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End-of-life electrical and electronic equipment is the potential secondary resource for economically-viable precious metals (PMs), e.g., gold (Au), palladium (Pd), or platinum (Pt). The hydrometallurgical processes produce acidic leachates during the recovery of PMs from waste sources, while the selective recovery of Au, Pd, or Pt from …
Another possible source of platinum is effluents from hospitals which contain platinum from excreted anti-neoplastic drugs, cisplatin and carboplatin. The concentration of platinum in the sewage of various hospitals and hospital departments was determined and the detected concentrations were approximately 110–176 ng/l Pt during …
Aquatic ecosystems can be considered as an important sink of platinum group elements. Different sources, like road runoff or industrial effluents are directly …
Monitoring of cytotoxic drugs residue in hospital effluent must be considered because of their toxicity and impact on aquatic pollution. Platinum-based cytotoxic drugs are complexes of Pt used in 50–70% of cancer patients. This study was performed during 2015, in two oncology wards of Qom hospitals in Iran. Sampling was carried out using …
Ancuta MUSINA1, Vasile LAVRIC2. The removal of platinum group metals from synthetic aqueous solutions using a phosphine and thiourea – functionalized resin, MPX-317, and …
Introduction. Platinum group metals (PGMs) are precious metals which are widely used in industries because of their specific physical and chemical properties such as corrosion resistance, high melting point, high mechanical strength and good ductility [1].The discharge of PGMs dilute streams represents a loss of unreclaimed water and valuable …
The Platinum Group metal (PGMs) possess specific properties and have been applied for decades in many industrial sectors, for instance as core materials of many electronic devices. They enter as crucial components of fuels cells and as the key ingredients of chemical catalysis used to remove automotive pollutants automatically [1].
1. Introduction. Platinum group metals (PGMs) are a group of six elements, namely iridium (Ir), osmium (Os), platinum (Pt), palladium (Pd), rhodium (Rh) and ruthenium (Ru) [1, 2].PGMs together with gold and silver are classified as noble or precious metals because of their high corrosion and oxidation resistance [1, 2, 3].The …
Platinum-based cytotoxic drugs are complexes of Pt used in 50–70% of cancer patients. This study was performed during 2015, in two oncology wards of Qom hospitals in Iran. Sampling was carried out using effluent of the oncology wards for measurement of total Pt concentration. Analysis was performed by ICP–OES, and limit of …
The removal of platinum group metals from synthetic aqueous solutions using a phosphine and thiourea – functionalized resin, MPX-317, and an anionic resin, SQD, was investigated. The batch methodology was used throughout the studies. The affinity and sorption capacity of selected metal ions Pd(II), Pt(II), Rh(III), Ir(III) were evaluated. The addition of sodium …
Zinc was used for the reduction of the platinum group metals (PGMs) in acidic effluents. Due to the increasing cost of zinc, sodium formate was investigated as an alternative reductant.
The Os record at PVO indicates that fossil combustion is a source of PGE to the environment. Platinum concentrations in gasoline are on the order of 1–6 ng L −1, corresponding to an emission of 0.1–0.6 ng km −1 for a gasoline consumption of 10 L per 100 km (Hoppstock and Michulitz 1997 ).
Solvent extraction of platinum group metals such as: Pd, Pt and Rh was carried out from chloride media with Kelex 100 in the absence and presence of a large amount of tin.
In hospital effluents, IF concentrations up to 6820 μg/L were already ... The performance of the newly developed DGT technique for the platinum group elements (PGEs) rhodium (Rh), platinum (Pt ...
Platinum Group Elements (PGEs) are contaminants of emerging environmental concern considering their continuous increasing use and subsequent release in the environment. ... Spatial mapping of PGE contamination was, to a certain extent, correlated with proxies of urban effluents. The use of Pt/Rh ratios reflected the dominant influence of PGE ...
Platinum group metals (PGM) were separated from gold processing plant effluent using biomaterials with novel functional groups. Different biomass wastes, such as wheat straw, canola meal, and wood bark nuggets were used and immobilized with dithiooxamide (DTO), ethylenediamine (EN), and primary amine (PA) to create 12 novel …
ELSEVIER The Science of the Total Environment 193 (1997) 179-184 Hospital effluents as a source for platinum in the environment Klaus Kiimmerer"~*, Eckard Helmersb "Institute of Environmental Medicine and Hospital Epidemiology, HugstetterstraJe 55, D-79106 Freiburg i.Br., German) bChemisrhes Institut im Amt fiir Umweltschutz, …
Published: 29 September 2021. Selective recovery of platinum from spent autocatalyst solution by thiourea modified magnetic biocarbons. Shao-Yi Lo, Wahid Dianbudiyanto & …
An effective solvent extraction-based method has been developed to recover individual platinum group metals (PGMs) (i.e. Pd, Pt and Rh) with high purity from acidic chloride media using phosphonium-based ionic liquid Cyphos IL 101 ([P 66614] + Cl −) diluted in xylene used as a model of industrial diluents such as SOLVESSO 150.The …
Highly selective extraction of platinum group metals with silica-based (poly)amine ion exchangers applied to industrial metal refinery effluents. J. Kramer, W. …
Up to date, the biosorption was only claimed as possible tool for the removal of the platinum-group metals (PGM) but the biosorption of Ru was never experimentally investigated. The PNSBs tested have adsorbed around 40 mg g (dry biomass)(-1) of the Ru contained in the real industrial effluents.
Selective and Efficient Platinum Group Metal Adsorption from Wastewater by Localized Triethylamine-Based Poly(Ionic Liquid) ... Pb2+, and Cd2+ from industrial effluents. After leaching with acidic ...
Platinum Group Metals (PGMs) These noble metals are close to each other on the periodic table. The platinum group metals (PGMs) are six transitional metal elements that are chemically, physically, and anatomically similar. The PGMs are the densest known metal elements. Exceptionally rare, the six metals naturally occur in the …
The platinum-group elements (PGEs)—platinum, palladium, rhodium, ruthenium, iridium, and osmium—are metals that have similar physical and chemical properties and tend to occur together in nature. PGEs are indispensable to many industrial applications but are mined in only a few places. The availability and accessibility of PGEs …
This led to emerging environmental contamination in different media such as air, road dust, soil, sediment, vegetation, and snow. The aim of this review is to …
Rhodium and platinum (Pt) concentrations were quantified through both stripping voltammetry and mass spectrometry in collected samples. Spatial mapping of PGE contamination was, to a certain extent, correlated with proxies of urban effluents. The use of Pt/Rh ratios reflected the dominant influence of PGE traffic emissions along the Douro …
The input to the environment of platinum group elements (e.g., Pt, Pd, Rh) associated with catalytic converters is becoming of increasing interest (Cinti et al., 2002; Dubiella-Jackowska and Namie ...
The demand for valuable metals such as rare earth elements and platinum group metals is rising fast in the context of the depletion of natural resources and international conflicts. Moreover, the future circular economy requires that raw material be recycled from waste by advanced methods such as adsorption by innovative porous …
Hospital effluents containing Pt drugs are also an important source for the emission of Pt into wastewater and sewage sludge (Kümmerer and Helmers, 1997). Kümmerer et al. (1999) reported a total emission of 14.2 kg of Pt in 1996 in Germany corresponding to this source vs. 187.2 kg of Pt from cars. ... Platinum group metals …
Article on Platinum Group Element distribution in water and marine biota from two impacted estuarine environments (Douro and Ave estuaries, Portugal), published in Marine Pollution Bulletin 192 on by Pedro Brito+6. ... Spatial mapping of PGE contamination was, to a certain extent, correlated with proxies of urban effluents. The …
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