· Thus, UF might effectively separate out antimony-loaded HFO nanocrystalline par- ticles, antimony(III) removal efficiency might betterthan CFS under limitedretention …

 · Secondary iron minerals (SIMs), naturally formed in acid mine drainage (AMD), can serve as sinks to remove antimony (Sb) from the environment. In this study, we …

Antimony occurs widely in the environment as a result of natural processes and human activity. Although antimony is similar to arsenic in chemical properties and toxicity, and a pollutant of priority interest to the USEPA and the EU, its environmental behaviors, control techniques, and even solution chemistry, are yet barely touched.

Herein, we report the synthesis and characterization of a novel α-MnO2 nanofibers (MO-2) prepared via morphological and phase transitions from δ-MnO2 nanoparticles under hydrothermal reaction in the presence of graphene oxide (GO) for the first time. The MO-2 shows long, compact, and uniform nanofiber morphology. The adsorption properties of …

 · Removal of antimony(V) and antimony(III) from drinking water by coagulation–flocculation–sedimentation (CFS)

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 · A number of methods have been used for the removal of antimony. These include reduction and precipitation [ 16 ], solvent extraction [ 17 ], ion exchange [ 18 ], reverse osmosis [ 19 ], membrane filtration [ 20 ], sorption in …

 · Antimony and arsenic (As) are analogs. Although numerous studies examined arsenic removal, few reports are available on Sb removal. In this review, various Sb removal techniques are described to understand how this process occurs and what research gaps are needed to improve efficiency.

 · Effects of polymer, pH value and functional groups/Sb ions quantity ratio on antimony removal were systematically explored. Finally, antimony rejection efficiencies of 85.8 ± 0.9%–94.7 ± 1.9% were obtained with gradually reduced normalized water permeate flux from 1 to 0.61 ± 0.02 in 120 min P

 · Firstly, the introduction of Sb chemistry, distribution and health threats are presented in this review, which is essential to the removal techniques. Then, we provide …

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 · It is found that poly ferric sulfate (PFS) can remove antimony (V) with an efficiency of 97.4%,outperforming the aluminum coagulants. PFS achieved 1.27-fold higher efficiency under acidic condition than under basic condition,because PFS formed more active species of Fe (a) and was protonated at lower pH.

 · Removal of Antimony (III) from Aqueous Solution by Using Grey and Red Erzurum Clay and Application to the Gediz River Sample ISRN Anal. Chem., 2013 ( …

 · The removal efficiency of antimony(V) was reversely related to the PFS dosage at various initial antimony (V) concentrations. alThough higher removal efficiency was achieved with higher PFS dosage,but it doesn't work under low antimony (V) concentration.

The removal of antimony (III) by FeCl 3 -modified activated carbons increased when the adsorption temperature increased. The results indicated that the removal of antimony (III) [Sb (III)] by GAC modified with 0.02 mol / LFeCl 3 and 0.05 mol / LFeCl 3 were 96.49 and 99.90%, respectively, under pH 7.03 and 25°C.

An antimony (III) oxide solution (10 mg per L, pH 3.6-13) was forced to permeate through the submicron-diameter pores of the chelating porous hollow-fiber membrane. The antimony concentration of the effluent penetrating the outside surface of the hollow fiber was determined as a function of the effluent volume.

Efficient removal of antimonate from water by yttrium-based metal-organic framework: Adsorbent stability and adsorption mechanism investigation. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2022, 633, 127877. https://doi/10.1016/j.colsurfa.2021.127877

 · In this study, antimony removal from drinking water with coagulation-flocculation-sedimentation (CFS) is comprehensively investigated with respect to the dependence of both Sb(III) and Sb(V ...

 · Antimony and bismuth are two of the most problematic impurities in copper electrorefining. As a result, much research has been done investigating the ways to remove them. Processes that are currently being used industrially include anode additions, liberators, ion exchange (IX), and solvent extraction (SX). Of these, liberators and anode …

 · Abstract and Figures. In this study, antimony removal by coagulation from polyethylene terephthalate resin production wastewater of „Orion Global PET" factory in Klaipėda city was ...

In this study, antimony removal from drinking water with coagulation-flocculation-sedimentation (CFS) is comprehensively investigated with respect to the dependence of both Sb (III) and Sb (V) removal on the initial contaminant-loading level, coagulant type and dosage, pH and interfering ions.

 · The effectiveness of antimony (Sb) removal by using iron-based coagulants was investigated in this study. The effects of pH, coagulant types and dose, equilibrium concentration, co-existing humic acid (HA) and anions, and oxidation process were studied. Effective Sb removal was achieved by using Fe(III)-based coagulants. However, the …

 · This review article summarizes the state of art on Sb removal using CNMs with the form of nano-adsorbents and/or filtration membranes. In details, procedures of synthesis and functionalization of different forms of CNMs were reviewed. Next, adsorption behavior and the underlying mechanisms toward Sb removal using various CNMs were presented …

 · The aim of this study was to separate antimony from its acidic aqueous solution with an electrochemical method by cathodic deposition. For this purpose it is essential to know the electrochemical behavior of antimony. Electrochemical studies were conducted on systems in aqueous sulfuric acid solutions containing 20–30 % of antimony.

 · The removal of antimony was found to require significant iron dosages, only reaching the release limit at [Fe III] ≥ 80 mM ([Fe III]/[Sb] = 295) . Comparing this result to earlier laboratory tests shows a clear similarity to the experimental conditions in which antimony is present in the +5 oxidation state. The difference in required iron ...

 · Antimony occurs widely in the environment as a result of natural processes and human activity. Although antimony is similar to arsenic in chemical properties and toxicity, and a pollutant of priority interest to the USEPA and the EU, its environmental behaviors, control techniques, and even solution chemistry, are yet barely touched. In this study, …

 · The maximum sorption capacities of n- and m-SIMs were 219.8 (SbIII) or 366.3 (SbV) mg g−1 and 160.3 (SbIII) or 114.9 (SbV) mg g−1 respectively, and n- and m-SIMs could both effectively remove ...

 · Zirconium oxide (ZrO2)-carbon nanofibers (ZCN) were fabricated and batch experiments were used to determine antimonite (Sb(III)) and antimonate (Sb(V)) adsorption isotherms and kinetics. ZCN have a maximum Sb(III) and Sb(V) adsorption capacity of 70.83 and 57.17 mg/g, respectively. The adsorption process between ZCN and Sb was …