removal antimony 24

Removal of Antimony from Antimony Mine Flotation

As illustrated in Fig. 4, at increasing pH of the solution from 3 to 5, the efficiency of HA removal by the AEC-PS process was improved from 87.4 ± 4.5% to 94.3 ± 4.7%, which may be due to the ...

Water | Free Full-Text | An Effective Method to Remove Antimony …

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 …

(PDF) Adsorptive Removal of Antimony (III) Using Modified

About 95.22% and 90.42% removal of Sb (III) was achieved for Mt-HDTMA and Mt-TMPA respectively by reapplication of regenerated spent organoclays for Sb (III) removal within 24 hours contact time.

Pulse electrocoagulation combined with a coagulant to remove antimony …

Then, polymeric aluminum chloride (PAC) was applied as a coagulant to improve the floc structure. The best strategy for PAC addition was 0.6 mg/L in 5 min and 0.3 mg/L in 18 min, and the removal ...

ANTIMONY REMOVAL TECHNOLOGY FOR MINING …

Description: This report assessed the current state-of-the-art of antimony removal technology for mining industry wastewaters. Through literature review and personal interviews, it was found that most mines and mills reporting significant quantities of antimony in their raw wastewater had approximately 0.1 to 0.2 mg/l antimony remaining …

The Removal of Antimony by Novel NZVI-Zeolite: the Role …

Nanoscale zero valent iron (NZVI) supported on beta zeolite was synthesized by refined method for the removal of Sb(III) and characterized with TEM-EDX, XRD, XPS, BET, and Zetasizer. The results showed that NZVI existed as apparent ones doping on surface of beta zeolite (average size 20–40 nm) and fine ones formed in …

Removal of Antimony in Wastewater by Antimony …

Removal of Antimony in Wastewater by Antimony Tolerant Sulfate-Reducing Bacteria Isolated from Municipal Sludge. He Li, 1,2,3,† Yue Fei, 1,2,3,† …

Hollow rod assembly of Fe-MnO2 nanosheets prepared by in …

Antimony pollution is of increasing concern and designing efficient adsorbents to solve this problem of antimony removal from wastewater has shown significance in both science and practical application. ... [23], [24]. Iron oxides are the main adsorption sites for antimony [25], besides, Bai et al. pointed out that the doping of iron …

Recent advances in antimony removal using carbon …

23 Citations. 1 Altmetric. Explore all metrics. Abstract. Recently, special attention has been deserved to environmental risks of antimony (Sb) element that is of …

Removal of Antimony Species, Sb(III)/Sb(V), from Water …

In the present study the removal of common antimony species in water, namely, Sb(III) and Sb(V), was investigated by the addition of iron-based coagulants. The applied coagulants were Fe(II), Fe(III), and equimolar mixed Fe(II)/Fe(III) salts and the experiments were performed with realistic antimony concentrations in the range 10–100 g/L, by ...

Toxics | Free Full-Text | Removal of Antimony(V) …

Considering the removal rate of Sb (V), reusability, operability, no release of Sb (V) after being incorporated into the iron (hydr)oxides structure, it can be concluded that WMF coupled with ZVI …

The Removal of Antimony by Novel NZVI-Zeolite: the Role …

Iron transformation accompanied with antimony removal was identified by XRD and XPS, which caused antimony reduction and facilitate further immobilization of removed antimony. The iron oxides ...

Toxics | Free Full-Text | Removal of Antimony(V) from Drinking Water

Antimony (Sb) traces in water pose a serious threat to human health due to their negative effects. In this work, nanoscale zero-valent iron (Fe0) 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 …

Comprehensive oxidative process for the removal of antimony …

13.24: O: 528.05: 74.57: Total: 100.00: 2.3. ... The pH at the start of the antimony removal process is the pH of the solution after the removal of the oxide coated carbon steel coupons that were immersed overnight in the reaction vessel. Download : Download high-res image (494KB)

Optimization, Kinetics, Isotherms, and Thermodynamics Studies …

In this study, electrocoagulation (EC) with hybrid Fe–Al electrodes was used to remove antimony from contaminated surface water. Response surface methodology was applied to investigate the interactive effects of the operating parameters on antimony removal and optimize these variables. Results showed that the relationship between …

Antimony precipitation and removal by antimony …

25-M can remove 80% of Sb (III) and 88% of Sb (V) via bioprecipitation as valentinite and mopungite, respectively. •. EPS produced by 25-M may play the …

Removal of antimony contaminant in water by …

Abstract. Removal of antimony (III) and antimony (V) contaminant in water by electrocoagulation process was investigated. The effects of current density, initial pH value, different coexisting ...

