Environmental Arsenic and Selenium Contamination and Approaches Towards Its Bioremediation Through the Exploration of Microbial Adaptations: A Review

Paul, Tanmoy; Saha, Nimai Chandra

doi:10.1016/s1002-0160(19)60829-5

Cited by 38 publications

(22 citation statements)

References 129 publications

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“…The microorganisms can either be used indigenously or be isolated from other resources at the polluted site [ 44 , 45 ]. Microorganisms which are involved in biodegradation are shown in Table 2 , including the following examples: Acinetobacter , Actinobactera , Alcaligenes , Arthrobacter , Bacillins , Beijerinckia , Flavobacterium , Methylosinus , Mycobacterium , Mycococcus , Nitrosomonas , Nocardia , Xanthobacter , Penicillium , Phanerochaete , Pseudomonas , Rhizoctonia , Trametes , and Serratia [ 46 – 66 ]. Most bioremediation processes are completed under aerobic conditions, but running a system under anaerobic conditions may permit microbial organisms to degrade otherwise recalcitrant molecules [ 44 ].…”

Section: Role Of Microorganismsmentioning

confidence: 99%

Advances in Heavy Metal Bioremediation: An Overview

Sayqal

Ahmed

2021

Applied Bionics and Biomechanics

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The pollution of toxic heavy metals is considered one of the most important environmental issues which has accelerated dramatically due to changing industrial activities. This review focuses on the most common methods, strategies, and biological approaches of heavy metal bioremediation. Also, it provides a general overview of the role of microorganisms in the bioremediation of heavy metals in polluted environments. Advanced methods of heavy metal remediation include physicochemical and biological methods; the latter can be further classified into in situ and ex situ bioremediation. The in situ process includes bioventing, biosparging, biostimulation, bioaugmentation, and phytoremediation. Ex situ bioremediation includes land farming, composting, biopiles, and bioreactors. Bioremediation uses naturally occurring microorganisms such as Pseudomonas, Sphingomonas, Rhodococcus, Alcaligenes, and Mycobacterium. Generally, bioremediation is of very less effort, less labor intensive, cheap, ecofriendly, sustainable, and relatively easy to implement. Most of the disadvantages of bioremediation relate to the slowness and time-consumption; furthermore, the products of biodegradation sometimes become more toxic than the original compound. The performance evaluation of bioremediation might be difficult as it has no acceptable endpoint. There is a need for further studies to develop bioremediation technologies in order to find more biological solutions for bioremediation of heavy metal contamination from different environmental systems.

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Section: Role Of Microorganismsmentioning

confidence: 99%

Advances in Heavy Metal Bioremediation: An Overview

Sayqal

Ahmed

2021

Applied Bionics and Biomechanics

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“…The most serious problem resulting from Se-pollution is contamination of drinking water sources; hence, remediation requires effective techniques to remove Se from natural waters [214,215]. Environmental Se-contamination may be bio-remediated using proper microbial adaptations like alkylation [216] or Se-transformation, bioavailability, mobility and volatilization into the atmosphere [15].…”

Section: Are Selenium and Nano-selenium Emerging Pollutants?mentioning

confidence: 99%

Selenium and Nano-Selenium Biofortification for Human Health: Opportunities and Challenges

et al. 2020

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Selenium is an essential micronutrient required for the health of humans and lower plants, but its importance for higher plants is still being investigated. The biological functions of Se related to human health revolve around its presence in 25 known selenoproteins (e.g., selenocysteine or the 21st amino acid). Humans may receive their required Se through plant uptake of soil Se, foods enriched in Se, or Se dietary supplements. Selenium nanoparticles (Se-NPs) have been applied to biofortified foods and feeds. Due to low toxicity and high efficiency, Se-NPs are used in applications such as cancer therapy and nano-medicines. Selenium and nano-selenium may be able to support and enhance the productivity of cultivated plants and animals under stressful conditions because they are antimicrobial and anti-carcinogenic agents, with antioxidant capacity and immune-modulatory efficacy. Thus, nano-selenium could be inserted in the feeds of fish and livestock to improvise stress resilience and productivity. This review offers new insights in Se and Se-NPs biofortification for edible plants and farm animals under stressful environments. Further, extensive research on Se-NPs is required to identify possible adverse effects on humans and their cytotoxicity.

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“…El uso de microbios sirve para degradar As y Se. bajo técnicas que implican el uso de plantas, planta-microbio, células vivas y biomasa microbiana muerta (Paul & Saha, 2019).…”

Section: Por Microorganismosunclassified

Biorecovery of wastewater with microorganisms

Cabrera

Navarrete

Alcivar

et al. 2021

Manglar

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El agua es un elemento insustituible que requiere de procesos y medidas sanitarias. La creciente demanda ha promovido de diseños para recuperarla y reutilizarla, uno de los sistemas de innovación es la biorremediación que permite la aplicación de agentes microbianos capaces de degradar los contaminantes. Esta investigación está constituida por la revisión de literatura de fuente primaria para obtener criterios en la aplicación de bacterias para el tratamiento de aguas residuales y la reutilización. La Biorremediación ha demostrado ser una de las alternativas más eficientes y rentables para la eliminación de cuerpos que contaminan el ecosistema, en comparación con los sistemas convencionales físicos -químicas. Sin embargo, los resultados de esta estrategia remediadora dependerán del lugar y condiciones ambientales, es por esta razón la importancia del hallazgo de nuevas biotecnologías e implementación de técnicas rentables aplicadas al bienestar del ambiente y seguridad de la sociedad. Para estudios futuros relacionados a la aplicación de algún tipo de biorremediación se debe realizar un análisis previo de la factibilidad ecológica y económica según las condiciones del ecosistema dañado.

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Environmental Arsenic and Selenium Contamination and Approaches Towards Its Bioremediation Through the Exploration of Microbial Adaptations: A Review

Cited by 38 publications

References 129 publications

Advances in Heavy Metal Bioremediation: An Overview

Advances in Heavy Metal Bioremediation: An Overview

Selenium and Nano-Selenium Biofortification for Human Health: Opportunities and Challenges

Biorecovery of wastewater with microorganisms

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