The application of the photo-electro-Fenton process in the treatment of wastewater reduces the abundance of genes associated with pathogenicity factors, antibiotic resistance, and metabolism: A metagenomic analysis.

Echeverry-Gallego, Rodrigo A.; Espinosa-Barrera, Paula Andrea; Delgado-Vargas, Carlos Andrés; Vanegas, Javier; Clavijo-Buriticá, Diana Carolina; Martínez-Pachón, Diana; Moncayo-Lasso, Alejandro

doi:10.1016/j.jece.2023.109937

Cited by 6 publications

(4 citation statements)

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“…In different studies carried out, where the cellulose of E. crassipes has been physicochemically characterized, the high presence of cellulose and hemicellulose in its chemical composition has been demonstrated, as in the case of [39,40]. The presence of these two polysaccharides favors the process of metal adsorption and the production of biofuels [44][45][46][47]. The presence of lignin makes hydrolysis necessary before the biohydrogen production process [15][16][17].…”

Section: Results Of Characterization Chemistrymentioning

confidence: 99%

“…The authors of [44] utilized the E. crassipes biomass to produce biohydrogen, yielding obtaining a yield of 55 mL H 2 /g. Variability was observed in the substrates used.…”

Section: Production Of Biohidrogenmentioning

confidence: 99%

“…These bacteria thrive in the anaerobic digestion processes that occur in the treatment plants, creating an ideal environment for their growth [44][45][46][47][48][49][50]. The fermentation byproducts are acetic acid (with a theoretical maximum of 4 mol H 2 /mol glucose) and butyric acid (with a theoretical maximum of 3.4 mol H 2 /mol glucose).…”

Section: Introductionmentioning

confidence: 99%

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The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Sayago

2024

Polymers

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Water scarcity is a significant global issue caused by the prolonged disregard and unsustainable management of this essential resource by both public and private bodies. The dependence on fossil fuels further exacerbates society’s bleak environmental conditions. Therefore, it is crucial to explore alternative solutions to preserve our nation’s water resources properly and promote the production of biofuels. Research into the utilization of E. crassipes to remove heavy metals and generate biofuels is extensive. The combination of these two lines of inquiry presents an excellent opportunity to achieve sustainable development goals. This study aims to develop a sustainable wastewater treatment system and generate biohydrogen from dry, pulverized E. crassipes biomass. A treatment system was implemented to treat 1 L of industrial waste. The interconnected compartment system was built by utilizing recycled PET bottles to generate biohydrogen by reusing the feedstock for the treatment process. The production of biological hydrogen through dark fermentation, using biomass containing heavy metals as a biohydrogen source, was studied. Cr (VI) and Pb (II) levels had a low impact on hydrogen production. The uncontaminated biomass of E. crassipes displayed a significantly higher hydrogen yield (81.7 mL H2/g glucose). The presence of Cr (IV) in E. crassipes leads to a decrease in biohydrogen yield by 14%, and the presence of Pb (II) in E. crassipes leads to a decrease in biohydrogen yield of 26%. This work proposes a strategy that utilizes green technologies to recover and utilize contaminated water. Additionally, it enables the production of bioenergy with high efficiency, indirectly reducing greenhouse gases. This strategy aligns with international programs for the development of a circular economy.

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Section: Results Of Characterization Chemistrymentioning

confidence: 99%

“…The authors of [44] utilized the E. crassipes biomass to produce biohydrogen, yielding obtaining a yield of 55 mL H 2 /g. Variability was observed in the substrates used.…”

Section: Production Of Biohidrogenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Sayago

2024

Polymers

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“…As a result, the electro-Fenton technique is not popular in practice. Recently, photoelectron-Fenton (PEF) technology has attracted attention (Echeverry-Gallego et al, 2023) due to its advantages of sunlight use potential, outstanding mineralization rate, and significantly lower energy consumption than photocatalysis and electro-Fenton processes (Yang Wang et al, 2022). There are many combinations of photocatalysis and electro-Fenton processes (Divyapriya et al, 2022), and photocatalytic fuel cell (PFC) systems (Thor et al, 2021a) have attracted much attention for their excellent efficiency and low power consumption.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes

