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

Targeted removal, immobilization and disposal of the uranium component has been confirmed, thus eliminating the radiological hazard. However, significant concentrations of antimony ([Sb] ≥ 25-50 mg L-1) remain in effluent from the process, which require removal in compliance with Korean wastewater regulations. Antimony(III/V) removal via co ...Web

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

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

The NMG-containing polymer was used to remove Sb(III) from an antimony mine water sample. Section snippets 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

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

Therefore, pre-oxidation is usually helpful for arsenic removal with CFS, while for antimony removal, keeping the natural water under anoxic conditions is more favorable.Acknowledgments. This work was supported by National Natural Science Foundation of China (NSFC) (Grant Nos. 20777009, 40873077 and 20807006) and also …Web

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 optimum pH for Sb(V) removal with ferric chloride ...Web

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 water.Web

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

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

Pulse electrocoagulation (PEC) was used to evaluate the treatment of synthetic solutions containing antimony (Sb). The effects of electrode materials, distance between electrodes, duty ratio, current frequency, and initial pH on the removal efficiency were investigated.The removal of Sb reached 93.5% when the distance between the Fe …Web

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

1. 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

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

Arsenic and Antimony Removal from Drinking Water by Point-of-Entry Reverse Osmosis Coupled with Dual Plumbing Distribution U.S. EPA Demonstration Project at Carmel Elementary School in Carmel, ME. Final Performance Evaluation Report Office of Research and Development, Cincinnati, OH: EPA/600/R-11/026. [Google Scholar]Web

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

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

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

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

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

In this study, antimony removal from drinking water with coagulation–flocculation–sedimentation (CFS) is comprehensively investigated with …Web

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

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

As highly toxic and carcinogenic substances, antimony and arsenic often coexist and cause compound pollution. Heavy metal pollution in water significantly threatens human health and the ecological environment. This article elaborates on the sources and hazards of compound antimony and arsenic contamination and systematically discusses …Web

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

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

Due to the harmful effects of antimony, its removal from water and wastewater is mandatory [1]. The World Health Organization [7] established a guideline value of 20 μg L −1 for Sb in drinking water, but most countries have committed to stricter legal values, such as 6 μg L −1 in the United States [1] and 5 μg L −1 in the European ...Web

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

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

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

1. Introduction. In recent years, increasing antimony (Sb) contamination has attracted considerable attention. Aside from natural activities, most Sb contaminations are caused by human activities, such as mining, coal combustion, textile industry, and other industrial activities [[1], [2], [3]].The diffusion of Sb has seriously damaged the security of …Web

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

The biosorption behaviors of antimony(III) by cyanobacteria Microcystis were investigated under various environmental parameters to evaluate the potential of Microcystis to remove Sb(III). The maximum biosorption capacity was determined to be 4.88 mg/g (dry weight) at pH 4.0.The biosorption process followed the pseudo-second-order rate kinetics.Web

reduce the amount of antimony so that it is consistently below that level. The following treatment methods have been approved by EPA for removing antimony: …Web

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 …

Clean TeQ Water's CIF ® (continuous ionic filtration) technology can be used to reduce or remove arsenic and antimony to very low levels. Arsenic and Antimony in Water Arsenic (As) and antimony (Sb) both appear in …Web