scholarly journals Simultaneous removal of heavy metals and biodegradation of organic matter with sediment microbial fuel cells

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53433-53438 ◽  
Author(s):  
M. S. Wu ◽  
X. Xu ◽  
Q. Zhao ◽  
Z. Y. Wang
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Simultaneous Removal ◽  
Removal Of Heavy Metals

To in situ remediate rivers polluted by organic matter and heavy metals, lab-scale sediment microbial fuel cells (SMFCs) were operated under different conditions.

scholarly journals Positive effects of concomitant heavy metals and their reduzates on hexavalent chromium removal in microbial fuel cells

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15107-15115 ◽  
Author(s):  
Xiayuan Wu ◽  
Chunrui Li ◽  
Zuopeng Lv ◽  
Xiaowei Zhou ◽  
Zixuan Chen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fuel Cells ◽  
Hexavalent Chromium ◽  
Microbial Fuel Cells ◽  
Chromium Removal ◽  
Positive Effects ◽  
Bioelectricity Generation ◽  
Co Reduction

The cooperative cathode modification by BioAu from Au(iii) and in situ Cu(ii) co-reduction enhanced Cr(vi) removal and bioelectricity generation in MFCs.

scholarly journals Bioremediation of Pollutants and Sustainable Energy Production through Bacterial Activities in Microbial Fuel Cells: An Overview

2021 ◽  
Vol 33 (2) ◽  
pp. 253-265
Author(s):  
ROZINA KAKAR ◽  
AMIRUL-AL-ASHRAF ABDULLAH ◽  
MOHD RASHID ◽  
RABIA TASADUQ HUSSAIN ◽  
AMIRA SURIATY YAAKOP ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Electrical Energy ◽  
Electricity Production ◽  
Organic Substrates ◽  
Electron Transfer Mechanism ◽  
Removal Of Heavy Metals ◽  
Sustainable Electricity

Electrical energy generation can be achieved in microbial fuel cells (MFCs) through the catalytic action of microorganisms which can oxidize organic matter and convert it into a biofilm. In MFCs, the exoelectrogens play a crucial role. MFCs is eco-friendly promising technology that produces electricity from various organic substrates. It is a novel and environmentally friendly approach for bioremediation and sustainable electricity production. The fact that heavy metals contributing adversely to the environmental pollution thus the microbial fuel cell technology has a solution for this as well, performing the removal and recovery of heavy metals by using both single and doublechambered MFCs. Many studies show that the new strains of microbes can produce power densities individually as high as strains from mixed communities. However, the implementation of this technology is just limited to the laboratory scale because of a few challenges like low efficiencies, low production rates. This review article focuses an introduction about the role and mechanism of different microorganisms towards energy production, biofilm formation, high power producing microbes inside the microorganisms, the electron transfer mechanism to the electrodes and vice-versa and the removal of heavy metals.

The high enrichment of Geobacter by TiN nanoarray anode catalyst for efficient microbial fuel cells

2021 ◽  
Vol 9 (12) ◽  
pp. 7726-7735
Author(s):  
Da Liu ◽  
Weicheng Huang ◽  
Qinghuan Chang ◽  
Lu Zhang ◽  
Ruiwen Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Hierarchical Structure ◽  
Microbial Fuel Cells ◽  
Dft Calculation ◽  
Experimental Results ◽  
Carbon Cloth ◽  
Anode Catalyst ◽  
High Enrichment

TiN nanoarrays, in situ grown on carbon cloth gather 97.2% of the model exoelectrogen Geobacter, greatly enhancing the MFCs' performance. The experimental results and DFT calculation certify the importance of the micro–nano-hierarchical structure.

scholarly journals Synthesizing developments in the usage of solid organic matter in microbial fuel cells: a review

2021 ◽  
pp. 100140
Author(s):  
Shuyao Wang ◽  
Ademola Adekunle ◽  
Boris Tartakovsky ◽  
Vijaya Raghavan
Keyword(s):  
Organic Matter ◽  
Fuel Cells ◽  
Microbial Fuel Cells

Searching for sustainability in organic matter and nitrogen removal by integrating constructed wetlands and microbial fuel cells

2022 ◽  
pp. 283-296
Author(s):  
Daniela López ◽  
Thaís González ◽  
Gloria Gómez ◽  
Juan Pablo Miranda ◽  
José Contreras ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fuel Cells ◽  
Constructed Wetlands ◽  
Nitrogen Removal ◽  
Microbial Fuel Cells

scholarly journals Scaling up Microbial Fuel Cells for Treating Swine Wastewater

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1803 ◽  
Author(s):  
Yuko Goto ◽  
Naoko Yoshida
Keyword(s):  
Organic Matter ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Removal Rate ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Swine Wastewater ◽  
Flow Mode ◽  
Carbon Cloth ◽  
Simultaneous Generation

Conventional aerobic treatment of swine wastewater, which generally contains 4500–8200 mg L−1 of organic matter, is energy-consuming. The aim of this study was to assess the application of scaled-up microbial fuel cells (MFCs) with different capacities (i.e., 1.5 L, 12 L, and 100 L) for removing organic matter from swine wastewater. The MFCs were single-chambered, consisting of an anode of microbially reduced graphene oxide (rGO) and an air-cathode of platinum-coated carbon cloth. The MFCs were polarized via an external resistance of 3–10 Ω for 40 days for the 1.5 L-MFC and 120 days for the 12L- and 100 L-MFC. The MFCs were operated in continuous flow mode (hydraulic retention time: 3–5 days). The 100 L-MFC achieved an average chemical oxygen demand (COD) removal efficiency of 52%, which corresponded to a COD removal rate of 530 mg L−1 d−1. Moreover, the 100 L-MFC showed an average and maximum electricity generation of 0.6 and 2.2 Wh m−3, respectively. Our findings suggest that MFCs can effectively be used for swine wastewater treatment coupled with the simultaneous generation of electricity.

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