Blending of microbial inocula: An effective strategy for performance enhancement of clayware Biophotovoltaics microbial fuel cells

Gunaseelan, K.; Jadhav, Dipak A.; Gajalakshmi, S.; Pant, Deepak

doi:10.1016/j.biortech.2020.124564

Cited by 40 publications

(7 citation statements)

References 43 publications

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“…Microbial blend to enhance COD removal and methane production performances in bioelectrochemical systems was exploited by Gunaseelan et al [ 107 ]. Mixing anoxygenic photosynthetic bacteria-rich effective microbes with UASB sludge, they obtained higher performances thanks to the synergetic effects of a very heterogeneous microbiota with 28.4% of anoxic photosynthetic bacteria (specifically, R. palustris and R. sphaeroides ) and other microorganisms (71.6%).…”

Section: Resultsmentioning

confidence: 99%

“…Mixing anoxygenic photosynthetic bacteria-rich effective microbes with UASB sludge, they obtained higher performances thanks to the synergetic effects of a very heterogeneous microbiota with 28.4% of anoxic photosynthetic bacteria (specifically, R. palustris and R. sphaeroides ) and other microorganisms (71.6%). According to their results, this strengthens the secretion of metabolic intermediates, which stimulate the electron transfer mechanism in the bioelectrochemical system enhancing the performance of the process [ 107 ].…”

Section: Resultsmentioning

confidence: 99%

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Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Collivignarelli

Abbà

Caccamo

et al. 2021

IJERPH

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The interest in research on up-flow anaerobic sludge blanket (UASB) reactors is growing. The meta-analysis of bibliometric data highlighted the growing interest in four diverse topics: (i) energy recovery production; (ii) combination with other treatments; (iii) the study of processes for the removal of specific pollutants and, (iv) characterization of microbial community and granular sludge composition. In particular, the papers published in the first 6 months of 2021 on this process were selected and critically reviewed to highlight and discuss the results, the gaps in the literature and possible ideas for future research. Although the state of research on UASB is to be considered advanced, there are still several points that will be developed in future research such as the consolidation of the results obtained on a semi-industrial or real scale, the use of real matrices instead of synthetic ones and a more in-depth study of the effect of substances such as antibiotics on the microbiota and microbiome of UASB granular biomass. To date, few and conflicting data about the environmental footprint of UASB are available and therefore other studies on this topic are strongly suggested.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Collivignarelli

Abbà

Caccamo

et al. 2021

IJERPH

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“…The results may be attributed to an additional nonradiative decay channel opened through the electron transfer between Ag 3 PO 4 and W 2 N 3 -NV, which efficiently facilitated the separation of photogenerated electrons and holes. [46,47] Moreover, the photocurrent-time response was measured to reflect the photogenerated carrier transportation (Figure 7e). It could be clearly observed that the photocurrent density of Ag 3 PO 4 @ W 2 N 3 -NV was much higher than that of pure Ag 3 PO 4 , which also demonstrated that the photogenerated electrons and holes pairs could be effectively separated after the formation of heterojunction.…”

Section: Characterization Of Materialsmentioning

confidence: 99%

Interfacial Charge Transfer between Silver Phosphate and W₂N₃ Induced by Nitrogen Vacancies Enhances Removal of β‐Lactam Antibiotics

Lin

Yang

Niu

et al. 2021

Adv Funct Materials

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Constructing heterojunctions has been demonstrated as an important approach to improve the catalytic performance of photocatalysts, but how to regulate the transfer and separation of photogenerated carriers at the interface is still a great challenge. Herein, W2N3‐NV, a two‐dimensional transition metal nitride containing nitrogen vacancies, is synthesized by a molten salt‐assisted atmosphere calcination method. A novel composite photocatalyst Ag3PO4@W2N3‐NV with good photocatalytic activity and photostability is prepared for the first time and applied to the efficient removal of β‐lactam antibiotics. The composite catalyst shows much superior photocatalytic degradation performance of penicillin and amoxicillin, and the apparent rate constant of which is 77.7 and 42.9 times than that of pure Ag3PO4, respectively. Experimental results and density functional theory calculations confirm that the presence of nitrogen vacancies can drive the formation of defects and dangling bonds on the W2N3‐NV surface, which make it easy to combine with Ag3PO4 and form new chemical bonds at the interface. The WO chemical bonds formed at the interface provide a fast transfer channel for the interfacial photogenerated charge, resulting in the boosted carriers transfer and separation ability of Ag3PO4@W2N3‐NV composite. This study provides a new strategy for the interface engineering of highly efficient heterogeneous photocatalysts.

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“…Because of their synergistic behavior in the microbial population metabolism, they have shown a significantly higher level of biodegradation and mineralization by the consortium of microbes in breaking down the synthetic dyes compared to a monoculture of microbes. The bacterial strains in the mixed culture treat various positions of the aromatic ring to degrade the dye's molecular structure, and the produced metabolites are further destroyed by the remaining strains [47][48][49][50][51][52][53][54][55][56][57][58][59]. Hence, there is symbiotic effect instead of an antagonism effect as both species use different carbon sources and there might be no product inhibition [60][61][62] because the dye as a substrate was degrading continuously with the simultaneous production of electricity.…”

Section: Discussionmentioning

confidence: 99%

Microbial Electrochemical Treatment of Methyl Red Dye Degradation Using Co-Culture Method

Sharma

Pandit

Mathuriya

et al. 2022

Water

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Methyl red, a synthetic azo dye, was reported for not only being mutagenic but also its persistence has severe consequences on human health, such as cancer, alongside detrimental environmental effects. In the present study, the Pseudomonas putida OsEnB_HZB_G20 strain was isolated from the soil sample to study the catalytic activity for the degradation of methyl red dye. Another isolated strain, the Pseudomonas aeruginosa PA 1_NCHU strain was used as an electroactive anodophile and mixed with the Pseudomonas putida OsEnB_HZB_G20 strain to see the effect of co-culturing on the power generation in single-chambered microbial fuel cells (MFCs). The Pseudomonas putida OsEnB_HZB_G20 and Pseudomonas aeruginosa PA 1_NCHU strains were used as co-culture inoculum in a 1:1 ratio in MFCs. This work uses isolated bacterial strains in a co-culture to treat wastewater with varying methyl red dye concentrations and anolyte pH to investigate its effect on power output in MFCs. This co-culture produced up to 7.3 W/m3 of power density with a 250 mgL−1 of dye concentration, along with 95% decolorization, indicating that the symbiotic relationship between these bacteria resulted in improved MFC performance simultaneous to dye degradation. Furthermore, the co-culture of Pseudomonas putida and Pseudomonas aeruginosa in a 1:1 ratio demonstrated improved power generation in MFCs at an optimized pH of 7.

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Blending of microbial inocula: An effective strategy for performance enhancement of clayware Biophotovoltaics microbial fuel cells

Cited by 40 publications

References 43 publications

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Interfacial Charge Transfer between Silver Phosphate and W₂N₃ Induced by Nitrogen Vacancies Enhances Removal of β‐Lactam Antibiotics

Microbial Electrochemical Treatment of Methyl Red Dye Degradation Using Co-Culture Method

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Blending of microbial inocula: An effective strategy for performance enhancement of clayware Biophotovoltaics microbial fuel cells

Cited by 40 publications

References 43 publications

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Applications of Up-Flow Anaerobic Sludge Blanket (UASB) and Characteristics of Its Microbial Community: A Review of Bibliometric Trend and Recent Findings

Interfacial Charge Transfer between Silver Phosphate and W2N3 Induced by Nitrogen Vacancies Enhances Removal of β‐Lactam Antibiotics

Microbial Electrochemical Treatment of Methyl Red Dye Degradation Using Co-Culture Method

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Interfacial Charge Transfer between Silver Phosphate and W₂N₃ Induced by Nitrogen Vacancies Enhances Removal of β‐Lactam Antibiotics