Arsenic contamination, consequences and remediation techniques: A review

Singh, Rachana; Singh, Samiksha; Parihar, Parul; Singh, Vijay Pratap; Prasad, Sheo Mohan

doi:10.1016/j.ecoenv.2014.10.009

Cited by 973 publications

(417 citation statements)

References 370 publications

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“…Inorganic oxoanions arsenite (As(III)) and arsenate (As(V)) are more toxic than the organic species (e.g. monomethylarsonic acid MMA, dimethylarsinic acid DMA) that are the result of biological activity [9] (Figure 1). More complex molecules, such as arsenobetaine or arsenocholine, are considered non-toxic.…”

Section: Introductionmentioning

confidence: 99%

“…The main concern about the determination of arsenic in environmental samples has been habitually related to its presence in groundwater [11,12], drinking water [9,13], biota [14], soils [15] and food [16]. However, air represents also an important route of dispersion, as it allows As to be transported globally [17,18].…”

mentioning

confidence: 99%

“…In some of the different specific reviews about As in the environment published since the 1980's to nowadays, the presence of arsenic in the atmosphere is not considered (Duker et al [7], Singh et al [9]). In others, it is just mentioned briefly, indicating that As is mainly related to the particulate matter present in the air, as in the review of Mandal and Suzuki [1].…”

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confidence: 99%

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Analytical approaches for arsenic determination in air: A critical review

Sánchez-Rodas

Campa

Alsioufi

2015

Analytica Chimica Acta

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This review describes the different steps involved in the determination of arsenic in air, considering the particulate matter (PM) and the gaseous phase. The review focuses on sampling, sample preparation and instrumental analytical techniques for both total arsenic determination and speciation analysis. The origin, concentration and legislation concerning arsenic in ambient air are also considered. The review intends to describe the procedures for sample collection of total suspended particles (TSP) or particles with a certain diameter expressed in microns (e.g. PM10 and PM2.5), or the collection of the gaseous phase containing gaseous arsenic species. Sample digestion of the collecting media for PM is

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Analytical approaches for arsenic determination in air: A critical review

Sánchez-Rodas

Campa

Alsioufi

2015

Analytica Chimica Acta

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“…Many As removal technologies are available and have been extensively reviewed elsewhere [18][19][20]. The use of Fe-Mn binary oxides may be most promising due to the simplicity and efficiency of both As(III) and As(V) removal [21].…”

Section: Introductionmentioning

confidence: 99%

In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil

McCann

Peacock

Hudson‐Edwards

et al. 2018

Journal of Hazardous Materials

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In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil., Journal of Hazardous Materialshttp://dx.doi.org/10. 1016/j.jhazmat.2017.08.066 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Graphical abstractHighlights  A Fe-Mn binary oxide waste is used to remediate As contaminated soils. As(III) and As(V) adsorption capacities of 70 mg g 1 and 32 mg g 1 were determined. The bioaccessibility of total As was significantly reduced by 7.80 %  Arsenic in the contaminated soil effectively binds to the exogenous binary oxide. As(V) was sorbed by mononuclear bidentate corner-sharing with Fe. AbstractThe ability of a Fe-Mn binary oxide waste to adsorb arsenic (As) in a historically contaminated soil was investigated. Initial laboratory sorption experiments indicated that arsenite [As(III)] was oxidized to arsenate [As(V)] by the Mn oxide component, with concurrent As(V) sorption to the Fe oxide. The binary oxide waste had As(III) and As(V) adsorption capacities of 70 mg g 1 and 32 mg g 1 respectively. X-ray Absorption Near-Edge Structure and Extended X-ray Absorption Fine Structure at the As K-edge confirmed that all binary oxide waste surface complexes were As(V) sorbed by 3 mononuclear bidentate corner-sharing, with 2 Fe at ~ 3.27 Ǻ The ability of the waste to perform this coupled oxidation-sorption reaction in real soils was investigated with a 10% by weight addition of the waste to an industrially As contaminated soil. Electron probe microanalysis showed As accumulation onto the Fe oxide component of the binary oxide waste, which had no As innately. The bioaccessibility of As was also significantly reduced by 7.80 % (p < 0.01) with binary oxide waste addition. The results indicate that Fe-Mn binary oxide wastes could provide a potential in situ remediation strategy for As and Pb immobilization in contaminated soils.

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“…The removal of various arsenic species from contaminated water and wastewater is possible due to the application of oxidation and precipitation techniques, coagulation, ion exchange and sorption methods or membrane separation [7][8][9][10][11]. Each of these treatment techniques has advantages and may offer a good solution for the treatment of arsenic-rich water/wastewater.…”

Section: Introductionmentioning

confidence: 99%

Implementation of ferric hydroxide-based media for removal of toxic metalloids

Szlachta

Wójtowicz

2017

E3S Web Conf.

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Abstract. Effective removal of inorganic arsenic species is possible by application of the sorption technique with the use of iron-based sorbents. This study investigates the removal of arsenic(III) and arsenic(V) from an aqueous solution by application of a granular ferric hydroxide-based sorbent. The performance of tested media was evaluated based on the batch and fixed-bed adsorption studies. The efficiency of the process was determined with various treatment times, adsorbent doses, initial concentrations of arsenic and various solution temperatures. The obtained adsorption data were fitted with pseudo-first and second-order kinetic models and Langmuir and Freundlich isotherm equations. It was observed that the overall arsenite removal was lower when compared to the arsenate, and all tested operating parameters influenced the process efficiency. The experiments under dynamic conditions showed high treatment capacity and stability of tested adsorbent over a long period of time.

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Arsenic contamination, consequences and remediation techniques: A review

Cited by 973 publications

References 370 publications

Analytical approaches for arsenic determination in air: A critical review

Analytical approaches for arsenic determination in air: A critical review

In situ arsenic oxidation and sorption by a Fe-Mn binary oxide waste in soil

Implementation of ferric hydroxide-based media for removal of toxic metalloids

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