Effect of cathodic culture on wastewater treatment and power generation in a photosynthetic sediment microbial fuel cell (SMFC): Canna indica v/s Chlorella vulgaris

Sharma, Arti; Gajbhiye, Sanjana; Chauhan, Sweta; Chhabra, Meenu

doi:10.1016/j.biortech.2021.125645

Cited by 26 publications

(15 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unidentified_Trebouxiophyceae are members of the phylum Chlorophyta while Telotrochidium are members of the phylum Ciliophora. The presence of green algae in the cathode contributed to the production of oxygen, and the algae can increase the pH of the culture medium ( Sharma et al, 2021 ).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A revolving algae biofilm based photosynthetic microbial fuel cell for simultaneous energy recovery, pollutants removal, and algae production

Zhang

Yan

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

Photosynthetic microbial fuel cell (PMFC) based on algal cathode can integrate of wastewater treatment with microalgal biomass production. However, both the traditional suspended algae and the immobilized algae cathode systems have the problems of high cost caused by Pt catalyst and ion-exchange membrane. In this work, a new equipment for membrane-free PMFC is reported based on the optimization of the most expensive MFC components: the separator and the cathode. Using a revolving algae-bacteria biofilm cathode in a photosynthetic membrane-free microbial fuel cell (RAB-MFC) can obtain pollutants removal and algal biomass production as well as electrons generation. The highest chemical oxygen demand (COD) removal rates of the anode and cathode chambers reached 93.5 ± 2.6% and 95.8% ± 0.8%, respectively. The ammonia removal efficiency in anode and cathode chambers was 91.1 ± 1.3% and 98.0 ± 0.6%, respectively, corresponding to an ammonia removal rate of 0.92 ± 0.02 mg/L/h. The maximum current density and power density were 136.1 mA/m2 and 33.1 mW/m2. The average biomass production of algae biofilm was higher than 30 g/m2. The 18S rDNA sequencing analysis the eukaryotic community and revealed high operational taxonomic units (OTUs) of Chlorophyta (44.43%) was dominant phyla with low COD level, while Ciliophora (54.36%) replaced Chlorophyta as the dominant phyla when COD increased. 16S rDNA high-throughput sequencing revealed that biofilms on the cathode contained a variety of prokaryote taxa, including Proteobacteria, Bacteroidota, Firmicutes, while there was only 0.23–0.26% photosynthesizing prokaryote found in the cathode biofilm. Collectively, this work demonstrated that RAB can be used as a bio-cathode in PMFC for pollutants removal from wastewater as well as electricity generation.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The presence of green algae in the cathode 10.3389/fmicb. 2022.990807 contributed to the production of oxygen, and the algae can increase the pH of the culture medium (Sharma et al, 2021).…”

Section: Variation In the Eukaryota Community Compositionmentioning

confidence: 99%

A revolving algae biofilm based photosynthetic microbial fuel cell for simultaneous energy recovery, pollutants removal, and algae production

Zhang

Yan

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Recently, sediment microbial fuel cells (SMFCs) have also emerged as a novel technology to treat sedimental wastes. Sharma et al (2021), compared two SMFCs, having plant and microalgae in the cathode chamber. The algae-based SMFC performed better in terms of COD, phosphate and nitrate removal and the algae biomass productivity of 0.031 Kg/m 3 /d was attained (Sharma et al, 2021).…”

Section: Scaled-up Studies On Algae-assisted Mfcsmentioning

confidence: 99%

“…Sharma et al (2021), compared two SMFCs, having plant and microalgae in the cathode chamber. The algae-based SMFC performed better in terms of COD, phosphate and nitrate removal and the algae biomass productivity of 0.031 Kg/m 3 /d was attained (Sharma et al, 2021). Similarly, in another study involving SMFC, a power density of 5.17 W/m 3 was obtained using Chlorella vulgaris at the cathode (Song et al, 2020).…”

Section: Scaled-up Studies On Algae-assisted Mfcsmentioning

confidence: 99%

Integration of third generation biofuels with bio-electrochemical systems: Current status and future perspective

