scholarly journals Formation of Metal–Cyanide Complexes in Deliquescent Airborne Particles: A New Possible Sink for HCN in Urban Environments

2017 ◽  
Vol 51 (24) ◽  
pp. 14107-14113 ◽  
Author(s):  
Chiara Giorio ◽  
Daniele Marton ◽  
Gianni Formenton ◽  
Andrea Tapparo
Keyword(s):  
Urban Environments ◽  
Airborne Particles ◽  
Metal Cyanide ◽  
Cyanide Complexes

Highly active double metal cyanide complexes: Effect of central metal and ligand on reaction of epoxide/CO2

2007 ◽  
Vol 18 (7) ◽  
pp. 887-890 ◽  
Author(s):  
Xing Hong Zhang ◽  
Shang Chen ◽  
Xian Ming Wu ◽  
Xue Ke Sun ◽  
Fei Liu ◽  
...  
Keyword(s):  
Central Metal ◽  
Metal Cyanide ◽  
Highly Active ◽  
Cyanide Complexes

A Study of Airborne Wear Particles Generated From a Sliding Contact

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
Ulf Olofsson ◽  
Lars Olander ◽  
Anders Jansson
Keyword(s):  
Ultrafine Particles ◽  
Fine Particles ◽  
Urban Environments ◽  
Airborne Particles ◽  
Wear Particles ◽  
Coarse Particles ◽  
Sliding Velocity ◽  
Airborne Particle ◽  
Particle Generation ◽  
Pin On Disk

Recently, much attention has been paid to the influence of airborne particles in the atmosphere on human health. Sliding contacts are a significant source of airborne particles in urban environments. In this study airborne particles generated from a sliding steel-on-steel combination are studied using a pin-on-disk tribometer equipped with airborne-particle counting instrumentation. The instrumentation measured particles in size intervals from 0.01μm to 32μm. The result shows three particle size regimes with distinct number peaks: ultrafine particles with a size distribution peak around 0.08μm, fine particles with a peak around 0.35μm, and coarse particles with a peak around 2 or 4μm. Both the particle generation rate and the wear rate increase with increasing sliding velocity and contact pressure.

scholarly journals Bacterial Consortiums Able to Use Metal-Cyanide Complexes as a Nitrogen Source

Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1284
Author(s):  
María Isabel Igeño ◽  
Daniel Macías ◽  
María Isabel Guijo ◽  
Rubén Sánchez-Clemente ◽  
Ana G. Población ◽  
...  
Keyword(s):  
Nitrogen Source ◽  
Industrial Effluents ◽  
Free Form ◽  
Bacterial Strains ◽  
Pseudomonas Pseudoalcaligenes ◽  
Metal Cyanide ◽  
Biodegradation Process ◽  
Cyanide Complexes ◽  
Cyano Compounds

Most cyanide-containing industrial effluents also contain other cyano-derivatives and high amounts of metals and metal-cyanide compounds. For this reason, the biotreatment of these wastes requires the use of microorganisms capable to degrade all these different cyano-compounds and to tolerate metals. Pseudomonas pseudoalcaligenes CECT 5344 is a cyanotrophic bacterium capable of metabolize cyanide in its free form, but it is not very efficient at degrading metal-cyanide complexes. Therefore, for the optimization of the cyanide biodegradation process it is essential to find and characterize new bacterial strains, capable of assimilating metal cyanide-complexes, to complement the capacities of P. pseudoalcaligenes CECT 5344.

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