Limonite as a Natural Adsorbent for the Removal of Antimony…

Natural limonite, which contains mainly nano-sized iron and manganese oxides, is widely distributed worldwide. This study investigated the kinetics, thermodynamics, and the effects of pH, ion strength, and anions on the adsorption of Sb(III) via limonites sampled from Xinqiao and Yeshan (Tongling, China). Results show that …

Antimony- Drinking Water Contaminants, Facts/Removal …

Drinking Water Contaminants- Antimony. ... MCLs are set as close to the MCLGs as possible, considering the ability of public water systems to detect and remove contaminants using suitable treatment technologies. The MCL has also been set at 6 ppb because EPA believes, given present technology and resources, this is the lowest level to which ...

Removal of antimony from model solutions, mine effluent, …

In addition, antimony removal can be based on surface adsorption, which can be physical or chemical. In the case of LDH materials, ... J Environ Sci. 2012; 24:1197–1203. doi: 10.1016/S1001-0742(11)60932-7. [Google Scholar] Lu H, Zhu Z, Zhang H, Zhu J, Qiu Y. Simultaneous removal of arsenate and antimonate in simulated and practical water ...

Water | Free Full-Text | An Effective Method to …

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 …

Removal of antimony from model solutions, mine effluent, …

The Sb removal efficiencies (R%) are indicated by a solid line, and the adsorption capacities (q) are indicated by a dashed line. C0: ~18 mg L⁻¹, initial pH: 4, contact time: 24 h, and T: 22 ...

Antimony contamination, consequences and removal …

Antimony and antimonide are dangerous substances with chronic toxicity and potential carcinogenicity, once it enters the supergene environment, it will cause toxic effects to the animal and plant body (He et al., 2012).Antimony and antimonide enter into human beings through the pathway of the respiratory tract, digestive tract, and skin (Fig. …

Unlocking low-temperature and anti-SO2 poisoning

The neighboring antimony (Sb) ... [24]. Therefore, the acidic nature over the catalyst is of vital importance for the catalytic removal of CVOCs and NO x. Pyridine-IR profiles were shown in Fig. 1 b, ... The removal of CB mainly follows L-H mechanism, where CB molecules and their corresponding instantaneous intermediates were adsorbed on …

Review of recently used adsorbents for antimony …

Compared with the raw CNT, the adsorption capacity of Fe 2 O 3 /CNT for Sb (III) was lifted from 3.01 to 6.23 mg/g. The adsorption of Sb (III) by Fe 2 O 3 /CNT …

[PDF] Removal of Antimony in Wastewater by Antimony …

The results demonstrated the potential roles that pure cultures of SRB species may play in Sb removal and the use of Sb-tolerant SRB strains for Sb remediation. Antimony (Sb), a global and priority controlled pollutant, causes severe environmental issues. Bioremediation by microbial communities containing sulfate-reducing bacteria …

Recent advances in antimony removal using carbon-based …

Recently, special attention has been deserved to environmental risks of antimony (Sb) element that is of highly physiologic toxicity to human. Conventional coagulation and ion exchange methods for Sb removal are faced with challenges of low efficiency, high cost and secondary pollution. Adsorption based on carbon nanomaterials …

Antimony precipitation and removal by antimony hyper

1. Introduction. Antimony (Sb) is widely used in the manufacturing of semiconductors, diodes, flameproof retardants, lead hardener, batteries, small arms, tracer bullets, automobile brake linings, and pigments, which results in serious antimony contamination in the environments (Nishad and Bhaskarapillai, 2021).Sb contamination …

Removal of Antimony from lead?

Dec 2007. Location. soda springs Id. Posts. 28,088. if it's just antimony you can swage it and still retain the softness. you might could use a borate to capture and remove the antimony from the alloy. but to do it at home would take about 30 pounds of borate to clean 15 pounds of lead and quite a bit of time.

Efficient removal of antimony by a facile liquid-controlled …

1. Introduction. The commercial application of antimony nowadays has been widely used in storage batteries, flame-retardant formulations, alloys and so on [1], [2], [3], [4].The great quantity demand for antimony in production and life caused severe environmental pollution, especially in China [5], [6].According to the research of the …