Heavy metal pollution: Insights into chromium eco-toxicity and recent advancement in its remediation

Sharma, Nitika; Sodhi, Kushneet Kaur; Kumar, Mohit; Singh, Dileep Kumar

doi:10.1016/j.enmm.2020.100388

Cited by 72 publications

(32 citation statements)

References 96 publications

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“…Due to the harm that pollutants exert on both humans and other living things, environmental pollution is a serious public health problem. The complete elimination of contaminants via chemical and physical methods of remediation is costly [175]. Additionally, both approaches may result in increased pollution and site disruption, which could have a detrimental effect on nearby humans and other biota.…”

Section: Advantages and Disadvantagesmentioning

confidence: 99%

Recent Strategies for Bioremediation of Emerging Pollutants: A Review for a Green and Sustainable Environment

Bala

Garg

Thirumalesh

et al. 2022

Toxics

219

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Environmental pollution brought on by xenobiotics and other related recalcitrant compounds have recently been identified as a major risk to both human health and the natural environment. Due to their toxicity and non-biodegradability, a wide range of pollutants, such as heavy metals, polychlorinated biphenyls, plastics, and various agrochemicals are present in the environment. Bioremediation is an effective cleaning technique for removing toxic waste from polluted environments that is gaining popularity. Various microorganisms, including aerobes and anaerobes, are used in bioremediation to treat contaminated sites. Microorganisms play a major role in bioremediation, given that it is a process in which hazardous wastes and pollutants are eliminated, degraded, detoxified, and immobilized. Pollutants are degraded and converted to less toxic forms, which is a primary goal of bioremediation. Ex situ or in situ bioremediation can be used, depending on a variety of factors, such as cost, pollutant types, and concentration. As a result, a suitable bioremediation method has been chosen. This review focuses on the most recent developments in bioremediation techniques, how microorganisms break down different pollutants, and what the future holds for bioremediation in order to reduce the amount of pollution in the world.

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Section: Advantages and Disadvantagesmentioning

confidence: 99%

Recent Strategies for Bioremediation of Emerging Pollutants: A Review for a Green and Sustainable Environment

Bala

Garg

Thirumalesh

et al. 2022

Toxics

219

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“…When Cr (VI) solution mixes with seawater, it prevents some aquatic plants from photosynthesis, reduces reproduction in fish and can cause fish death. Cr (VI) causes burns in human body, in case of contact, causing irritation, wounds and ulcers on the skin and respiratory tract [25]. Sensitivity to Cr (III) and Cr (VI) causes allergic reactions, redness in the eyes and nose, itching and rash.…”

Section: Adsorption Of Cr (Vi) Using Chitosan-based Materials 31 Toxicity Of Chromiummentioning

confidence: 99%

Modified Chitosan Forms for Cr (VI) Removal

Parlayıcı¹,

Pehlivan²

2021

Chitin and Chitosan - Physicochemical Properties and Industrial Applications [Working Title]

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The forms of utility in the wastewater treatment of chitosan-based adsorbents acquired from natural substances have attracted numerous attentions in recent years. The use of chitosan modified adsorbents for removal of the chromium has aroused great interest. When chitosan-based modified adsorbents are considered, they have got large amount of an amino (-NH2) and hydroxyl (-OH) functional groups. Such adsorbents display that they have high activity and therefore they may be extensively utilized in wastewater treatment plants to cast off chromium. In this chapter, the utility outcomes of chitosan-based substances will be explained after applying different parameters to remove Cr (VI) from the aqueous surrounding with the information obtained the use of batch adsorption systems. Application of various chitosan-based adsorbents for Cr (VI) removal application will be demonstrated in a detailed way and they will be discussed within the textual content.

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“…Manganese (Mn) is an essential metal to various organisms, and it is an important constituent of several enzymes and cofactors (Harford et al, 2015); for example, it is needed in the cell to catalyze oxygen evolution in the photosynthetic process (Knauer et al, 1999), which is essential for splitting water in photosystem II and superoxide dismutase (Sharma et al, 2020). Primarily Mn exists as the oxidation states Mn (II)—soluble—and Mn (IV)—insoluble, the latter being less bioavailable and toxic (Harford et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Individual and Combined Effects of Manganese and Chromium on a Freshwater Chlorophyceae

Alho

Gebara

Mansano

et al. 2022

Enviro Toxic and Chemistry

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Manganese (Mn), an essential metal in trace amounts, and chromium (Cr), a nonessential metal to algae, are often found in effluent discharges and may co‐occur in contaminated aquatic environments. Therefore, we investigated the effects of Mn and Cr, and their mixtures, on a freshwater Chlorophyceae, Raphidocelis subcapitata, using a multiple endpoint approach. Regarding the single exposure of metals, Mn was 4 times more toxic (median inhibitory concentration at 72 h [IC5072 h] = 4.02 ± 0.45 µM Mn) than Cr (IC5072 h = 16.42 ± 4.94 µM Cr) for microalgae, considering the effects on the relative growth rate. Moreover, this species was the most sensitive to Mn, according to the species sensitivity distribution curve. Overall, the tested metals did not lead to significant changes in reactive oxygen species production, cellular complexity, and cell relative size but significantly decreased the algal growth and the mean cell chlorophyll a (Chl a) fluorescence at the highest concentrations (3.64–14.56 µM of Mn and 15.36–19.2 µM of Cr). The decreased mean cell Chl a fluorescence indicates an impact on pigment synthesis, which may be related to the observed growth inhibition. In the mixture tests, the reference models concentration addition and independent action were used to analyze the data, and the independent action model was the best fit to describe our results. Therefore, the Mn and Cr mixture was noninteractive, showing additive effects. This is the first study to address the combined toxicity of Mn and Cr regarding freshwater Chlorophyceae. Environ Toxicol Chem 2022;41:1004–1015. © 2022 SETAC

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Heavy metal pollution: Insights into chromium eco-toxicity and recent advancement in its remediation

Cited by 72 publications

References 96 publications

Recent Strategies for Bioremediation of Emerging Pollutants: A Review for a Green and Sustainable Environment

Recent Strategies for Bioremediation of Emerging Pollutants: A Review for a Green and Sustainable Environment

Modified Chitosan Forms for Cr (VI) Removal

Individual and Combined Effects of Manganese and Chromium on a Freshwater Chlorophyceae

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