2023

Self Cite

View full text Add to dashboard Cite

Biofuels hold particular promise as these can replace fossil fuels. Algae, in particular, are envisioned as a sustainable source of third-generation biofuels. Algae also produce several low volume high-value products, which enhance their prospects of use in a biorefinery. Bio-electrochemical systems such as microbial fuel cell (MFC) can be used for algae cultivation and bioelectricity production. MFCs find applications in wastewater treatment, CO2 sequestration, heavy metal removal and bio-remediation. Oxidation of electron donor by microbial catalysts in the anodic chamber gives electrons (reducing the anode), CO2, and electrical energy. The electron acceptor at the cathode can be oxygen/NO3-/NO2-/metal ions. However, the need for a continuous supply of terminal electron acceptor in the cathode can be eliminated by growing algae in the cathodic chamber, as they produce enough oxygen through photosynthesis. On the other hand, conventional algae cultivation systems require periodic oxygen quenching, which involves further energy consumption and adds cost to the process. Therefore, the integration of algae cultivation and MFC technology can eliminate the need of oxygen quenching and external aeration in the MFC system and thus make the overall process sustainable and a net energy producer. In addition to this, the CO2 gas produced in the anodic chamber can promote the algal growth in the cathodic chamber. Hence, the energy and cost invested for CO2 transportation in an open pond system can be saved. In this context, the present review outlines the bottlenecks of first- and second-generation biofuels along with the conventional algae cultivation systems such as open ponds and photobioreactors. Furthermore, it discusses about the process sustainability and efficiency of integrating algae cultivation with MFC technology in detail.

show abstract

“…That is, there is aerobic degradation on the surface, eliminating COD, and anaerobic degradation at the bottom, eliminating COD and generating electricity [33].…”

Section: B Construction Of the Microbial Fuel Cellsmentioning

confidence: 99%

Electricity generation and wastewater treatment using microbial fuel cells with graphite and aluminum electrodes

QuiÑones¹,

Coronado²,

Leon³

et al. 2022

Proceedings of the 2nd LACCEI International Multiconference on Entrepreneurship, Innovation and Regional Development (LEIRD 202

View full text Add to dashboard Cite

A microbial fuel cell (MFC) is a system that can integrate electricity generation and, at the same time, contribute to decontaminating wastewater, becoming an eco-friendly technology with the environment. In this research, microbial fuel cells with graphite and aluminum electrodes were used at different sizes: 9, 25 and 64 cm 2 , and a wastewater sample obtained from a rural location in Peru was used as substrate. The MFCs parameters of voltage, current and conductivity were monitored for 12 days, for the generation of electricity; and the parameters of Chemical Oxygen Demand (COD), Thermotolerant Coliforms, Turbidity and pH, for wastewater treatment. The MFCs with electrodes of 64 cm 2 were the ones that had the highest efficiency in the production of electricity, because they generated higher voltage, current and conductivitythroughout the days evaluated, with peaks of 0.22 V, 0.08 mA and 1.05 mS/cm, respectively. Likewise, a reduction in the content of COD, Thermotolerant Coliforms and Turbidity of the substrate used (70, 73 and 36%) was achieved, while the pH remained slightly stable, with values from 7.39 to 6.49 during the days evaluated. The MFCs are a promising approach to a sustainable future in which energy can be generated from the use of household wastewater, while simultaneously treating these effluents.

show abstract

Effect of cathodic culture on wastewater treatment and power generation in a photosynthetic sediment microbial fuel cell (SMFC): Canna indica v/s Chlorella vulgaris

Cited by 26 publications

References 40 publications

A revolving algae biofilm based photosynthetic microbial fuel cell for simultaneous energy recovery, pollutants removal, and algae production

A revolving algae biofilm based photosynthetic microbial fuel cell for simultaneous energy recovery, pollutants removal, and algae production

Integration of third generation biofuels with bio-electrochemical systems: Current status and future perspective

Electricity generation and wastewater treatment using microbial fuel cells with graphite and aluminum electrodes

Contact Info

Product

Resources

About