The Removal of Antimony by Novel NZVI-Zeolite: the Role of Iron
2.1 Material. Beta zeolite was obtained from the Catalyst Plant of Nankai University and used without further purification. The ratio SiO 2 /Al 2 O 3 of the β-zeolite is 20–100 and surface area more than 640 m 2 /g. The Sb(III) stock solution was prepared from antimony potassium tartrate (KSbC 4 H 4 O 7 ·1/2H 2 O) in deionized water. …Web
اقرأ أكثرRemoval of antimonite and antimonate from water using Fe …
Introduction. Recently, antimony (Sb) and its compounds have attracted substantial attention for their extensive industrial applications. China is the largest producer of Sb raw material and supplies more than 75% of the global Sb (Wang et al., 2011); however, Sb is considered as a highly toxic heavy metal with respect to human health …Web
اقرأ أكثرReview of recently used adsorbents for antimony removal from
The EU and China limits for antimony in drinking water can be met by using mesoporous Co3O4@rGO treating the actual river water samples with original antimony concentration lower than 50 μg/L ...Web
اقرأ أكثرSimultaneous removal of arsenate and antimonate in simulated …
As one of the priority pollutants suggested by EPA, antimony and its compounds in the environment have received not enough attention. Recently, there has much concern about the increasing levels of Sb pollution in water and soil environment. Some researchers have exploited some adsorbents to remove antimony pollutants from …Web
اقرأ أكثرEfficient removal of antimonate and antimonite by a novel …
Antimony is a highly toxic pollutant and its removal from water gains increasing attention. To effectively remove both Sb(III) and Sb(V), a novel lanthanum-manganese binary oxide (L 1 M 2 BO) adsorbent was synthesized by a simple oxidation coupled with precipitation method. The as-prepared L 1 M 2 BO was detailedly …Web
اقرأ أكثرRemoval of antimony(V) and antimony(III) from drinking water by
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 ...Web
اقرأ أكثرAntimony- Drinking Water Contaminants, Facts/Removal Methods
How will Antimony be Detected in and Removed from My Drinking Water? The regulation for antimony became effective in 1994. Between 1993 and 1995, EPA required your …Web
اقرأ أكثرAntimony (III/V) removal from industrial wastewaters: treatment of
Antimony(V) removal is also improved by an increase in ferric chloride dose but requires higher iron dosages to achieve the same level of removal compared with Sb(III). Antimony(V) removal from sulfate media requires ferric dosages significantly higher than 8 mM (>40 mM) due to competition for binding by sulfate (Figure 3(b); Figure S3 ...Web
اقرأ أكثرA biochar supported magnetic metal organic framework for the removal …
The environmental background value for antimony in natural water is very low. The average antimony concentration in world rivers has been reported 1 μg/L (Wang et al., 2011). In some regions, surface water contains a higher background value, as reported median 2.1 μg/L, compared to the median of 0.6 μg/L in groundwater (Alderton D., 2014).Web
اقرأ أكثرRemoval of Antimony Species, Sb(III)/Sb(V), from Water by …
antimony removal (both major aqueous species) by Fe-based coagulants' addition, along with the estimation of uptake capacity at the residual concentration equal to the EU drinking water regulation limit (5 g/L), by using appropriately polluted tap water, which may allow the direct use of obtainedWeb
اقرأ أكثرProgress in antimony capturing by superior materials: …
Antimony (Sb) is naturally present and abundant in the Earth's crust, and meanwhile, it is widely used in manufacturing industries. Recently the capturing/removal of excess Sb from water has attracted large attention due to its un-expected high toxicity.Web
اقرأ أكثرHighly efficient removal of Sb(V) from water by franklinite …
In order to remove antimony(V) from water, the purpose of this study was to prepare a novel graphene nano iron zinc (rGO/NZV-FeZn) photocatalyst via …Web
اقرأ أكثرAntimony In Water (Everything You Need to Know in 2023)
Antimony is a dangerous drinking water contaminant, so if you discover it in your water, you should consider removing it with an at-home treatment solution. Water filters that reduce or remove antimony include: 1. Reverse osmosis 2. Water distillers 3. Activated carbon filters 4. Ultrafiltration systems Not …
اقرأ أكثرA review of removal technology for antimony in aqueous solution
Antimony (Sb) and its compounds, toxic metalloid, have been classified as high-priority pollutants. Increasing Sb released into the water environment by natural processes and anthropogenic activities, which exposure threatens to human health and ecosystems. Therefore, it is of unquestionable importance to remove Sb from polluted …Web
اقرأ أكثرA review of removal technology for antimony in aqueous solution
32081315 10.1016/j.jes.2019.12.008 Antimony (Sb) and its compounds, toxic metalloid, have been classified as high-priority pollutants. Increasing Sb released into the water …Web
اقرأ أكثرNew insights into the removal of antimony from water using an …
