Extraction of iodine from mother liquors formed as industrial waste with activated carbons

Velichkina, N. S.; Vlasova, T. V.; Kalashnikov, A. V.; Kol’tsov, V. Yu.

doi:10.1134/s1070427214070258

Cited by 2 publications

(3 citation statements)

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“…It has been observed that several of these AC materials do adsorb 129 I as well as 99 Tc and carbon tetrachloride from contaminated groundwaters treated at the 200-W pump and treat facility. Velichkina et al (2014) studied two AC to remove residual iodine from waste solution generated from the production of nuclear-grade zirconium for use in the nuclear industry. After zirconium refining by the iodide method, iodinated circulating solution is used for cleaning apparatus and washing off reusable shavings.…”

Section: Release Of 129i From Grout Encapsulated Gacmentioning

confidence: 99%

Solid Secondary Waste Data Package Supporting Hanford Integrated Disposal Facility Performance Assessment

Flach¹,

Kaplan²,

Nichols³

et al. 2016

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This data package provides recommendations for waste form physical and chemical properties to support the initial analysis of Solid Secondary Waste (SSW) disposals in the 2017 Integrated Disposal Facility (IDF) Performance Assessment (PA). At this time, specific formulations have not been identified for cementitious materials that will be used to encapsulate or solidify SSW, and no IDF-specific experiments were conducted to obtain data for the PA. Thus recommended property values are provided for a range of candidate materials, and based on a review of existing literature. Four key SSW streams were identified for emphasis due to expected inventories for contaminants of potential concern (COPC): HEPA filters, ion exchange resins, carbon adsorber beds and Ag-mordenite. Based on current disposal plans, compacted HEPA filters were considered as an encapsulated waste form and the other three key waste streams were assumed to be blended and solidified in a cementitious matrix. Considerations for alternative disposal methods were also addressed. The IDF PA team identified specific COPCs expected to be the key contributors for the PA calculations: Tc-99, I-129, Cs-137, Sr-90, uranium isotopes (and total uranium), chromium, mercury and nitrate. These species are the focus of this data package.

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Section: Release Of 129i From Grout Encapsulated Gacmentioning

confidence: 99%

Solid Secondary Waste Data Package Supporting Hanford Integrated Disposal Facility Performance Assessment

Flach¹,

Kaplan²,

Nichols³

et al. 2016

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“…A commercially available activated carbon (KAD coal) with an average grain size of 2.25 mm had an I 2 adsorption capacity of 1.03 g/g for an I 2 solution with a concentration of 1 g/L. This material was robust, easy to recycle, and maintained high sorption capacity for up to 8 cycles . Yilmaz et al used a single-walled carbon nanotube (SWNT) which performed I 2 removal with an efficiency of 22.60% and an adsorption capacity of 1.356 mg/g.…”

Section: Removal Of Radioactive Iodinementioning

confidence: 98%

“…This material was robust, easy to recycle, and maintained high sorption capacity for up to 8 cycles. 75 Yilmaz et al used a single-walled carbon nanotube (SWNT) which performed I 2 removal with an efficiency of 22.60% and an adsorption capacity of 1.356 mg/g. This performance was attributed to the large surface area and high adhesive strength of the SWNT after interaction with 131 I.…”

mentioning

confidence: 99%

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

et al. 2023

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Iodine (I 2 ) in the form of iodide ions (I − ) is an essential chemical element in the human body. Iodine is a nonmetal that belongs to the VIIA group (halogens) in the periodic table. Over the last couple of centuries, the exponential growth of human society triggered by industrialization coincided with the use of iodine in a wide variety of applications, including chemical and biological processes. However, through these processes, the excess amount of iodine eventually ends up contaminating soil, underground water, and freshwater sources, which results in adverse effects. It enters the food chain and interferes with biological processes with serious physiological consequences in all living organisms, including humans. Existing removal techniques utilize different materials such as metal−organic frameworks, layered double hydroxides, ion-exchange resins, silver, polymers, bismuth, carbon, soil, MXenes, and magnetic-based materials. From our literature survey, it was clear that absorption techniques are the most frequently experimented with. In this Review, we have summarized current advancements in the removal of iodine and iodide from human-made contaminated aqueous waste.

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Extraction of iodine from mother liquors formed as industrial waste with activated carbons

Cited by 2 publications

References 0 publications

Solid Secondary Waste Data Package Supporting Hanford Integrated Disposal Facility Performance Assessment

Solid Secondary Waste Data Package Supporting Hanford Integrated Disposal Facility Performance Assessment

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

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