Microbial fuel cell for simultaneous removal of uranium (VI) and nitrate

Vijay, Ankisha; Khandelwal, Amitap; Chhabra, Meenu; Vincent, Tessy

doi:10.1016/j.cej.2020.124157

Cited by 49 publications

(11 citation statements)

References 48 publications

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“…Following on this point, Jung et al reported almost 60% of ammonium nitrogen removal through doublechamber MFC in 6 days from swine wastewater containing 219 mg L −1 of influent concentration of ammonia (Jung et al, 2008). Moreover, Vijay et al developed a dual-chamber MFC, where a maximum 0.130 kg NO − 3 -N m −3 day −1 of nitrate was removed with the simultaneous production of 2.91 W m −3 of power (Vijay et al, 2020). In another research, Kim et al obtained a maximum power density of 48.1 mA m −2 along with removal of 61.1% of COD and 77.5% of ammonia nitrogen from dualchamber MFC coupled with anaerobic digester (Kim et al, 2015).…”

Section: Removal Of Ammonium Nitrogen Using Different Types Of Metsmentioning

confidence: 98%

“…The existence of these nutrients in untreated wastewater provides nutrient build-up in the aquatic environment that delivers a favorable growth condition for algae and other water hyacinths. Therefore, the abundant growth of these micro and macroorganisms in water bodies causes eutrophication that affects the aquatic ecosystem adversely by deteriorating the water quality via diminishing the level of dissolved oxygen (Vijay et al, 2020). Hence, the removal of excess nutrients from the water bodies is an utmost necessity to improve the quality of water.…”

Section: Nutrients and Other Valuable Products Recovery From Contaminated Wastewatermentioning

confidence: 99%

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A Sustainable Approach for the Production of Green Energy With the Holistic Treatment of Wastewater Through Microbial Electrochemical Technologies: A Review

2021

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With the plausible depletion of fossil fuels in the near future and its associated environmental impacts, researchers have instigated the search for eco-friendly renewable bioenergy. Moreover, the increase in water pollution by industrial and anthropogenic activities is another alarming global concern. In this regard, the production of renewable and sustainable green bioenergy utilizing wastewater through microbial electrochemical technologies (METs) can alleviate these crucial problems by providing a sustainable solution to meet both the demands of energy and fresh water supply. Moreover, different bio-centered techniques such as nitrification and denitrification for nitrogen removal, and elimination of carcinogenic metals, pathogens, and organic components utilizing microbiota followed by toxicity sensing of different pollutants have been efficaciously exhibited through METs. However, inferior bioenergy production and recovery of low biomass yield in METs with high operational cost are noteworthy bottlenecks that hinder the scalability of this technology. Therefore, this review elaborates different physicochemical factors affecting the performance of METs, microbial interaction for the development of stable biofilm and so forth. Moreover, a broad overview on the production of bioenergy, along with the removal of pollutants from wastewater through different types of METs are also highlighted. Furthermore, the production of biofuels like ethanol, methanol, biodiesel, and gaseous fuel like bio-H2 coupled with power generation using photosynthetic microorganisms via CO2 sequestration through METs are also discussed. Additionally, recent developments with future scope for the field-scale implementation of METs along with their bottlenecks have been discussed, which has not been critically reviewed to date.

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Section: Removal Of Ammonium Nitrogen Using Different Types Of Metsmentioning

confidence: 98%

Section: Nutrients and Other Valuable Products Recovery From Contaminated Wastewatermentioning

confidence: 99%

A Sustainable Approach for the Production of Green Energy With the Holistic Treatment of Wastewater Through Microbial Electrochemical Technologies: A Review

2021

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“…The graphite rough provided reasonable results in terms of energy generation and pollutant removal efficiency, according to their findings. Graphite felt was studied by Vijay et al [ 37 ] as an anode in an MFC using nuclear wastewater sludge as an inoculum source in order to remove uranium. Uranium removal rates were about 32–90% for 24–120 h of MFC operation.…”

