Argon, krypton and xenon adsorption coefficients on various activated carbons under dynamic conditions

Experimental Study on Dynamic Adsorption of Xenon over Adsorbents

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.739.142 ◽

2013 ◽

Vol 739 ◽

pp. 142-147

Author(s):

Guo Li He ◽

Hong Hong Yi ◽

Xiao Long Tang ◽

Fen Rong Li ◽

Yun Dong Li ◽

...

Keyword(s):

Adsorption Capacity ◽

Activated Carbons ◽

Coconut Shell ◽

Dynamic Adsorption ◽

13X Zeolite ◽

Zeolite 13X ◽

Xenon Adsorption ◽

Zeolite 5A ◽

5A Zeolite ◽

Coconut Shell Activated Carbon

Selecting effective xenon adsorbents is important for preventing significant global nuclear proliferation. The adsorption capacity of coconut shell activated carbons (SAC),zeolite 10X,zeolite 5A, zeolite 13X were researched and the Xenon adsorption of the coconut shell activated carbon modified by KOH(SAC/KOH-1 and SAC/KOH-2) were compared in this paper. The factors of temperature and flow rate that influenced the dynamic adsorption of xenon by 10X were discussed. The order of the Xenon adsorption capacity is as follows: zeolite 10X, SAC/KOH-2, SAC/KOH-1, SAC, zeolite 13X, zeolite 5A.

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Characterisation under static and dynamic conditions of commercial activated carbons for their use in wastewater plants

Applied Surface Science ◽

10.1016/j.apsusc.2005.11.026 ◽

2006 ◽

Vol 252 (17) ◽

pp. 6058-6063 ◽

Cited By ~ 5

Author(s):

E. Sabio ◽

F. Zamora ◽

J.F. González ◽

C.M. González García ◽

S. Román ◽

...

Keyword(s):

Activated Carbons ◽

Dynamic Conditions

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Removal of diuron and amitrole from water under static and dynamic conditions using activated carbons in form of fibers, cloth, and grains

Water Research ◽

10.1016/j.watres.2007.02.059 ◽

2007 ◽

Vol 41 (13) ◽

pp. 2865-2870 ◽

Cited By ~ 37

Author(s):

M.V. López-Ramón ◽

M.A. Fontecha-Cámara ◽

M.A. Álvarez-Merino ◽

C. Moreno-Castilla

Keyword(s):

Activated Carbons ◽

Dynamic Conditions

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A computer-controlled experimental facility for krypton and xenon adsorption coefficient measurements on activated carbons

Nuclear Engineering and Design ◽

10.1016/j.nucengdes.2015.03.019 ◽

2015 ◽

Vol 288 ◽

pp. 175-182 ◽

Cited By ~ 2

Author(s):

Daniele Del Serra ◽

Donato Aquaro ◽

Dahmane Mazed ◽

Fabio Pazzagli ◽

Riccardo Ciolini

Keyword(s):

Activated Carbons ◽

Adsorption Coefficient ◽

Experimental Facility ◽

Xenon Adsorption ◽

Computer Controlled

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Suitability of Various Indigenously Prepared Activated Carbons for the Adsorption of Mercury(II) Ions

Toxicological and Environmental Chemistry ◽

10.1080/02772240309816 ◽

2003 ◽

Vol 84 (1-4) ◽

pp. 7-19 ◽

Cited By ~ 4

Author(s):

Nagarethinam Kannan ◽

Ananthakrishnan Rajakumar

Keyword(s):

Activated Carbons

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Neutrophil Derived Cathepsin G Induces Potentially Thrombogenic Changes in Human Endothelial Cells: a Scanning Electron Microscopy Study in Static and Dynamic Conditions

Thrombosis and Haemostasis ◽

10.1055/s-0038-1648825 ◽

1994 ◽

Vol 72 (01) ◽

pp. 140-145 ◽

Cited By ~ 13

Author(s):

Valeri Kolpakov ◽

Maria Cristina D'Adamo ◽

Lorena Salvatore ◽

Concetta Amore ◽

Alexander Mironov ◽

...

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Extracellular Matrix ◽

Endothelial Cells ◽

Thrombus Formation ◽

Cathepsin G ◽

Arterial Segment ◽

Dynamic Conditions ◽

Activated Neutrophils ◽

Scanning Electron

SummaryActivated neutrophils may promote thrombus formation by releasing proteases which may activate platelets, impair the fibrinolytic balance and injure the endothelial monolayer.We have investigated the morphological correlates of damage induced by activated neutrophils on the vascular wall, in particular the vascular injury induced by released cathepsin G in both static and dynamic conditions.Human umbilical vein endothelial cells were studied both in a cell culture system and in a model of perfused umbilical veins. At scanning electron microscopy, progressive alterations of the cell monolayer resulted in cell contraction, disruption of the intercellular contacts, formation of gaps and cell detachment.Contraction was associated with shape change of the endothelial cells, that appeared star-like, while the underlying extracellular matrix, a potentially thrombogenic surface, was exposed. Comparable cellular response was observed in an “in vivo” model of perfused rat arterial segment. Interestingly, cathepsin G was active at lower concentrations in perfused vessels than in culture systems. Restoration of blood flow in the arterial segment previously damaged by cathepsin G caused adhesion and spreading of platelets on the surface of the exposed extracellular matrix. The subsequent deposition of a fibrin network among adherent platelets, could be at least partially ascribed to the inhibition by cathepsin G of the vascular fibrinolytic potential.This study supports the suggestion that the release of cathepsin G by activated neutrophils, f.i. during inflammation, may contribute to thrombus formation by inducing extensive vascular damage.

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