آخرین محصولات
Recent research and applications in the use of electro-kinetic
Electrokinetic geosynthetics have in particular been proved to facilitate dewatering of waste like fluid fine tailings generated by the oil-sands industry (Gastaud et al., 2015; or soil ...
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Effect of Various Factors Affecting Electrokinetics Dewatering of …
Electrokinetic principles are being used in many geotechnical engineering application such as dewatering, decontamination, solid enhancement. Soils in the presence of high water content tend to loose the interparticle bonds, resulting in high compressibility of the soils, low bearing capacity and low permeability of the soil.
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Laboratory evaluation of electrokinetic dewatering of bauxite tailings
The mining tailings disposal system is often associated to the construction of large retaining systems, either for the great volume of materials generated by industrial plants or for the impossibility or difficulty of grants for new disposal areas.
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Dewatering Sludge Using Electrokinetic Geosynthetics
These tailings are often very soft and poorly consolidated thus they may create an environmental hazard and even pose a severe safety threat, particularly in seismically active areas. ... Several researchers have shown that electrokinetic dewatering of sludge is more effective than conventional hydraulically driven methods. Electrokinetic ...
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Electrokinetic geosynthetics in hydraulic applications
Electrokinetic geosynthetics (EKG) are a platform technology, which combine a wide variety of materials and processes to perform such diverse functions as dewatering, strengthening and conditioning in materials such as soils, sludges, slurries, tailings and …
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Electrokinetic Dewatering of Eneabba West Mine Tailings: A …
It is concluded that the Eneabba West Mine tailings are feasible for electrokinetic dewatering. This is demonstrated by the electroosmotic permeability in …
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Electrokinetic belt press dewatering of kimberlite tailings — case
The development of electrokinetic dewatering of tailings has other potential advantages including the elimination of the need for slimes dams in their current form and replacement by compacted landforms that pose considerably lower geotechnical and environmental risk. References: Lamont-Black, J., Jones, C.J.F.P., Glendinning, S., Huntley, D.T ...
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Patents Assigned to KINETIC SOLUTIONS, INC.
Abstract: An adaptive electrokinetic dewatering system for dewatering slurry and soil deposits, including tailings deposits and a control system therefor. The control system automatically determines an optimal applied power specification, including sets of power parameters to be applied to the deposit being dewatered and when to …
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Evolutionary Development for Electrokinetic Dewatering of …
Abstract. The processing and storage of phosphatic clay suspensions (or mine tailings) which result as a waste product from phosphate mining industry represent an important economic and ...
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A study on electrokinetic dewatering of oil sands tailings
Guo and Shang (2014) used Ti/IrOx-SS316 anode-cathode combination in electrokinetic dewatering of oil sands tailings and got good results in terms of increment in undrained shear strength and ...
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Advances and Challenges of Electrokinetic Dewatering of
The development of electrokinetic dewatering technologies for clay and soil materials has steadily advanced for over 100 years. A review of the origins, important contributions, and recent work on ...
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Improved estimates of power consumption during dewatering of …
Options offered by electrokinetic dewatering. The specific electrokinetic phenomenon of interest in the in situ dewatering of tailings is that of electro-osmosis. Although water molecules possess an overall neutral charge, they are polar. This means that they are attracted to positive ions in solution and orient themselves around the ions.
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Electrokinetic dewatering of a phosphate clay
The CSIRO of Australia began research on electrokinetic dewatering of tailings in the late 1970s (Lockhart, 1986). More than 60 tailings from coal preparation plants, sand washing plants, mineral processing and water purification plants were tested. Significant dewatering, consolidation and hardening effects were achieved in a variety of …
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ELECTROKINETIC DEWATERING OF GYPSUM …
the response of tailings to electrokinetic dewatering. Two conductive materials are used as electrodes in the study, i.e., a stainless steel SS316 mesh, which is a high-grade corrosion
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(PDF) Dewatering of mine tailings using eletrokinetic
This paper describes a study using newly developed electrokinetic geosynthetics (EKGs) as electrodes for the in situ dewatering of mine tailings. Laboratory tests were undertaken on mineral sands ...
