Remediation technologies for heavy metal contaminated groundwater

Hashim, Mohd Ali; Mukhopadhyay, Soumyadeep; Sahu, J.N.; Sengupta, Bhaskar

doi:10.1016/j.jenvman.2011.06.009

Cited by 793 publications

(325 citation statements)

References 282 publications

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“…Biotic methods exploit natural biological processes that allow certain plants and microorganisms to help in the remediation of metals in soil and water (Hashim et al, 2011). Bioremediation is gaining importance in recent times as an alternate technology for the removal of elemental pollutants in soil and water, which require effective methods of decontamination (Srivastava and Majumder, 2008).…”

Section: Heavy Metals Concentrationsmentioning

confidence: 99%

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Bahobil¹,

Bayoumi²,

Atta³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Heavy Metals Concentrationsmentioning

confidence: 99%

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Bahobil¹,

Bayoumi²,

Atta³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…In the environment, heavy metals are generally more persistent than organic contaminants such as pesticides or petroleum byproducts and they can become mobile in soils depending on soil pH and their speciation (Hashim et al 2011). …”

Section: Introductionmentioning

confidence: 99%

The applicability of soil flushing technology in a metallurgical plant

Manca

Caredda

Orrù

2018

Int J Coal Sci Technol

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Soil flushing technology is an 'in situ' remediation technique involving the injection of a liquid solution. Applications of the soil flushing technique depend on the leachability of the pollutants and the environmental compatibility and total volumes of the solutions used. Therefore, experiments should consider these aspects by simulating the real phenomenon and using the most suitable reagents for the leachability of the different mineralogical forms present. Thirtyone laboratory tests were carried out (in batch and becker) to the complete exhaustion of the leaching capacity according to pH measurements. The reaction kinetics were studied by producing more than 300 solution samples during which the principal heavy metal concentrations, pH and Eh were measured. Leaching solutions containing various concentrations of hydrochloric, sulphuric, nitric and acetic acids were used. Mercury was leached using potassium iodide and acetic acid (pH 2). Analytes such as arsenic, cadmium, mercury, lead, selenium and zinc proved to be leachable in the investigated soil layer. However, high removal efficiencies could be obtained using different typological solutions, concentrations and volumes. The paper discusses the applicability of the soil flushing technique for different heavy metal contents and pH conditions of the flushing solution.

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“…The susceptibility of chromium to redox reactions, adsorption, precipitation or complex formation can influence its speciation and mobility (Hashim et al 2011).…”

Section: Introductionmentioning

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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Remediation technologies for heavy metal contaminated groundwater

Cited by 793 publications

References 282 publications

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

The applicability of soil flushing technology in a metallurgical plant

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

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