Biosorption of Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa

Kang, Soo Yong; Lee, Jong-Un; Kim, Kyoung-Woong

doi:10.1016/j.bej.2006.06.005

Cited by 136 publications

(48 citation statements)

References 22 publications

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“…Microorganisms such as bacteria (Srinath et al 2002), fungi (Bai and Abraham 2003) and algae (Aravindhan et al 2004) have been used in biosorption studies. The bacterium P. aeruginosa (Kang et al 2006) fungus Mucor hiemalis (Tewari et al 2005), yeast Pichia guilliermondi (Kaszycki et al 2004) and microalgae Scenedesmus incrassatulus (Pena-Castro et al 2004) are a few examples of organisms whose metal-binding capacities have been demonstrated. As biosorption of metals using living biomass is timeconsuming and it is expensive to find appropriate biomass, research interest turned to the use of dead microbial biomass and other biomaterials which are of low cost and are abundant.…”

Section: Bacterial Cr(vi) Resistancementioning

confidence: 99%

Remediation of chromium contaminants using bacteria

Kanmani¹,

Aravind²,

Preston

2011

Int. J. Environ. Sci. Technol.

123

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Chromium contaminants emanating from industrial activities pose a significant threat to human's wellbeing. Chromium (III) and Chromium (VI) are the forms in which they are commonly encountered, of which the trivalent form is relatively benign. Hence, biological reduction of hexavalent chromium has been widely explored by researchers, yielding fruitful outcomes, opening up exciting avenues and also throwing up new challenges. This article attempts to review this area of research. Microbes, especially bacteria capable of Chromium (VI) reduction, belonging to a heterogeneous group have been isolated from contaminated sites. They exhibit plasmid-mediated chromate resistance and the reduction is enzymatically mediated. Reduction studies have been carried out with free and immobilized enzymes as well as whole cells. Experiments have been carried out in specifically designed bioreactors operated in batch and continuous modes. Although significant progress has been made, much needs to be done for its successful in situ application as the organism may not withstand the Chromium concentration or may be impeded by the presence of other toxicants. With molecular engineering, it may be possible to derive strains with improved performance even under stressful field conditions.

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Section: Bacterial Cr(vi) Resistancementioning

confidence: 99%

Remediation of chromium contaminants using bacteria

Kanmani¹,

Aravind²,

Preston

2011

Int. J. Environ. Sci. Technol.

123

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“…Their presence in the wastewater of several industrial processes, such as electroplating, metal finishing, metallurgical work, tanning, chemical manufacturing, mining and battery manufacturing, has brought about more environmental concerns due to their toxicity even at low concentrations [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Seed oil (Pentaclethramacrophlla) Shell in Removal of Nickel (II) ionAqueoussolution

Adeyemi¹,

Dauda²

2014

IOARJAC

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“…Therefore, the porous size of the membranes is an important factor in preventing the dissolved metallic ions or the low molecular weight complexes from passing through the membrane (Landaburu-Aguirre et al 2009). The ionic exchange process uses natural or synthetic resins that have the specific capacity to exchange their ions with the heavy metals that are present in the wastewater (Kang et al 2007), but the last ones are commonly preferred due to their ability to eliminate almost all of the metallic ions (Alyüz and Veli 2009). Usually, this technique could be affected by the pH, temperature, initial concentration of the heavy metal and contact time between the substrate and the resin.…”

Section: Removal Techniques For Cr(vi)mentioning

confidence: 99%

“…However, this material is expensive and can remove only a few milligrams of metallic ions per gram of activated carbon. It is also complicated to regenerate the material for reutilisation (Jusoh et al 2007;Kang et al 2007). Membrane filtration is a promising technique for heavy metal removal, due to its high efficiency, easy operation and space saving aspects.…”

Section: Removal Techniques For Cr(vi)mentioning

confidence: 99%

Metallophilic fungi research: an alternative for its use in the bioremediation of hexavalent chromium

García-Hernández

Villarreal-Chiu

Garza-González

2017

Int. J. Environ. Sci. Technol.

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Contamination by hexavalent chromium has had a large impact on modern society and human health. This problem is a consequence of its great industrial applicability to several products and processes. Short-term exposure to hexavalent chromium can cause irritation, ulceration in skin and stomach and in addition to cancer, dermatitis, and damage to liver, renal circulation and nervous tissues, with even death being observed in response to long-term exposures. Many techniques have been used for the remediation of this pollutant, including physical and chemical approaches and, in more recent years, biological methods. Filamentous fungi isolated from contaminated sites exhibit a significant tolerance to heavy metal; hence, they are an important source of microbiota capable of eliminating hexavalent chromium from the environment. However, these microorganisms can do so in different ways, including biosorption, bioreduction, and bioaccumulation, among others. In this review, we explore several of the most documented mechanisms that have been described for fungi/hexavalent chromium interactions and their potential use in bioremediation.

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Biosorption of Cr(III) and Cr(VI) onto the cell surface of Pseudomonas aeruginosa

Cited by 136 publications

References 22 publications

Remediation of chromium contaminants using bacteria

Remediation of chromium contaminants using bacteria

Efficiency of Seed oil (Pentaclethramacrophlla) Shell in Removal of Nickel (II) ionAqueoussolution

Metallophilic fungi research: an alternative for its use in the bioremediation of hexavalent chromium

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