Biofilm formation in xenobiotic-degrading microorganisms

Critical Reviews in Biotechnology, Journal Year: 2022, Volume and Issue: 43(8), P. 1129 - 1149

Published: Sept. 28, 2022

The increased presence of xenobiotics affects living organisms and the environment at large on a global scale. Microbial degradation is effective for removal from ecosystem. In natural habitats, biofilms are formed by single or multiple populations attached to biotic/abiotic surfaces interfaces. attachment microbial cells these possible via matrix extracellular polymeric substances (EPSs). However, molecular machinery underlying development differs depending species. Biofilms act as biocatalysts degrade xenobiotic compounds, thereby removing them environment. Quorum sensing (QS) helps with biofilm formation linked in contaminated sites. To date, scant information available about biofilm-mediated toxic chemicals Therefore, we review novel insights into impact contamination remediation, regulation sites, implications large-scale compound treatment.

Language: Английский

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Unravelling ciprofloxacin removal in a nitrifying moving bed biofilm reactor: Biodegradation mechanisms and pathways

Chemosphere, Journal Year: 2023, Volume and Issue: 320, P. 138099 - 138099

Published: Feb. 8, 2023

Language: Английский

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Occurrence and potential harms of organochlorine pesticides (OCPs) in environment and their removal by periphyton

Critical Reviews in Environmental Science and Technology, Journal Year: 2023, Volume and Issue: 53(22), P. 1957 - 1981

Published: April 8, 2023

Organochlorine pesticides (OCPs) have been widely used around the world due to their high-efficiency and broad-spectrum insecticidal effects. However, they pose a severe threat ecosystems human health easy bioaccumulation high toxicity. Periphyton is ubiquitous in submerged substrates surface. It plays crucial role carbon, nutrients elements cycling contaminants transformation environment. can remove OCPs through bioadsorption, biodegradation, which alters fate of This review presents comprehensive summary occurrence, global cycle, potential harm environment, removal by periphyton. The residual detected frequently different environmental medias such as water, soil, atmosphere, sediment, organisms. Their depending on physicochemical properties exposure route. main compositions functions periphyton summarized. Moreover, artificial cultivation methods laboratory in-situ field are compared. In addition, mechanisms periphyton-mediated factors impacting also discussed. could self-regulate its biological communities adapt then regenerate new species degrade OCPs. Finally, prospect future studies proposed. provides systematic introduction current knowledge

Language: Английский

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Cold‐active microbial enzymes and their biotechnological applications

Microbial Biotechnology, Journal Year: 2024, Volume and Issue: 17(4)

Published: April 1, 2024

Microorganisms known as psychrophiles/psychrotrophs, which survive in cold climates, constitute majority of the biosphere on Earth. Their capability to produce cold-active enzymes along with other distinguishing characteristics allows them environments. Due relative ease large-scale production compared from plants and animals, commercial uses microbial enzyme are alluring. The ocean depths, polar, alpine regions, make up over 85% planet, inhabited ecosystems. Microbes living these regions important for their metabolic contribution ecosphere well enzymes, may have potential industrial applications. Cold-adapted microorganisms a possible source that high catalytic efficacy at low moderate temperatures homologous mesophilic not active. Cold-active can be used variety biotechnological processes, including food processing, additives detergent industries, textile industry, waste-water treatment, biopulping, environmental bioremediation biotransformation, molecular biology applications great energy savings. Genetically manipulated strains suitable producing particular would crucial advantage cold-adapted will probably lead greater annual market than thermo-stable near future. This review includes latest updates various

Language: Английский

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Optimization of moving bed membrane bioreactor process for improved water and nutrient recovery from domestic wastewater

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106934 - 106934

Published: Jan. 5, 2025

Language: Английский

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Biofilm formation and extracellular polymeric substance (EPS) production by Bacillus haynesii and influence of hexavalent chromium

Bioresource Technology, Journal Year: 2022, Volume and Issue: 352, P. 127109 - 127109

Published: April 1, 2022

Language: Английский

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Adaptation of anammox process for nitrogen removal from acidic nitritation effluent in a low pH moving bed biofilm reactor

Water Research, Journal Year: 2023, Volume and Issue: 243, P. 120370 - 120370

Published: July 18, 2023

Acidic partial nitritation (PN) has emerged to be a promisingly stable process in wastewater treatment, which can simultaneously achieve nitrite accumulation and about half of ammonium reduction. However, directly applying anaerobic oxidation (anammox) treat the acidic PN effluent (pH 4-5) is susceptible inhibition anammox bacteria. Here, this study demonstrated adaptation pH moving bed biofilm reactor (MBBR). By feeding laboratory-scale MBBR with = 4.6 ± 0.2), an was self-sustained range 5 - 6. Yet, high total nitrogen removal efficiency over 80% at practical loading rate up 149.7 3.9 mg N/L/d achieved. Comprehensive microbial assessment, including amplicon sequencing, metagenomics, cryosection-FISH, qPCR, identified that Candidatus Brocadia, close known neutrophilic members, dominant Anammox bacteria were found present inner layer thick biofilms but barely surface thin biofilms. Results from batch tests also showed activity could maintained when subjected concentration 10 N/L, whereas completely inhibited after disturbing structure. These results collectively indicate enriched not inherently acid-tolerant. Instead, achieved performance under condition likely due stratification protection. This result highlights configuration as useful solution address effluent, suggests may play critical role protecting many nature environments.

Language: Английский

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Effects of successional sulfadiazine exposure on biofilm in moving bed biofilm reactor: Secretion of extracellular polymeric substances, community activity and functional gene expression

Bioresource Technology, Journal Year: 2023, Volume and Issue: 380, P. 129092 - 129092

Published: April 25, 2023

Language: Английский

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Recovery strategies and mechanisms of anammox reaction following inhibition by environmental factors: A review

Environmental Research, Journal Year: 2024, Volume and Issue: 252, P. 118824 - 118824

Published: April 6, 2024

Language: Английский

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Biofilm formation and microbial interactions in moving bed-biofilm reactors treating wastewater containing pharmaceuticals and personal care products: A review

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 368, P. 122166 - 122166

Published: Aug. 17, 2024

Language: Английский

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