Antimony Removal from Water by Adsorption to Iron-Based Sorption Materials

Ilavský, Ján; Barloková, Danka; Munka, Karol

doi:10.1007/s11270-014-2238-9

Cited by 17 publications

(7 citation statements)

References 12 publications

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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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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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“…There are additional wells in this area used as individual drinking water wells. In the region, mining activities were carried out in the past that exploited deposits mainly of heavy metals, such as arsenic (As) and antimony (Sb) [8,22,24,44].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, longterm monitoring and regular inspection of the quality of water in this region is performed [5,22]. Levels exceeding the Sb upper limit value (ULV) (Sb = 0.005 mg.l -1 ) were observed, for example, in the Zlatá Idka region, in the Bukovec water-supply reservoir and at other sites [24].…”

Section: Introductionmentioning

confidence: 99%

Individual Water Sources and their Potential Effect on Human and Animal Health in Environmentally Burdened Region

Hrušková¹,

Sasáková

Bujdošová³

et al. 2020

Folia Veterinaria

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The quality of water in a well that serves as an individual drinking water source, located in the Slovakian region previously burdened with mining activities, was investigated in relation to the quality of surface water in the same region. Selected microbiological and physicochemical parameters were determined in samples of ground water (well) and surface water (brook and river). Plate counts of coliform bacteria, E. coli, enterococci and bacteria cultivated at 22 °C and 37 °C were determined. Microbiological quality of samples collected from the well was generally satisfactory. Examination of the samples of surface water (river) showed a significant organic pollution indicated by fluorescence spectra. In all water samples the values of: pH, electrical conductivity, dissolved oxygen, ammonium ions, nitrites, nitrates, chlorides and chemical oxygen demand (CODMn) were below the limits set by the state legislation. In the surface water, high levels of arsenic were found. The sum of calcium and magnesium in the well water was close to or below the recommended minimum level. In this well water, the level of antimony exceeded 10-fold the maximum limit for drinking water and was of the largest concern as this well water has been used for drinking, cooking, and watering of animals and vegetables for a long period of time. This poses a risk of accumulation of this metalloid in the food chain.

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“…Many studies indicate that commercial sorbent materials based on FeOOH developed for arsenic removal fail to be efficient for the removal of antimony. Particularly, granular ferric hydroxide (GFH), CFH12 or Bayoxide E33 have been tested in several studies, indicating a weak performance for antimony removal, i.e., one to two orders of magnitude below the corresponding values for arsenic, since the adsorption capacity at the residual concentration of 5 µg/L ranged between 0.03 and 0.65 mg Sb/g [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Iron-Based Oxy-Hydroxides in Removing Antimony from Groundwater to Levels below the Drinking Water Regulation Limits

et al. 2017

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This study evaluates the efficiency of iron-based oxy-hydroxides to remove antimony from groundwater to meet the requirements of drinking water regulations. Results obtained by batch adsorption experiments indicated that the qualified iron oxy-hydroxide (FeOOH), synthesized at pH 4 for maintaining a high positive charge density (2.5 mmol OH − /g) achieved a residual concentration of Sb(III) below the EU drinking water regulation limit of 5 µg/L by providing an adsorption capacity of 3.1 mg/g. This is more than twice greater compared either to similar commercial FeOOHs (GFH, Bayoxide) or to tetravalent manganese feroxyhyte (Fe-MnOOH) adsorbents. In contrast, all tested adsorbents failed to achieve a residual concentration below 5 µg/L for Sb(V). The higher efficiency of the qualified FeOOH was confirmed by rapid small-scale column tests, since an adsorption capacity of 3 mg Sb(III)/g was determined at a breakthrough concentration of 5 µg/L. However, it completely failed to achieve Sb(V) concentrations below 5 µg/L even at the beginning of the column experiments. The results of leaching tests classified the spent qualified FeOOH to inert wastes. Considering the rapid kinetics of this process (i.e., 85% of total removal was performed within 10 min), the developed qualified adsorbent may be promoted as a prospective material for point-of-use Sb(III) removal from water in vulnerable communities, since the adsorbent's cost was estimated to be close to 30 ± 3.4 €/10 3 m 3 for every 10 µg Sb(III)/L removed.

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Antimony Removal from Water by Adsorption to Iron-Based Sorption Materials

Cited by 17 publications

References 12 publications

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

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

Individual Water Sources and their Potential Effect on Human and Animal Health in Environmentally Burdened Region

Efficiency of Iron-Based Oxy-Hydroxides in Removing Antimony from Groundwater to Levels below the Drinking Water Regulation Limits

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