Applications of natural zeolites in the treatment of nuclear wastes and fall-out

2000 ◽  
Author(s):  
A. Dyer
Keyword(s):  
Natural Zeolites ◽  
Nuclear Wastes

The Effects of Carbonate-Bicarbonate Concentration on Empirical Corrosion Diagram of Mild Steel as a Material of Geological Disposal Package for High Level Nuclear Wastes

1996 ◽  
Vol 451 ◽  
Author(s):  
Guen Nakayama ◽  
Yuichi Fukaya ◽  
Masatsune Akashi
Keyword(s):  
Mild Steel ◽  
Human Life ◽  
General Corrosion ◽  
Nuclear Wastes ◽  
Bicarbonate Concentration ◽  
Sulfate Ions ◽  
Geological Disposal ◽  
Groundwater Environment ◽  
High Level ◽  
Corrosion Diagram

ABSTRACTIn the scheme for geological disposal of high level radioactive nuclear wastes, the burial pit is to be isolated from the sphere of human life by a multiple-barrier system, which consists of an artificial barrier, composed of a canister, an overpack and a bentonite cushioning layer, and a natural barrier, which is essentially the bedrock. As the greatest as well as essentially the sole detriment to its integrity would be corrosion by groundwater. The groundwater comes to it seeping through the bentonite zone, thereby attaining conceivably the pH of transition from general corrosion to passivity, pHd, the behaviors of mild steel in such a groundwater environment have been examined. It has been shown that the pHd is lowered (enlargement of the passivity domain) with rising temperature and carbonate-bicarbonate concentration, while it is raised (enlargement of the general corrosion region) with increasing concentrations of chloride and sulfate ions.

Development of Natural Zeolites for Their Use in Water-Treatment Systems

2011 ◽  
Vol 5 (2) ◽  
pp. 89-99 ◽  
Author(s):  
K. Margeta ◽  
B. Vojnovic ◽  
N. Zabukovec Logar
Keyword(s):  
Water Treatment ◽  
Natural Zeolites

scholarly journals CN linked covalent organic framework for the efficient adsorption of iodine in vapor and solution

RSC Advances ◽  
2021 ◽  
Vol 11 (18) ◽  
pp. 10512-10523
Author(s):  
Sanan Song ◽  
Yue Shi ◽  
Ning Liu ◽  
Fengqi Liu
Keyword(s):  
Public Safety ◽  
Nuclear Wastes ◽  
Covalent Organic Framework ◽  
Organic Framework

Volatile nuclear wastes, such as iodine, have received worldwide attention because it poses risks to public safety and pollutes the environment.

scholarly journals Worldwide Research Analysis on Natural Zeolites as Environmental Remediation Materials

2021 ◽  
Vol 13 (11) ◽  
pp. 6378
Author(s):  
Fernando Morante-Carballo ◽  
Néstor Montalván-Burbano ◽  
Paúl Carrión-Mero ◽  
Kelly Jácome-Francis
Keyword(s):  
Environmental Remediation ◽  
Waste Treatment ◽  
Adsorption Properties ◽  
Natural Zeolites ◽  
Removal Of Heavy Metals ◽  
Long Time ◽  
Notable Increase ◽  
Accelerated Growth ◽  
Treatment Alternatives ◽  
Research Analysis

Society faces a significant problem in regards to the spread of harmful products in the environment, primarily caused by accelerated growth and resource consumption. Consequently, there is a need for materials to be processed in less harmful ways and to remedy the contaminated sources they generate. Microporous materials have been studied for a long time and are used in waste treatment alternatives. Natural zeolites, on which this study is based, are attractive to the scientific and technological communities, due to their numerous applications as decontaminants and adsorption properties. This study analyzes the intellectual structures of publications related to natural zeolites in environmental remediation, using bibliometric methods to determine their volumes and trends. The methodology comprises of an analysis based on 1582 articles, using VOSviewer software, with data from 1974 to 2020, via the Scopus database. Results reflect a notable increase in publications from the end of the 1990s; the greatest contribution in the area comes from Eurasian countries. The study considers that development in this line of research will continue to increase and serve as a great contribution to preserve the environment in coming years, with themes that focus on water treatment (e.g., drinking water, wastewater, greywater), removal of heavy metals, ammonium, ammonia, and construction.

scholarly journals Effects of natural zeolites on field-scale geologic noble gas transport

2020 ◽  
Vol 220-221 ◽  
pp. 106279
Author(s):  
Joshua Feldman ◽  
Matthew Paul ◽  
Guangping Xu ◽  
David X. Rademacher ◽  
Jennifer Wilson ◽  
...  
Keyword(s):  
Gas Transport ◽  
Noble Gas ◽  
Natural Zeolites ◽  
Field Scale

Thermal stability and heavy metal (As5+, Cu2+, Ni2+, Pb2+ and Zn2+) ions uptake of the natural zeolites from the Philippines

2019 ◽  
Vol 6 (8) ◽  
pp. 085204 ◽  
Author(s):  
Eleanor Olegario ◽  
Christian Mark Pelicano ◽  
Jenichi Clairvaux Felizco ◽  
Herman Mendoza
Keyword(s):  
Thermal Stability ◽  
Heavy Metal ◽  
The Philippines ◽  
Natural Zeolites

Congress Grapples with Nuclear Wastes

1985 ◽  
Vol 63 (40) ◽  
pp. 19-20
Author(s):  
WIL LEPKOWSKI
Keyword(s):  
Nuclear Wastes
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