Thus, better antimony remediation or removal techniques can have wider applications ranging from domestic water treatment and industrial effluent remediation to safe isolation of radioactive waste ...Web
اقرأ أكثرA review of the environmental chemical behavior, detection and
Its adsorption capacity is higher than that of single metal oxide, and it can remove the low concentration of antimony in water. Li et al. compared the removal effect of FeOOH, ZrOOH and Fe–Zr composite oxide on Sb(V) (Li et al., 2012). The results showed that the composite adsorbent had the largest adsorption capacity and the best …Web
اقرأ أكثرRemoval of antimonate (Sb(V)) and antimonite (Sb(III)) from …
An Effective Method to Remove Antimony in Water by Using Iron-Based Coagulants. Kuan-Hua Cheng Hongtao Wang Jie Li Fengting Li. Environmental Science, Chemistry ... Water. 2019; The effectiveness of antimony (Sb) removal by using iron-based coagulants was investigated in this study. The effects of pH, coagulant types and dose, …Web
اقرأ أكثرA critical review on adsorptive removal of antimony from waters
Introduction. Antimony (Sb), as a toxic non-essential element, is frequently detected in the environment due to natural and human activities. Currently, a dramatic increase in Sb concentration in the water environment is occurring because of a rapid increase in its industrial use, including mining and smelting processes and the production …Web
اقرأ أكثرRecovery and valorization of tannins from a forest waste as an
Techniques to remove antimony from these sources, considering drinking water production or irrigation, are also necessary. Coagulation with ferric salts is commonly applied (Guo et al., 2009), but may be environmentally disadvantageous due to the considerable doses of chemicals used and the formation of toxic sludge.Web
اقرأ أكثرArsenic Treatment Technology Demonstrations | US EPA
EPA's arsenic demonstration program's three rounds of projects funded 50 small, full-scale arsenic removal systems in 26 different states impacting over 60,000 consumers. In all cases, the states' drinking water agencies provided support in the selection and permitting of the technology being demonstrated.Web
اقرأ أكثرRemoval of Antimony(III) and Antimony(V) from water samples …
Addressing antimony (Sb) contamination, which is caused by the use of Sb compounds in various industries, is crucial. This study aims to compare two different Sb removal mechanisms: ion exchange and chelation. Therefore, two different water-soluble polymers-glycidyl methacrylate-N-methyl-D-glucamine …Web
اقرأ أكثرRemoval of Antimony(V) from Drinking Water Using nZVI/AC: …
Antimony (Sb) traces in water pose a serious threat to human health due to their negative effects. In this work, nanoscale zero-valent iron (Fe 0) supported on activated carbon (nZVI) was employed for eliminating Sb(V) from the drinking water.To better understand the overall process, the effects of several experimental variables, including …Web
اقرأ أكثرRemoval of Antimony(III) and Antimony(V) from water samples …
The NMG-containing polymer was used to remove Sb(III) from an antimony mine water sample. 2. Experimental2.1. Chemicals. KI (Merck, Germany), H 2 SO 4 (Merck, Germany), and ascorbic acid (Carlo Erba, France) were used for the colorimetric assay of Sb. Glycidyl methacrylate (GMA) and NMG monomers were used to produce the …Web
اقرأ أكثرAn E by Using Iron-Based Coagulants
Guo et al. found that Sb(III) was easier to remove by coagulation with FC than Sb(V) [18]. In natural aqueous environments, many co-existing matters, including competing ions and organic matters, could interfere with the removal of Sb by coagulation. Moreover, the oxidization process can a ect the state and removal of Sb in water by coagulation ...Web
اقرأ أكثرRemoval of antimony(V) and antimony(III) from drinking water by
In this study, antimony removal from drinking water with coagulation–flocculation–sedimentation (CFS) is comprehensively investigated with …Web
اقرأ أكثرAntimony removal from water and wastewater by different
"water treatment" "antimony removal", and "adsorption" were used to retrieve proper papers. After a thorough search and removing articles that were not directly related to Sb removal from water, a total of 131 original papers were identified as eligible to be included within the review. The review articles providing a perceptionWeb
اقرأ أكثرRemoval performance and mechanisms of Pb(II) and …
Antimonate is the dominant form of antimony (Sb) in Sb mine water. The treatment of high-Sb mine water essentially reduces the discharge of antimonate oxyanions ([Sb(OH)6]⁻) in it.Web
اقرأ أكثرRemoval of Antimony(V) from Drinking Water Using nZVI/AC: …
Adsorption, precipitation, and the production of Sb-Fe minerals are the key mechanisms governing the zero-valent iron-mediated removal of Sb(V) from water. The …Web
اقرأ أكثرRemoval of antimony (III) and antimony (V) from drinking water by
However, antimony removal from drinking water with the use of CFS has only recently been investigated [37], [38]. Ferric chloride (FC) coagulation was suggested an effective treatment technique for antimony removal, while aluminum sulfate (AS) coagulation was demonstrated to be impractical [38].Web
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