Clean approach for chromium removal in aqueous environments and role of nanomaterials in bioremediation: Present research and future perspective

Samuel, Melvin S.; Ethiraj, Selvarajan; Chidambaram, Ramalingam; Patel, Himanshu; Brindhadevi, Kathirvel

doi:10.1016/j.chemosphere.2021.131368

Cited by 55 publications

(18 citation statements)

References 157 publications

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“…; Sarwar et al, 2017 ). In recent years, many impressive achievements have been made in the artificial control of microbial remediation, including biological stimulation and bioaugmentation technology ( Li et al, 2016 ; Samuel et al, 2021 ). As a good extracellular electron shuttle and complexing agent, FA facilitates the microbial remediation of metals ( Yong et al, 2016 ; Rosenmai et al, 2018 ).…”

Section: Role Of Fa In the Remediation Of Metals Contaminantsmentioning

confidence: 99%

Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect

Song

Sun²,

Wang³

et al. 2023

Front. Microbiol.

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Fulvic acid (FA) has been shown to play a decisive role in controlling the environmental geochemical behavior of metals. As a green and natural microbial metabolite, FA is widely used in environmental remediation because of its good adsorption complexation and redox ability. This paper introduces the reaction mechanism and properties of FA with metals, and reviews the progress of research on the remediation of metal pollutant by FA through physicochemical remediation and bioremediation. FA can control the biotoxicity and migration ability of some metals, such as Pb, Cr, Hg, Cd, and As, through adsorption complexation and redox reactions. The concentration, molecular weight, and source are the main factors that determine the remediation ability of FA. In addition, the ambient pH, temperature, metal ion concentrations, and competing components in sediment environments have significant effects on the extent and rate of a reaction between metals and FA during the remediation process. Finally, we summarize the challenges that this promising environmental remediation tool may face. The research directions of FA in the field of metals ecological remediation are also prospected. This review can provide new ideas and directions for the research of remediation of metals contaminants in sediments.

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Section: Role Of Fa In the Remediation Of Metals Contaminantsmentioning

confidence: 99%

Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect

Song

Sun²,

Wang³

et al. 2023

Front. Microbiol.

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“…In the past few decades, soil pollution caused by heavy metals has increased in prevalence, especially in developing Countries ( Samuel et al, 2021 ). Activities such as rapid industrialization, poor agricultural practices, and mine tailings runoff are often detrimental to soil health and can distribute hazardous metals into the environment, with harmful health consequences ( Raklami et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Arsenic and mercury tolerant rhizobacteria that can improve phytoremediation of heavy metal contaminated soils

Rojas-Solís¹,

Larsen²,

Lindig‐Cisneros³

2023

PeerJ

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Background Mining deposits often contain high levels of toxic elements such as mercury (Hg) and arsenic (As) representing strong environmental hazards. The purpose of this study was the isolation for plant growth promoting bacteria (PGPBs) that can improve phytoremediation of such mine waste deposits. Methods We isolated native soil bacteria from the rhizosphere of plants of mine waste deposits and agricultural land that was previously mine tailings from Tlalpujahua Michoacán, Mexico, and were identified by their fatty acid profile according to the MIDI Sherlock system. Plant growth promoting traits of all bacterial isolates were examined including production of 3-indoleacetic acid (IAA), siderophores, biofilm formation, and phosphate solubilization. Finally, the response of selected bacteria to mercury and arsenic was examined an in-vitro assay. Results A total 99 bacterial strains were isolated and 48 identified, representing 34 species belonging to 23 genera. Sixty six percent of the isolates produced IAA of which Pseudomonas fluorescens TL97 produced the most. Herbaspirillum huttiense TL36 performed best in terms of phosphate solubilization and production of siderophores. In terms of biofilm formation, Bacillus atrophaeus TL76 was the best. Discussion Most of the bacteria isolates showed high level of tolerance to the arsenic (as HAsNa2O4 and AsNaO2), whereas most isolates were susceptible to HgCl2. Three of the selected bacteria with PGP traits Herbispirillum huttiense TL36, Klebsiella oxytoca TL49 and Rhizobium radiobacter TL52 were also tolerant to high concentrations of mercury chloride, this might could be used for restoring or phytoremediating the adverse environmental conditions present in mine waste deposits.

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“…Many materials have been applied to remediate this low water quality such as hydrogel [24], biochar [25], magnetic bentonite [26], and nanomaterials or nanoparticles [27,28]. Nanomaterials have been used in removing pollutants from contaminated water such as arsenic [28] and chromium [29,30], whereas the role of nanofertilizers in enhancing the productivity of cultivated plants irrigated with low water quality still needs more research.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Production of Tomato Plants (Solanum lycopersicum L.) under Low-Quality Irrigation Water as Affected by Bio-Nanofertilizers of Selenium and Copper

et al. 2022

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Under the global water crisis, utilizing low-quality water sources in agriculture for irrigation has offered an effective solution to address the shortage of water. Using an excess of low-quality water sources may cause serious risks to the environment, which threaten crop safety and human health. Three kinds of irrigation water (0.413, 1.44, and 2.84 dS m−1) were selected under foliar-applied bio-nanofertilizers of selenium (100 mg L−1) and copper (100 mg L−1) in individual and/or combined application. The nanofertilizers were tested on the production of tomato under greenhouse. After harvesting, the quality of tomato yield and soil biology was evaluated. Using saline water for irrigation caused many main features in this study such as increasing the accumulation of salts, soil organic matter, and CaCO3 in soil by 84.6, 32.3, and 18.4%, respectively, compared to control. The highest tomato yield (2.07 kg plant−1) and soluble solids content (9.24%) were recorded after irrigation with low water quality (2.84 dS m−1) and nano-Cu fertilization. The plant enzymatic antioxidants and soil biological activity were decreased in general due to the salinity stress of irrigation water. After 30 days from transplanting, all studied soil biological parameters (soil microbial counts and enzymes) were higher than the same parameters at harvesting (80 days) under different categories of water quality. The values of all soil biological parameters were decreased by increasing water salinity. This study was carried out to answer the question of whether the combined nanofertilizers of selenium and copper can promote tomato production under saline water irrigation. Further investigations are still needed concerning different applied doses of these nanofertilizers.

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Clean approach for chromium removal in aqueous environments and role of nanomaterials in bioremediation: Present research and future perspective

Cited by 55 publications

References 157 publications

Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect

Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect

Arsenic and mercury tolerant rhizobacteria that can improve phytoremediation of heavy metal contaminated soils

Sustainable Production of Tomato Plants (Solanum lycopersicum L.) under Low-Quality Irrigation Water as Affected by Bio-Nanofertilizers of Selenium and Copper

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