Removal of Carcinogenic Arsenic from Drinking Water By the Application of Ion Exchange Resins

Karakurt, Sevtap; Pehlivan, Erol; Karakurt, Serdar

doi:10.35702/onc.10005

Cited by 12 publications

(14 citation statements)

References 11 publications

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“…Furthermore, the coefficients of determination ( R 2 ) were higher in the case of PFO kinetic model than in the case of PSO model, and this shows that the kinetic process is the best described by PFO model, as found for other systems. 7 , 8 , 41 …”

Section: Resultsmentioning

confidence: 99%

“…The characteristic bands arising from the stretching vibration of the As–O bond are present at 899 cm –1 , for AMOX3+As(V), and at 883 cm –1 for AMOX3+As(III) as previously reported. 8 , 44 , 65 The bands at 899 cm –1 in the FTIR spectra of AMOX3, after the adsorption of arsenate, would indicate the stretching frequencies of As–O bands in the H 2 AsO 4 – group. 58 …”

Section: Resultsmentioning

confidence: 99%

“… 6 , 7 To protect the human health, the World Health Organization decreased the maximum concentration of arsenic in drinking water to 10 μg/L. 8 Arsenic exists mostly in two inorganic forms as H 3 AsO 3 and H 3 AsO 4 , with the dominant arsenic species in groundwater being As(III), which is 60 times more toxic than As(V). 9 Therefore, there is a stringent need to develop highly efficient technologies to remove arsenic species from groundwater and wastewaters.…”

Section: Introductionmentioning

confidence: 99%

“…Arsenic is one of the most harmful pollutants present in the surface water and groundwater as a side effect of the ore exploitation, activity of volcanoes, and some anthropogenic sources such as mining. − Industrial wastewaters containing arsenic are generated by the metallurgical industry, glassware and ceramic production, tannery operation, dyestuff and pigments manufacture, wood preservatives, and pesticide manufacturing, petroleum refining, and rare-earth industries. , Ingestion of contaminated drinking water can cause gastrointestinal damage, cardiovascular and endocrine disorders, skin cancer, and kidney cancer. , To protect the human health, the World Health Organization decreased the maximum concentration of arsenic in drinking water to 10 μg/L . Arsenic exists mostly in two inorganic forms as H 3 AsO 3 and H 3 AsO 4 , with the dominant arsenic species in groundwater being As(III), which is 60 times more toxic than As(V) .…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Arsenic Removal from Aqueous Solutions Using Amidoxime Resin Hosted by Mesoporous Silica

Humelnicu

Ignat

Dinu³

et al. 2022

ACS Omega

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The paper reports on the performances of cross-linked amidoxime hosted into mesoporous silica (AMOX) in the removal of As(III) and As(V). The optimum pH for sorption of As(III) and As(V) was pH 8 and pH 5, respectively. The PFO kinetic model and the Sips isotherm fitted the best the experimental data. The thermodynamic parameters were evaluated using the equilibrium constant values given by the Sips isotherm at different temperatures and found that the adsorption process of As(III) and As(V) was spontaneous and endothermic on all AMOX sorbents. The spent AMOX sorbents could be easily regenerated with 0.2 mol/L HCl solution and reused up to five sorption/desorption cycles with an average decrease of the adsorption capacity of 18%. The adverse effect of the co-existing inorganic anions on the adsorption of As(III) and As(V) onto the sorbent with the highest sorption capacity (AMOX3) was arranged in the following order: H 2 PO 4 – > HCO 3 – > NO 3 – > SO 4 2– .

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of Arsenic Removal from Aqueous Solutions Using Amidoxime Resin Hosted by Mesoporous Silica

Humelnicu

Ignat

Dinu³

et al. 2022

ACS Omega

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“…İyon değiştirici reçine yüzeyinde bulunan yüklü fonksiyonel gruplar tarafından oluşturulan elektrostatik kuvvetler, sudaki iyonları reçine yüzeyine çekerler. Reçine yüzeyinde tutulan iyonlar, reçine matriksindeki iyonlarlarla stokiyometrik oranda yer değiştirir (Karakurt, 2019). Çözeltiden uzaklaşan her iyon, aynı yüklü diğer iyonik türlerin eşdeğer miktarıyla yer değiştirir.…”

