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Aqueous antimony (Sb) pollution from human activity is of great concern in drinking water due to its adverse health effect. Magnetic Fe 3 O 4 particles, with high separation ability from solution, have been considered as a low-cost Sb adsorbent for contaminants. However, the limited adsorption capacity has restricted its practical …
Antimony (Sb) is classified as a toxic pollutant of high priority, because its effects on human health (toxicity) are similar to those of arsenic. However, unlike arsenic, the removal of antimony from polluted waters is still not …
1. Introduction. As a metalloid, Antimony (Sb) contamination resulting from anthropogenic activities such as mining and industrial production [1] is a global environmental concern. China has been severely suffered from Sb pollution, and the aqueous concentration of Sb could reach ~ 30 mg L-1 in some mining areas [2].In natural …
1. Introduction. Antimony (Sb) and its compounds are ubiquitous in the environment due to natural processes and the consequences of modern industrial activities [1,2].High levels of Sb pollution, that is, 1000, 239 and 2–6384 µg/L, have been found in water bodies near Sb mines in Slovakia, the Kantishna Hills mining district (Alaska, USA) …
However, unlike arsenic, the removal of antimony from polluted waters is still not well understood. In. Antimony (Sb) is classified as a toxic pollutant of high priority, because its effects on human health (toxicity) are similar to those of arsenic. However, unlike arsenic, the removal of antimony from polluted waters is still not well ...
Recently researchers have focused on several aspects of adsorbents, such as low-cost, rapid reaction, high selectivity and efficiency, reusability, ease of operation and maintenance, availability and flexibility. In this review, we attempt to summarize …
Antimony (Sb), a global and priority controlled pollutant, causes severe environmental issues. Bioremediation by microbial communities containing sulfate-reducing bacteria (SRB) is considered to be among the safest, economical, and environmentally friendly methods to remove Sb from wastewater. However, the roles of SRB species in …
Removal of Antimony Species, Sb(III)/Sb(V), from Water by Using Iron Coagulants. Manassis Mitrakas1, Zoi Mantha2, Nikos Tzollas2, Stelios Stylianou2, Ioannis …
During this adsorption process, the ion exchange between antimony and proton in the carboxyl, hydroxyl, and amide groups on the surface of Physcia tribacia …
As prior pollutants, antimony (Sb) and its compounds are carcinogenic to threaten human health. With the development of the industry, various Sb-contained pollutants have been released into nature, thus heavily damaging the ecological environment. Effectively treating Sb-polluted waterbodies is very important and have …
The adsorption state of antimony on the material interface is further consolidated by DFT simulation. The emphasis of this work is focused on the following expects (1) exploring the underlying synthesis mechanism of NH 3 ·H 2 O alkaline control; (2) clarifying the detailed antimony removal mechanism at the molecule level. We …
RO effectively removed arsenic, nitrate, antimony, uranium and vanadium, mostly with a >99% rejection rate. The POE RO coupled with dual plumbing (only …
The results indicated that the removal of Sb(III) by nZVI and A-nZVI followed the pseudo-second-order kinetic model and Langmuir isotherm model, but the removal of Sb(III) by A-nZVI was more ...
In this study, Pseudomonas aeruginosa PA-1, a manganese-oxidizing bacterium screened from the soil at a manganese mining area, was found to be tolerated to Sb(III) stress during the Mn(II) oxidation, and the generated biological manganese oxide (BMO) outperformed the identical type of Abiotic-MnOX in terms of oxidation and …
The removal of Sb from molten copper is of importance in the development of processes which can smelt copper concentrates directly into copper in a single furnace. A promising method is injection of oxygen and sodium carbonate in a modified anode furnace. This study encompassed a thermodynamic analysis of the impurity removal reactions and an …
mony removal was identified by XRD and XPS, which caused antimony reduction and facilitate further immo-bilization of removed antimony. The ironoxides encap-sulated antimony in their own structure and beta zeolite which they adhere. The theoretical model about the process was proposed to illustrate NZVI-zeolite en-hanced antimony removal …
There has published research focused on the removal of antimony using various materials, such as nanoscale zero valent iron (Dai et al. 2014 ), biological …
The location of the termination point of the stringent control activities where the concentration never exceeded 5 μg/L was 354 km from the spill location. Download : Download high-res image (213KB) Download : Download full-size image; Fig. 2. Dissolved antimony concentration within rivers since the spill on 24th December 2015.
Discussions of applying the adsorption technique for the removal of antimony from water are scarce in the literature (Deorkar and Tavlarides, 1997, ... Zeta potential measurements showed that the point of zero charge (PZCs); at which surface charge equals to zero, for the pristine MWCNTs was found to be 5.4, which indicated that at a …
The Fe solubility substantially affects the Sb removal at a certain pH range, while the HDD of the precipitates plays an insignificant role in Sb removal. The presence of divalent cations brings the ζ-potential of the precipitates close to point of zero charge (pzc), thus enhancing the Sb(V) removal at alkaline pH conditions.
This process ensured that antimony was preferentially condensed into the gas phase, and impurities with high boiling points, such as Ag, Sn, Cu, and Mn, were left in the liquid phase for removal. In contrast, HLVD first caused antimony and low-boiling-point impurities to enter the gas phase in the high-temperature stage to remove the high ...
In this paper, we proposed a molten salt electrolysis method to separate Sb from liquid Pb-Sb alloys in terms of forming a solid Ca-Sb intermetallic at the top of the liquid Pb-Sb cathode. The electrochemical separation process was performed in molten NaCl-CaCl 2. The content of Sb (atomic percent) in the Pb-Sb alloy was reduced from 1% to …
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.
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 ...
S-nZVI@GO displayed good capacity for antimony removal under aerobic conditions. • High antimony removal was maintained over a wide range of pH. • S-nZVI@GO activated molecular oxygen via a single electron pathway. • •O 2 − and H 2 O 2 were important active oxygen species • Antimony removal was related to oxidation …
Tin dioxide and its antimony doped counterpart were synthesized using traditional sol–gel procedure. The metal oxides were then turned into composites by mixing them with polyacrylonitrile (PAN) and composite spheres ready for use in traditional column applications were obtained. The characterization of materials was investigated by X-ray …
Introduction. Antimony (Sb) is a metalloid element that exists in the environment mainly as Sb(III) or Sb(V). The common Sb-containing minerals include stibnite (Sb 2 S 3) and valentinite (Sb 2 O 3), which are frequently associated with copper, silver, or lead ores, coal, and petroleum (Filella et al. 2002).Correspondingly, mining and smelting activities and …
Semantic Scholar extracted view of "Application of iron-based materials for removal of antimony and arsenic from water: Sorption properties and mechanism insights" by Yang Bai et al. ... Carbon block filters, commonly employed as point-of-use (POU) water treatment components, effectively eliminate pathogens and adsorb undesirable tastes, …
Given the adverse health effects of antimony (Sb), there is an increased focus on developing methods to remove this toxic metal from contaminated water bodies. To effectively remove Sb(V), a new nanostructured Fe-Cu-Al trimetal oxide was fabricated using co-precipitation method at ambient temperatur …
The exposure to Sb, either direct consumption of Sb or indirectly, may be fatal to the human health because both antimony and antimonide are toxic. Firstly, the …
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