Effect of interferences on the breakthrough of arsenic: Rapid small scale column tests

Nguyen, Vu L.; Chen, Wei Hsiang; Young, Thomas M.; Darby, Jeannie L.

doi:10.1016/j.watres.2011.04.037

Cited by 37 publications

(30 citation statements)

References 20 publications

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“…Dissolved anions such as phosphate, silicate and sulfate have been reported to reduce the arsenic removal capacity of different adsorbents [49]. During equilibrium batch studies, four different levels of silica, phosphate and sulfate were spiked into the arsenic test water (pH 7).…”

Section: Effect Of Competing Ions On Arsenic Sorptionmentioning

confidence: 99%

Polymeric anion exchanger supported hydrated Zr(IV) oxide nanoparticles: A reusable hybrid sorbent for selective trace arsenic removal

Padungthon

German

Wiriyathamcharoen

et al. 2015

Reactive and Functional Polymers

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Section: Effect Of Competing Ions On Arsenic Sorptionmentioning

confidence: 99%

Polymeric anion exchanger supported hydrated Zr(IV) oxide nanoparticles: A reusable hybrid sorbent for selective trace arsenic removal

Padungthon

German

Wiriyathamcharoen

et al. 2015

Reactive and Functional Polymers

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“…A number of experiments and model studies of the adsorption of arsenic and other heavy metals are described in various publications [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. These studies describe sorption processes at different pH values, initial heavy metal ion concentrations in water, solid/liquid ratio, particle size of a sorption material, filtration rate, temperature and composition of water to be treated (concentration of iron, manganese, phosphorus, silicon, fluorides, sulphates, organic matter, etc.…”

Section: Introductionmentioning

confidence: 99%

The Use of Iron-Based Sorption Materials and Magnetic Fields for the Removal of Antimony from Water

Ilavský¹,

Barloková²,

Munka³

2015

Pol. J. Environ. Stud.

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Elemental antimony (Sb) is a silvery white, brittle solid that, along with arsenic and bismuth, belongs to group VA of the periodic table. It is classified as both a metal and a metalloid.Antimony is present in the Earth's crust at a concentration of about 0.2-0.5 mg/kg. It is seldom found in the environment as a pure element, but it is often found as trivalent and pentavalent sulphides and chlorides. Antimony may enter the aquatic environment by way of natural weathering of rocks, runoff from soils, effluents from mining and manufacturing operations, and industrial and municipal leachate discharges.Antimony is present in water as Sb Antimony is a toxic heavy metal with effects similar to those of arsenic and lead. Intoxication by antimony is not as severe as that from arsenic, since the antimony compounds are absorbed more slowly. The findings on the health aspects of certain heavy metals in drinking water are included in several publications [3][4][5]. The World Health Organization and institutions dealing with monitoring carcinogens have not yet classified antimony as a carcinogen.Pol. J. Environ. Stud. Vol. 24, No. 5 (2015), 1983-1992 Original Research AbstractThe objective of this work was to verify the sorption properties of granular filter materials (GEH, CFH12, Bayoxide E33) during the process of removing antimony from water, and to monitor the impact of magnetic and electromagnetic fields on the effectiveness of removing antimony from water. Pilot tests showed that the use of iron-based sorption materials could possibly decrease the antimony content in water to the values limited for drinking water (5 µg/L Sb). The most suitable adsorbent for removing antimony was GEH. At a concentration of antimony in raw water of 81.4 µg/L and a filtration rate of 3.4 m/h, a value of bed volume 2,030 and adsorption capacity of 144.7 µg/g was determined; at the filtration rate of 5.6 m/h, the bed volume was 1,342, and the adsorption capacity was 96.8 µg/g achieved at breakthrough concentration 5 μg Sb/L. The results presented from testing the effects of a permanent magnet and electromagnet in removing antimony are not well known, as only a few experiments have been conducted.

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“…The substances whose presence in water can affect the sorption of arsenic and antimony include, for example, other heavy metals (vanadium), iron, manganese, silicate, sulphate, phosphate, fluoride, organics, etc. (Nguyen et al 2011;Zeng et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Removal of Antimony from Water Using GEH Sorption Material at Different Filter Bed Volumes

Barloková

Ilavský

Munka

2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. The article presents the results of antimony removal from the water at Dúbrava water resource using GEH sorption material at three different amounts (volumes) of the filter bed. Based on the results of the experiment we calculated the linear dependences of the amount (volume) of the bed and the absorption capacity, the time of contact of water with the material, bed volume (V/V0 ratio), the duration of filtration and the adsorbed antimony volume in the filter bed. These values were determined for antimony concentrations of 5 µg/L at the outlet from the filter columns, i.e. for limit concentrations of antimony in drinking water, with an average concentration of antimony in raw water being 90.3 µg/L and the average filtration rate being in the range from 5.3 to 5.4 m/h.

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Effect of interferences on the breakthrough of arsenic: Rapid small scale column tests

Cited by 37 publications

References 20 publications

Polymeric anion exchanger supported hydrated Zr(IV) oxide nanoparticles: A reusable hybrid sorbent for selective trace arsenic removal

Polymeric anion exchanger supported hydrated Zr(IV) oxide nanoparticles: A reusable hybrid sorbent for selective trace arsenic removal

The Use of Iron-Based Sorption Materials and Magnetic Fields for the Removal of Antimony from Water

Removal of Antimony from Water Using GEH Sorption Material at Different Filter Bed Volumes

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