Desorption technologies for remediation of cesium …
Desorption techniques for Cs+ based on multiple sequential extractions can reportedly achieve an efficiency greater than 90%, and such approaches are likely to be important technologies for...
Cleaning Cesium Radionuclides from BN-350 Primary …
@article{osti_20840258, title = {Cleaning Cesium Radionuclides from BN-350 Primary Sodium}, author = {Romanenko, O G and Allen, K J and Wachs, D M and Planchon, H P and Wells, P B and Michelbacher, J A and Nazarenko, P and Dumchev, I and Maev, V and Zemtzev, B and Tikhomirov, L and Yakovlev, V and Synkov, A}, …
A study on the evaluation of cesium removal performance in soil washing
As a result of nuclear power plant accidents such as Chernobyl and Fukushima, and even their maintenance, the soil is contaminated due to the discharge of radioactive materials. ... {A study on the evaluation of cesium removal performance in soil washing process using flocculating agent}, author={Sun Il Kim and Jong Soon Song}, journal={Journal ...
A critical review on EDTA washing in soil remediation for
Some released PTEs and EDTA-Me remain in soil after EDTA washing, and can be adsorbed by plants during soil phytoremediation (Do Nascimento et ... Shao X, Arslan Z, McComb J, Chang T, Guo K, Celik A (2016) Remediation of lead-, arsenic-, and cesium-contaminated soil using consecutive washing enhanced with electro-kinetic …
A laboratory study of washing of SRS high-level waste …
@article{osti_10157536, title = {A laboratory study of washing of SRS high-level waste radioactive sludge-evidence for insoluble sodium and cesium-137}, author = {Hay, M S and Bibler, N E}, abstractNote = {Experiments in the Shielded Cells at the Savannah River Technology Center were undertaken to simulate the full-scale sludge …
Simultaneous removal of suspended fine soil particles, …
@article{Lee2022SimultaneousRO, title={Simultaneous removal of suspended fine soil particles, strontium and cesium from soil washing effluent using inorganic flocculants}, author={Hyun-Kyu Lee and Byung-Moon Jun and Sun-Il Kim and Jong Soon Song and Tackjin Kim and Sung-Bong Park and Seeun Chang}, journal={Environmental …
Lessons Learned from Fast Flux Test Facility Experience
2.4.Cesium Release from Failed Fuel Pins and Transport within the Plant Although fuel cladding breaches have been relatively infrequent in sodium cooled reactors, when they do occur, radioactive cesium (134Cs and 137Cs) can be released to the coolant and become a significant source of radiological dose in the plant. Cesium can be effectively
Effective washing removal of radioactive cesium from soils …
Conventional washing methods release little radioactive cesium fixed in soils. Adding a Cs+ adsorbent to a suspension of Cs-contaminated soil rapidly removes the Cs+ released to the solution ...
Soil Washing | FRTR Remediation Technologies Screening …
Innovative Site Remediation Technologies: Design and Application, Vol. 3: Liquid Extraction Technologies Soil Washing, Soil Flushing, Solvent/Chemical. (1998) (PDF) (472 pp, 33 ) This book describes the design, application, and implementation of soil washing, soil flushing, and chemical extraction technologies for metals and organics. Battelle.
Effect of the counter anion of cesium on foliar uptake and
Inside plants, cesium distributes fast between the different plant organs and cells, but cesium in soil is extremely stable and remains for decades in the rhizosphere. ... with energy dispersive X-ray microanalysis showed that particles containing cesium remained on the leaf surfaces after washing. Also, nano-sized particles containing …
Desorption technologies for remediation of cesium …
Because some nuclear power plants are currently being decommissioned, a thorough review of remediation approaches would be useful. Here, chemical washing …
Decontamination of radioactive cesium …
Washing. Sorption materials. 1. Introduction. Nuclear industry activities have produced a series of serious radioactive contamination sites, at which 60 Co, 137 Cs, 90 …
How Is Fukushima's Fallout Affecting Marine Life?
Not surprisingly, they found no iodine-131, the isotope which along with cesium had been released in highest quantity from the damaged Dai-ichi nuclear power plant. Iodine-131, with its half-life of a mere eight days, was undetectable after a couple of months, Fisher explained. Cesium, of course, is a different story.
Processing of Hanford, WA, site nuclear waste in tanks …
The first industrial-scale processing of radioactive tank waste to prepare it for disposal has begun, site officials announced Wednesday. Early on Jan. 26, the Tank Side Cesium Removal System, or ...
