scholarly journals Salt Solubilities in Aqueous Solutions of NaNO3, NaNO2, NaCl, and NaOH: A Hofmeister-like Series for Understanding Alkaline Nuclear Waste

ACS Omega ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 15149-15157 ◽  
Author(s):  
Jacob G. Reynolds
Keyword(s):  
Aqueous Solutions ◽  
Nuclear Waste

Selective removal of cesium and strontium using porous frameworks from high level nuclear waste

2016 ◽  
Vol 52 (35) ◽  
pp. 5940-5942 ◽  
Author(s):  
Briana Aguila ◽  
Debasis Banerjee ◽  
Zimin Nie ◽  
Yongsoon Shin ◽  
Shengqian Ma ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Nuclear Waste ◽  
Selective Removal ◽  
High Level Nuclear Waste ◽  
Presence And Absence ◽  
High Level ◽  
Exchange Properties ◽  
Competing Ions

A water stable MOF, MIL-101-SO3H, shows excellent Cs+ and Sr2+ ion exchange properties in aqueous solutions in the presence and absence of competing ions.

α-Crystalline polyantimonic acid - an adsorbent for radiostrontium, and a potential primary barrier in waste repositories

2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
A. Bilewicz ◽  
J. Narbutt
Keyword(s):  
Portland Cement ◽  
Aqueous Solutions ◽  
Nuclear Waste ◽  
Flow Rate ◽  
Chelating Agents ◽  
Dynamic Adsorption ◽  
Liquid Radioactive Wastes ◽  
Polyantimonic Acid ◽  
The Matrix ◽  
Waste Repositories

Dynamic adsorption of radiostrontium was studied on α-crystalline polyantimonic acid grains from aqueous solutions containing common components of liquid radioactive wastes - salts and chelating agents at moderate concentrations. Effective decontamination of the neutral solutions has been achieved, in the amounts of a few thousand bed volumes, depending on the flow rate through the column. After encapsulation in the matrix of Portland cement, the loaded adsorbent can serve as an effective primary barrier in nuclear waste repositories.

Efficient extraction of sulfate from water using a Zr-metal–organic framework

2016 ◽  
Vol 45 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Ashlee J. Howarth ◽  
Timothy C. Wang ◽  
Salih S. Al-Juaid ◽  
Saadullah G. Aziz ◽  
Joseph T. Hupp ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Nuclear Waste ◽  
Metal Organic Framework ◽  
Safe Disposal ◽  
Waste Vitrification ◽  
Metal Organic ◽  
Efficient Extraction ◽  
And Storage ◽  
Organic Framework

A Zr-based metal–organic framework, NU-1000, is used to extract sulfate from aqueous solutions containing competitive anions. This is of interest for application in the safe disposal and storage of nuclear waste where sulfate anions are known to interfere with the waste vitrification process.

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

Imaging polymers, proteins and dna in aqueous solutions with the atomic force microscope

1989 ◽  
Vol 47 ◽  
pp. 32-33
Author(s):  
S.A.C. Gould ◽  
B. Drake ◽  
C.B. Prater ◽  
A.L. Weisenhorn ◽  
S.M. Lindsay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dna Sequencing ◽  
Aqueous Solutions ◽  
Atomic Force Microscope ◽  
Piezoelectric Crystal ◽  
Atomic Force ◽  
Structure Of Molecules ◽  
Optical Lever

The atomic force microscope (AFM) is an instrument that can be used to image many samples of interest in biology and medicine. Images of polymerized amino acids, polyalanine and polyphenylalanine demonstrate the potential of the AFM for revealing the structure of molecules. Images of the protein fibrinogen which agree with TEM images demonstrate that the AFM can provide topographical data on larger molecules. Finally, images of DNA suggest the AFM may soon provide an easier and faster technique for DNA sequencing.The AFM consists of a microfabricated SiO2 triangular shaped cantilever with a diamond tip affixed at the elbow to act as a probe. The sample is mounted on a electronically driven piezoelectric crystal. It is then placed in contact with the tip and scanned. The topography of the surface causes minute deflections in the 100 μm long cantilever which are detected using an optical lever.

Sign in / Sign up

Export Citation Format

Share Document