The retardation and attenuation of liquid radioactive wastes due to the geochemical properties of the zone of injection

Solodov, I. N.

doi:10.1144/gsl.sp.1998.128.01.20

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…The former Soviet Union scientist B.A. Grabovnikov defined the leaching range as the area in which the leaching agent seeps into the ore-bearing layers and surrounding rocks [27]. Wang et al [28] believed that the area where the leaching agent flows in the formation is called the leaching range.…”

Section: Discussion On the Range Of Leachingmentioning

confidence: 99%

Hydrodynamic Simulation of the Influence of Injection Flowrate Regulation on In-Situ Leaching Range

et al. 2022

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Reasonable control of the leaching range is one of the critical indicators of the in-situ leaching uranium mining process. However, there is currently no mature control technology. To verify and improve the current control technology of the leaching range in the industry, this work proposes an injection control mode for a small flow around the well-site and establishes a hydrodynamic model of the leaching range under eight different pumping and injection conditions by using the groundwater modeling system (GMS). The model calculation, range prediction, comparative analysis, and on-site SO42− and S isotope verification tests were carried out. Results show that with the change of liquid injection ratio, the area ratios of fixed pumping injection ratio (total pumping flowrate is greater than 0.3% of the total injection flowrate) and model leaching range under four pumping injection equilibrium conditions were 99.10%, 99.99%, 98.30%, and 97.95%, respectively. The farthest migration distance ratios of the leaching solution were 99.37%, 100%, 98.02%, and 97.58%, respectively. It is considered that the operation mode with a fixed pumping injection ratio has no noticeable control effect on the leaching range; selecting a reasonable proportion to regulate the flowrate of injection wells at different positions can effectively reduce the area of the groundwater flow field and realize the effective control of the leaching range. The research results are conducive to saving a lot of evaporation pool construction, land acquisition, human and material resource investment, and environmental policy pressure.

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Section: Discussion On the Range Of Leachingmentioning

confidence: 99%

Hydrodynamic Simulation of the Influence of Injection Flowrate Regulation on In-Situ Leaching Range

et al. 2022

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“…There are also surface deposits of approximately 2,424,000 m 3 of subeconomic uranium-bearing material with around 2-5 mg kg −1 (0.002 to 0.005%) uranium content. The contaminated material recovered from the surface lies around 3.500.000 m 3 (Solodov 1998). In the southern part of Kyzylkum desert urbanisation, industrialisation, agricultural activities and traffic lead to the pollution of the lands with pesticides, nitrates, organic pollutants and various heavy metals (Goldshtein 1997;Tsukatani and Katayama 2001;Toderich et al 2001aToderich et al , b, 2002Toderich et al , 2003Toderich et al , 2005aKhujanazarov et al 2007).…”

Section: Physico-chemical Characteristics Of the Soilsmentioning

confidence: 99%

The Structural and Functional Characteristics of Asiatic Desert Halophytes for Phytostabilization of Polluted Sites

Toderich

Shuyskaya

Khujanazarov³

et al. 2010

Plant Adaptation and Phytoremediation

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Phytoremediation, the use of plants to extract, sequester, and/or detoxify pollutants through biological processes is an effective, in situ, non-intrusive, lowcost, ecologically friendly, socially accepted technology to remediate polluted soils. Crystalline to fibrillar wax formations, appressed to surfaces of guard cells appear to originate from guard cells in the vicinity of the stomatal aperture. Formations may arise from evaporation of plant water at the interface between stomatal antechambers and substomatal cavities, leaving salt ions behind to precipitate. Many questions remain unanswered regarding their ecological and physiological significance as well as their occurrence and prevalence in both time and space. Such functions would be of considerable adaptive value in the light of their possible relationships to the impact of pollutants. An attempt has been made here to address these questions by analysing the morphology of salt glands and intracellular salt crystals using SEM micrographs of Salsola, Eremopyrum, Aeluropus litoralis, Tamarix and other desert plants.

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“…Liquid radioactive waste is one of the byproducts of enterprises manufacturing nuclear fuels and other materials and contains large concentrations of a variety of radionuclides (Bradley & Jenquin 1995). There are three main such enterprises in Western Siberia, namely at Mayak (also known as Ozersk, near Chelyabinsk; Solodov et al 1994), Krasnoyarsk-26 (also known as Zhelenogorsk) and . These sites are located in the upper reaches of the catchments of the great Siberian rivers, the Ob and the Yenisey, both of which flow northwards (Fig.…”

Section: L G O T I N and Y M A K U S H I Nmentioning

confidence: 99%

“…High-level technological wastes are injected with acidic solutions (Solodov 1998) of pH 2-3 and have total mineralization up to 200g1-1. The macrocomponents of these solutions are sodium nitrate and soluble complexes containing heavy metals (iron, chromium, manganese and nickel) which are the products of corrosion.…”

Section: Lr W Injection Polygonsmentioning

confidence: 99%

Groundwater monitoring to assess the influence of injection of liquid radioactive waste on the Tomsk public groundwater supply, Western Siberia, Russia

Lgotin¹,

Makushin²

1998

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This paper considers the potential impact of the deep injection of liquid radioactive waste (LRW) on the continued operation of the Tomsk public groundwater supply. The close proximity of the LRW injection polygons to the wellfield creates a geoenvironmental conflict, due to the possibility of migration of radionuclides and other toxic components of LRW from the Cretaceous aquifer system used for LRW injection to the Palaeogene aquifer complex used for water supply. Although a significant argillaceous aquitard and a non-utilized buffer aquifer horizon lie between the aquifer systems, there are indications that such inter-aquifer migration may take place, either due to sandy windows in the aquitard or to inadequately sealed well annuli. A major groundwater monitoring network, based on the co-operative use of automated information systems and GIS technologies, has been established. In order to simulate contaminant migration scenarios, the use of variably scaled numerical hydrogeomigrational models is recommended. These would allow prognostic estimations and form a basis for administrative decision-making to minimize damage to the geological environment.

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The retardation and attenuation of liquid radioactive wastes due to the geochemical properties of the zone of injection

Abstract: Natural geochemical factors are of significant importance for the design of under-SOLODOV, I. N. 1998. The retardation and attenuation of liquid radioactive wastes due to the geochemical properties of the zone of injection.

Cited by 4 publications

References 3 publications

Hydrodynamic Simulation of the Influence of Injection Flowrate Regulation on In-Situ Leaching Range

Hydrodynamic Simulation of the Influence of Injection Flowrate Regulation on In-Situ Leaching Range

The Structural and Functional Characteristics of Asiatic Desert Halophytes for Phytostabilization of Polluted Sites

Groundwater monitoring to assess the influence of injection of liquid radioactive waste on the Tomsk public groundwater supply, Western Siberia, Russia

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