Section: The Anodementioning

confidence: 99%

Applications of Nanomaterials in Microbial Fuel Cells: A Review

et al. 2022

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Microbial fuel cells (MFCs) are an environmentally friendly technology and a source of renewable energy. It is used to generate electrical energy from organic waste using bacteria, which is an effective technology in wastewater treatment. The anode and the cathode electrodes and proton exchange membranes (PEM) are important components affecting the performance and operation of MFC. Conventional materials used in the manufacture of electrodes and membranes are insufficient to improve the efficiency of MFC. The use of nanomaterials in the manufacture of the anode had a prominent effect in improving the performance in terms of increasing the surface area, increasing the transfer of electrons from the anode to the cathode, biocompatibility, and biofilm formation and improving the oxidation reactions of organic waste using bacteria. The use of nanomaterials in the manufacture of the cathode also showed the improvement of cathode reactions or oxygen reduction reactions (ORR). The PEM has a prominent role in separating the anode and the cathode in the MFC, transferring protons from the anode chamber to the cathode chamber while preventing the transfer of oxygen. Nanomaterials have been used in the manufacture of membrane components, which led to improving the chemical and physical properties of the membranes and increasing the transfer rates of protons, thus improving the performance and efficiency of MFC in generating electrical energy and improving wastewater treatment.

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“…Therefore, excess capital investment is required for the complete mineralization of these noxious contaminants from wastewater [15]. Owing to these bottlenecks, researchers are directing efforts towards the development of low-cost and ecofriendly green technologies for the remediation of heavy metals and radioactive compounds from wastewater [16]. In this veneration, photosynthetic aquatic macrophytes have emerged as promising biosorbents and hyperaccumulators of these pollutants [17].…”

Section: Introductionmentioning

confidence: 99%

Efficacious bioremediation of heavy metals and radionuclides from wastewater employing aquatic macro‐ and microphytes

Das

Ghangrekar

2022

J Basic Microbiol

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Cytotoxic, mutagenic, and carcinogenic contaminants, such as heavy metals and radionuclides, have become an alarming environmental concern globally, especially for developed and developing nations. Moreover, inefficient prevalent wastewater treatment technologies combined with increased industrial activity and modernization has led to increase in the concentration of toxic metals and radioactive components in the natural water bodies. However, for the improvement of ecosystem of rivers, lakes, and other water sources different physicochemical methods such as membrane filtration, reverse osmosis, activated carbon adsorption, electrocoagulation, and other electrochemical treatment are employed, which are uneconomical and insufficient for the complete abatement of these emerging pollutants. Therefore, the application of bioremediation employing aquatic macrophytes and microphytes have gained considerable importance owing to the benefits of cost-effectiveness, eco-friendly, and higher energy efficiency. Thus, the present review aims to enlighten the readers on the potential application of algae, cyanobacteria, plant, and other aquatic micro-and macrophytes for the elimination of carcinogenic metals and radioactive isotopes from wastewater. Additionally, the use of transgenic plants, genetically modified species, algal-bacterial symbiosis for the enhancement of removal efficiency of mutagenic contaminants are also highlighted. Furthermore, species selection based on robustness, mechanism of different pathways for heavy metal and radionuclide detoxification are elucidated in this review article.

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Microbial fuel cell for simultaneous removal of uranium (VI) and nitrate

Cited by 49 publications

References 48 publications

A Sustainable Approach for the Production of Green Energy With the Holistic Treatment of Wastewater Through Microbial Electrochemical Technologies: A Review

A Sustainable Approach for the Production of Green Energy With the Holistic Treatment of Wastewater Through Microbial Electrochemical Technologies: A Review

Applications of Nanomaterials in Microbial Fuel Cells: A Review

Efficacious bioremediation of heavy metals and radionuclides from wastewater employing aquatic macro‐ and microphytes

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