Simultaneous nitrification/denitrification and desulfurization of wastewater polluted with ammonium, COD and sulfide: effectiveness of a new up-flow vertical hybrid reactor

González-Blanco, G.; Casas-Reyes, A.; Velasco-Garduño, O.; Ruiz‐Gómez, María de Lourdes; Aguirre-Garrido, José Félix; Beristain-Cardoso, R.

doi:10.1007/s13205-021-02671-5

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Thiobacillus is the DMS-degrading organism, which increased as much as 27.3% and grew on DMS as a sole carbon source. Truepera with a sulfur-compound metabolic capability increased by 9.4% . Therefore, the enrichment of VOSC degradation bacteria in the MFC induced the higher pollutant-removal performance, and the electricity-generation ability of MFCs as presented in Figure was attributed to the higher abundance of Stenotrophomonas and Pseudomonas. , Besides, Candidatus Microthrix can convert complex carbon compounds to simple molecules and scavenge oxygen to overcome their inhibitions on electricity production .…”

Section: Results and Discussionmentioning

confidence: 97%

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

Feng

et al. 2021

Energy Fuels

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Dimethyl sulfide (DMS) emitted from the petrochemical industry is a typical volatile organic sulfur compound (VOSC) with poor solubility and odorous smell. A microbial fuel cell (MFC) is regarded as an appreciative method for simultaneous DMS degradation and electricity generation. In this work, for the first time, we developed an MFC system for DMS treatment. With an initial concentration of 95 mg L −1 , the DMS removal efficiency at the closed-circuit state was achieved as high as 89.5% within 40 h, which was 1.21 times higher than that at the open-circuit state. The maximum power density and current density were 0.237 mW m −2 and 2.644 mA m −2 , respectively. The dominant electrogenic bacteria in the MFC were Stenotrophomonas, Pseudomonas, and Candidatus Microthrix, and the DMS degraders included Thiobacillus, Truepera, and Candidatus Microthrix. Direct extracellular electron transfer was involved in the bioanode for DMS degradation according to the CV curves. Moreover, to overcome the toxicity of high-concentration DMS on microorganisms and enhance power generation, sodium acetate (NaAc) was added as a co-substrate, resulting in 52.5% increase in DMS degradation activity and a 16.5 times higher maximum output voltage. Overall, these findings may offer basic information for bioelectrochemical degradation of DMS and facilitate the application of MFCs in waste gas treatment.

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Section: Results and Discussionmentioning

confidence: 97%

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

Feng

et al. 2021

Energy Fuels

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“…Similarly, the Truepera genus that reached a maximum relative abundance of 5.8 % in phase VII has been related before to nitrogen removal via autotrophic denitrification (González-Blanco et al, 2021). Finally, despite not finding any OTU classified as anammox (anaerobic ammonium oxidation) bacteria (most common genera detected until now: Anammoxoglobus, Brocadia, Jettenia, Kuenenia, Scalindua and Anammoximicrobium (Guo et al, 2022)), the phylum Planctomycetota (Jetten et al, 2005;Xie et al, 2013) increased its relative abundance from 0.30 % (phase 0) to 2.3 % (phase VIII).…”

Section: Microbial Community Analysismentioning

confidence: 94%

Long-term biofiltration of gaseous N,N-dimethylformamide: Operational performance and microbial diversity analysis at different conditions

Pineda

Demeestere

Toledo

et al. 2023

Journal of Hazardous Materials

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“…A. maritima , from the Ardenticatenia class, also presents a wide range of physiologies, which include aerobic respiration (containing enzymes from complex I, II, III, and three oxygen reductases), iron reduction, and a complete denitrification pathway composed of nitrate reductase, nitrite reductase, nitric oxide reductase, and nitrous oxide reductase ( 123 ). These findings could enhance the role of Chloroflexota bacteria in nitrogen removal technologies in wastewater treatment plants and, to a broader extent, the coupling of nitrogen, sulfur, and carbon cycles to be used in multipurpose bioreactors, which is of utmost technological relevance ( 124 ).…”

Section: Prospective Biotechnological Applicationsmentioning

confidence: 99%

The biotechnological potential of the Chloroflexota phylum

Freches,

Fradinho

2024

Appl Environ Microbiol

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In the next decades, the increasing material and energetic demand to support population growth and higher standards of living will amplify the current pressures on ecosystems and will call for greater investments in infrastructures and modern technologies. A valid approach to overcome such future challenges is the employment of sustainable bio-based technologies that explore the metabolic richness of microorganisms. Collectively, the metabolic capabilities of Chloroflexota , spanning aerobic and anaerobic conditions, thermophilic adaptability, anoxygenic photosynthesis, and utilization of toxic compounds as electron acceptors, underscore the phylum’s resilience and ecological significance. These diverse metabolic strategies, driven by the interplay between temperature, oxygen availability, and energy metabolism, exemplify the complex adaptations that enabled Chloroflexota to colonize a wide range of ecological niches. In demonstrating the metabolic richness of the Chloroflexota phylum, specific members exemplify the diverse capabilities of these microorganisms: Chloroflexus aurantiacus showcases adaptability through its thermophilic and phototrophic growth, whereas members of the Anaerolineae class are known for their role in the degradation of complex organic compounds, contributing significantly to the carbon cycle in anaerobic environments, highlighting the phylum’s potential for biotechnological exploitation in varying environmental conditions. In this context, the metabolic diversity of Chloroflexota must be considered a promising asset for a large range of applications. Currently, this bacterial phylum is organized into eight classes possessing different metabolic strategies to survive and thrive in a wide variety of extreme environments. This review correlates the ecological role of Chloroflexota in such environments with the potential application of their metabolisms in biotechnological approaches.

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Simultaneous nitrification/denitrification and desulfurization of wastewater polluted with ammonium, COD and sulfide: effectiveness of a new up-flow vertical hybrid reactor

Cited by 5 publications

References 39 publications

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

Co-substrate-Assisted Dimethyl Sulfide Degradation and Electricity Generation in a Microbial Fuel Cell

Long-term biofiltration of gaseous N,N-dimethylformamide: Operational performance and microbial diversity analysis at different conditions

The biotechnological potential of the Chloroflexota phylum

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