Ma,

Li,

Yang

et al. 2024

Water Environment Research

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In this study, a novel photocatalytic fuel cell electro‐Fenton (PFC‐EF) system was constructed using g‐C3N4@N‐TNA and Ag/CNT@CF as electrodes. The composition, structure, and morphology of the electrodes were obtained. The g‐C3N4@N‐TNA, with its 2.37 eV band gap and 100 mV photovoltage, has excellent excitation properties for sunlight. Ag/CNT@CF with abundant pores, CNT 3D nanostructures, and Ag crystals on the surface can improve the electro‐Fenton efficiency. A comparative study of rhodamine B (RhB) degradation was performed in this system. It has been shown that electric fields can greatly enhance the oxidation efficiency of both anode photocatalysis and the cathode electro‐Fenton process. Under optimal conditions, RhB can be completely removed by the photoelectro‐Fenton (PEF) process. The energy consumption of the PEF system was obtained. The electrical energy per order (EE/O) is only 9.2 kWh/m3·order, which is only 16.5% of EF and 2.2% of PFC‐EF system. The mineralization current efficiency (MCE) of the PEF system reached 93.3% for a 2‐h reaction. Therefore, the PEF system has the advantage of saving energy. The kinetic analysis shows that the RhB removal follows a first‐order kinetic law, and the reaction rate constant reaches 0.1304 min−1, which is approximately 5.2 times larger and 4.0 times larger than the electro‐Fenton and PFC‐EF processes, respectively. RhB removal is a coupling multimechanism in which an electric field enhances photoelectron migration, Ag loading improves H2O2 generation, UV light coupled with H2O2 promotes hydroxyl radical (٠OH) generation, and the nanoconfinement effect of CNTs promotes ٠OH accumulation in favor of RhB degradation.Practitioner Points Novel efficiency photocatalytic fuel cell electro‐Fenton system was constructed. The electric field greatly enhances the photocatalytic fuel cell electro‐Fenton system. Multiple coupling mechanisms of UV/H2O2, UV/Fenton and photo‐electro‐Fenton have been revealed.

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Systematic analysis of the scientific-technological production on the use of the UV, H2O2, and/or Cl2 systems in the elimination of bacteria and associated antibiotic resistance genes

Espinosa-Barrera,

Gómez-Gómez,

Vanegas

et al. 2024

Environ Sci Pollut Res

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This study presents a systematic review of the scientific and technological production related to the use of systems based on UV, H2O2, and Cl2 for the elimination of antibiotic-resistant bacteria (ARB) and genes associated with antibiotic resistance (ARGs). Using the Pro Know-C (Knowledge Development Process-Constructivist) methodology, a portfolio was created and analyzed that includes 19 articles and 18 patents published between 2011 and 2022. The results show a greater scientific-technological production in UV irradiation systems (8 articles and 5 patents) and the binary combination UV/H2O2 (9 articles and 4 patents). It was emphasized that UV irradiation alone focuses mainly on the removal of ARB, while the addition of H2O2 or Cl2, either individually or in binary combinations with UV, enhances the removal of ARB and ARG. The need for further research on the UV/H2O2/Cl2 system is emphasized, as gaps in the scientific-technological production of this system (0 articles and 2 patents), especially in its electrochemically assisted implementation, have been identified. Despite the gaps identified, there are promising prospects for the use of combined electrochemically assisted UV/H2O2/Cl2 disinfection systems. This is demonstrated by the effective removal of a wide range of contaminants, including ARB, fungi, and viruses, as well as microorganisms resistant to conventional disinfectants, while reducing the formation of toxic by-products.

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The application of the photo-electro-Fenton process in the treatment of wastewater reduces the abundance of genes associated with pathogenicity factors, antibiotic resistance, and metabolism: A metagenomic analysis.

Cited by 6 publications

References 70 publications

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes

Systematic analysis of the scientific-technological production on the use of the UV, H2O2, and/or Cl2 systems in the elimination of bacteria and associated antibiotic resistance genes

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The application of the photo-electro-Fenton process in the treatment of wastewater reduces the abundance of genes associated with pathogenicity factors, antibiotic resistance, and metabolism: A metagenomic analysis.

Cited by 6 publications

References 70 publications

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

The Design of a Sustainable Industrial Wastewater Treatment System and The Generation of Biohydrogen from E. crassipes

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C3N4@N‐TiO2 and Ag/CNT@CF as electrodes

Systematic analysis of the scientific-technological production on the use of the UV, H2O2, and/or Cl2 systems in the elimination of bacteria and associated antibiotic resistance genes

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Product

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About

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes