost of external mechanical aeration systems and to eliminate pollutants [ 180 ]. COD removal (17.59%) was ascribed mainly to the symbiotic role between microalgae and aerobic bacteria as microalgae supplied aerobic bacteria with oxygen required to oxidize organic matter.…”

Section: Environmental Applications Of Microalgaementioning

confidence: 99%

Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects

Abdelfattah

Ali

Ramadan

et al. 2023

Environmental Science and Ecotechnology

211

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Section: Environmental Applications Of Microalgaementioning

confidence: 99%

Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects

Abdelfattah

Ali

Ramadan

et al. 2023

Environmental Science and Ecotechnology

211

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“…9 ) [ 50 ]. Furthermore, a recent study was published where a wetland-microbial fuel cell assisted by algae was integrated for efficient wastewater treatment [ 51 ]. In this system, the algal biomass acted as catholyte and passively aerated the cathode ions in the system, improving the performance significantly.…”

Section: Integrated Applications and Future Advancementsmentioning

confidence: 99%

A review on the current status and post-pandemic prospects of third-generation biofuels

Maliha

Abu-Hijleh

2022

Energy Syst

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The rapid increase in fossil fuel depletion, environmental degradations, and industrialization have encouraged the need and production of sustainable fuel alternatives. This has led to the increase in interest in biofuels, especially third-generation biofuels produced from microalgae since they do not compete with food and land supplies. However, the global share for these biofuels has been inadequate recently, especially due to the ongoing global pandemic. Therefore, this paper offers a review of the state-of-the-art study of the production field of third-generation biofuel from microalgae. The current review aims to focus on the different aspects of algal biofuel production that requires further attention to produce it at a large scale. It was found that several strategies during the life cycle of algal biofuel production can significantly increase its quality and yield while reducing cost, energy, and other related attributes. This paper also focuses on the challenges for large-scale production of third-generation biofuels pre and post COVID-19 to better understand the barriers. The high cost of this fuel’s production and sale tends to be the major reason behind the lack of large-scale production, hence, inadequacy to meet the global need. Third-generation biofuel has so much to offer including many integrated applications and advanced uses in the future fuel industry. Therefore, it is important to cope with the ongoing circumstances and emphasize the future of algal biofuel as a sustainable source.

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“…The lower ammonium level in the Hyp might have occurred owing to enhanced nitrification and nitrate uptake by A. tuberosum. Previous researchers have shown that plants in the cathode region could be beneficial for ammonium removal and bioelectricity generation [25,41,42]. Undoubtedly, further studies are required to fully understand the nitrogen removal pathways in the MFC-Hyp system.…”

Section: Nutrient and Cod Removalmentioning

confidence: 99%

Coupling Microbial Fuel Cell and Hydroponic System for Electricity Generation, Organic Removal, and Nutrient Recovery via Plant Production from Wastewater

Paucar

Sato

2022

Energies

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The world is predicted to face serious threats from the depletion of non-renewable energy resources, freshwater shortage, and food scarcity. Microbial fuel cells (MFCs) are innovative bio-electrochemical devices capable of directly converting chemical energy into electrical energy using microorganisms as a catalyst. This ability has been explored for generating electricity using wastewater as an energy source, while simultaneously treating wastewater. On the other hand, hydroponics is the cultivation of plants in water without soil. The goal of this study was to develop a novel integrated microbial fuel cell-hydroponic system (MFC-Hyp system) that possesses the ability to concurrently generate electricity while degrading organic pollutants (Chemical oxygen demand, COD) in wastewater, remove and recover nutrients (phosphorus, P and nitrogen, N) from the wastewater, and produce edible plants. The MFC-Hyp system developed in this study produced a power density of 250.7 mW/m2. The power density increased by approximately 19% and the phosphorus recovery increased to 7.5% in the presence of Allium tuberosum compared to 4.9% without the plant (e.g., in the control). The removal efficiencies of nitrate, phosphate, and COD are 32%, 11%, and 80%, respectively. The results indicate that the novel integrated MFC-Hyp system can remove COD from wastewater, generate electricity using wastewater as an energy source, and utilize nutrients for growing plants; however, this system requires further improvement for field implementation.

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An algal assisted constructed wetland-microbial fuel cell integrated with sand filter for efficient wastewater treatment and electricity production

Cited by 68 publications

References 34 publications

Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects

Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects

A review on the current status and post-pandemic prospects of third-generation biofuels

Coupling Microbial Fuel Cell and Hydroponic System for Electricity Generation, Organic Removal, and Nutrient Recovery via Plant Production from Wastewater

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