Radionuclide Basics: Cesium-137 | US EPA
Radionuclide Basics: Cesium-137. Cesium (chemical symbol Cs) is a soft, flexible, silvery-white metal that becomes liquid near room temperature, but easily bonds with chlorides to create a crystalline powder. The most common radioactive form of cesium is Cs-137. Cesium-137 is produced by nuclear. for use in medical devices and gauges.
A study on the evaluation of cesium removal …
The most suitable method of removing radionuclides from soil contaminated as a result of unexpected accidents during dismantling and maintenance of nuclear …
The latest research trends in the removal of cesium from …
Cesium (Cs) has been reported to be the leading cause of thyroid cancer ... The strong research focus on radioactive waste treatment in Japan may be related to the Fukushima nuclear power plant accident. ... it can reduce exfoliation in the washing process and has a high reuse rate (Kim et al., 2019). These findings indicate the …
Determination of Cesium (CS+) Adsorption Kinetics and …
The U.S. Department of Energy's Office of Scientific and Technical Information
A study on the evaluation of cesium removal performance in soil washing
The washing conditions that achieved the highest cesium removal efficiency (81.3%) in field soil contaminated at 1.47 mg/kg were determined to be the following: a potassium concentration of 1 M, a ...
An analysis of a flushing effect on the electrokinetic-flushing …
In this study, we proposed a hybrid process that combines soil washing for extraction and selective adsorption for Cs-containing washing wastewater to treat cesium (Cs⁺)-contaminated soil.
A Glass Nightmare: Cleaning Up the Cold War's Nuclear …
The Hanford Vit Plant is designed to clean up the waste from that nuclear legacy. Photos: U.S. Department of Energy. Today the 1,500-square-kilometer site, roughly half the size of Rhode Island ...
Fukushima Soil Decontamination: Lessons learned
Credit: Evrard et al., SOIL 2019. Following the accident at the Fukushima nuclear power plant in March 2011, the Japanese authorities decided to carry out major decontamination works in the affected area, which covers more than 9,000 km 2 (3,500 m 2 ). On December 12, 2019, with most of this work having been completed, the scientific …
Cesium Removal from Nonexpandable Illite Clay by …
Extracting cesium (Cs) from nonexpandable illite clay is important in the remediation of radioactive Cs-contaminated soil. In this study, we investigated a chloride salt treatment …
Effective washing removal of radioactive cesium …
Abstract. Conventional washing methods release little radioactive cesium fixed in soils. Adding a Cs + adsorbent to a suspension of Cs-contaminated soil …
A study on the evaluation of cesium removal …
... Soil washing is one of the most recommended for decontaminating large areas of soil in a relatively short period of time because it is proven to be relatively very …
Effective removal of radioactive cesium from
After cesium removal, the amount of cesium appearing in both XRD and SEM-EDS was analyzed. The removal efficiency of 133 Cs was 60.21% and 51.86% for nickel nitrate and iron sulfate, respectively. For the ash-washing solution, the removal efficiency of 137 Cs was revealed to be more than 99.91% by both chemical agents. This …
Physiological Responses and Tolerance of Halophyte Sesuvium
Cesium (Cs) is a soil contaminant and toxic to the ecosystem, especially the plant species. In this study, we have assessed the potential of a halophyte Sesuvium portulacastrum for its Cs tolerance and accumulation. Thirty days old S. portulacastrum plants were subjected to different concentrations of Cs (0, 5, 10, 25, 50, and …
Desorption technologies for remediation of cesium
At Fukushima, the area surrounding the nuclear power plant was contaminated with radioactive cesium (137 Cs), and approximately 18.7–28.0 million m 3 of soil was contaminated (Yin et al. 2017). The radionuclides released by the accident affected the plants, animals, and human residents, and access to the site is now restricted …
Cesium's Movement in the Natural Environment | US EPA
For example, Cs can be deposited on vegetative surfaces (i.e., grass and soil) and transported to the litter layer (e.g., dead leaves and debris above the soil) due to natural activities such as wind, precipitation and plant shedding. The Cs-soil penetration depth and time may differ depending on various factors including soil clay content ...
Removing cesium: Solutions to a chemically complex problem
But among his many contributions to the challenge of cleaning up such chemically complex radioactive waste, one effort stands above others: capturing cesium-137. Cesium-137 is mostly human-made.
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