Section: İyon Değişimi Mekanizması (Ion Exchange Mechanism)unclassified

Cr (VI) Removal from Aqueous Solutions by Lewatit Sybron Ionac SR 7 and Lewatit MP 600 Resins: Equilibrium and Modelling Study

ÜMMETOĞLU

Pehlivan

2021

Konya Journal of Engineering Sciences

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In this research, it was aimed to remove Cr (VI) from aqueous solutions by using Lewatit MP 600 and Lewatit Sybron Ionac SR 7 resins. These resins are an ideal scavenger for the removal of Cr (VI) from water. For Cr (VI) removal, the effects of certain parameters such as contact time, initial Cr (VI) concentration, pH and resin content on equilibrium studies were investigated. The rapid removal of Cr (VI) from the aqueous medium by reaching equilibrium in a short time showed that the Cr (VI) retention efficiency of the resins was high. Characterization of resins by Fourier Transform Infrared Spectroscopy (FT-IR) and surface morphology by Scanning Electron Microscope (SEM) were investigated before and after Lewatit MP 600 and Lewatit SR 7 resins adsorb Cr (VI) ions. To determine the amount of Cr (VI) removal from the aqueous medium, in other words, the capacity determination of the resins, the Cr (VI) values retained by the resin against the equilibrium Cr (VI) concentration were plotted. The capacity of the resins was determined by applying Langmuir, Freundlich, Dubinin-Raduskevich (D-R), Scatchard adsorption isoterm models to the graphs. It was concluded that Langmuir isotherm model is more suitable for Cr (VI) removal for the resins used. The pseudo-second-order kinetic model was more suitable for Cr (VI) removal than the pseudo-first-order kinetic model. From the experiments, it is seen that these D. ÜMMETOĞLU, E. PEHLİVAN UKMK2020: 14. Ulusal Kimya Mühendisliği Kongresi'nde sunulan bildiriler arasından seçilmiştir. (10-12 Haziran 2021 Konya, TÜRKİYE)commercial resins are suitable resins for the removal of Cr (VI) from aqueous solutions and are recommended for use in treatment plants.

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Arsenic removal adsorbent using limonite–polyethersulfone composite fiber via continuous flow column process

Le Thi,

Zhe,

Kobayashi

2024

Water Environment Research

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This research introduces an enhanced limonite‐based composite fiber adsorbent for arsenic (As) removal. The modification involves creating polyethersulfone (PES)–limonite composite fibers loaded with 60 wt% limonite powders, designed to be applicable in water flow environments. The fibers were prepared using a wet‐spinning process based on phase inversion, with varying concentrations (10, 20, and 30 wt%) of PES in NMP solution. The composite fiber with 10 wt% NMP exhibited a porous structure and demonstrated efficient absorption of both As(III) and As(V). Adsorption followed the Langmuir model, with qm values of 1.5 mg/g for As(III) and 3.2 mg/g for As(V) at pH 6. In column experiments, As removal rates increased with contact time, attributed to decreased flow rates (1 mL/min). Moreover, increasing fiber column height led to enhanced removal rates, as indicated by the Adams–Bohart model. The mechanism for As(V) removal involved the formation of an inner‐sphere complex through ion exchange between α‐FeOOH and HAsO4− and H2AsO42− in an aqueous solution at pH 6.8.Practitioner Points Changing the polyethersulfone ratio in the composite leads to variations in the appearance of limonite within each composite fiber. Limonite composite fibers effectively remove As(III) and As(V) at neutral pH. The adsorption behavior follows Langmuir kinetic model, the qm of 1.5 mg/g for As(III) and 3.2 mg/g for As(V). Longer columns and contact times enhance arsenic (As) removal in practical water treatment systems. Adam–Bohart model aids in predicting breakthrough and saturation time in As adsorption column design.

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Removal of Carcinogenic Arsenic from Drinking Water By the Application of Ion Exchange Resins

Cited by 12 publications

References 11 publications

Optimization of Arsenic Removal from Aqueous Solutions Using Amidoxime Resin Hosted by Mesoporous Silica

Optimization of Arsenic Removal from Aqueous Solutions Using Amidoxime Resin Hosted by Mesoporous Silica

Cr (VI) Removal from Aqueous Solutions by Lewatit Sybron Ionac SR 7 and Lewatit MP 600 Resins: Equilibrium and Modelling Study

Arsenic removal adsorbent using limonite–polyethersulfone composite fiber via continuous flow column process

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