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Electrokinetic dewatering of a phosphate clay
A series of studies performed by Shang on mine tailings [37,52–54] demonstrated combined mechanical and electrokinetic dewatering of various clay materials, mechanistic investigations into the rate of dewatering as a function of porosity, and the development of a semi-empirical model for EO permeability, which provided …
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Electrokinetic Studies of Mine Tailings Considering …
Dewatering of mine tailings requires innovative approaches to reduce water consumption, facility costs, tailings dam footprints, and limit the risk of a tailings dam failure (Bourgès-gastaud et al. 2017; Huazhe et al. 2020). There is a wide range of technologies to separate solid–liquid phases of mine tailings and industrial slurries.
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Electrokinetic dewatering of mine tailing: influence of
Electrokinetic dewatering or consolidation is based on the imposition of an electric potential dierence inside soil or tailings, through electrodes inserted within their mass, caus-ing the movement of the liquid phase in relation to the solid in the direction of one of the electrodes, and this induced water ow is removed from that electrode.
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Electrokinetic dewatering of mine tailing: influence of
Electrokinetic dewatering of mine tailing: influence of solid content and voltage level applied Introduction. In view of recent events in the world and Brazilian history, involving major repercussions and... Material and methods. In this study, the …
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Paper: Electrokinetic dewatering of mine tailings from
The objective of this research is to study the viability of using EK to dewater tailings (leach residue and gypsum) from hydrometallurgical processes. The electroosmotic (EO) flow …
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Electrokinetic dewatering of Turkish glass sand plant tailings
In this study, the dewatering of glass sand plant tailings from Mersin, Turkey was investigated using an electrokinetic technique. The particle size (d 8 0) of the solid waste material tested was less than 0.020. mm and consisted mainly of silica, orthoclase, alumina, potassium and iron oxides.. In current plant practice, Larox high-pressure filters …
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Electrophoretic dewatering of mine tailings using geosynthetics
The electrokinetic treatment of mine tailings demonstrated that dewatering of mine tailings using electrokinetic geosynthetic methods could be economic as well as effective Fourie et al ...
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Electrokinetic dewatering of Turkish glass sand plant tailings
In this study, the dewatering of glass sand plant tailings from Mersin, Turkey was investigated using an electrokinetic technique. The particle size (d(80)) of the solid waste material tested was ...
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Electrokinetic Studies of Mine Tailings Considering Dewatering …
The effect of the electrokinetic process on the extraction of trapped water was evaluated in the Miduk copper mine's tailings slurry. The effect of the dewatering process on copper removal was also studied. The initial electroosmotic permeability was determined using a one-dimensional cell. In the next step, the effect of voltage and …
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Electrokinetic dewatering of mine tailing: influence of solid content
The obtained results establish that the utilization of electrokinetic processes in the dewatering of tailings is a technique worthy of further investigation. Schematic of electrokinetic cell (EK Cell)
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Dewatering of oil sands tailings with an electrokinetic …
The oil sands industry generates large quantities of mineral waste, such as fluid fine tailings (FFT), whose disposal is often challenging. The use of planar electrokinetic geocomposites (eGCPs) in FFT disposal areas could improve in-situ dewatering by allowing water to drain after it is expulsed during consolidation and by …
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Electrokinetic dewatering of mine tailing: influence of
Electrokinetic dewatering or consolidation is based on the imposition of an electric potential dierence inside soil or tailings, through electrodes inserted within their mass, …
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Electrokinetic dewatering of mine tailings from …
tailings porewater has the electric conductivity of 8,000 S/cm, which is considered favourable in terms of power consumption for EK dewatering. 3. The zeta potentials of …
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Electrokinetic Dewatering of Diamond Mine Tailings
Electrokinetic dewatering provides a potentially attractive technique for dewatering of tailings both as part of the disposal process or in-situ after disposal. Studies in South Africa have confirmed that this technique is both possible and economic for the dewatering of diamond tailings in-situ after disposal, (Fourie et al 2006).
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Study on Electroosmotic Consolidation of Sludge Using EKG
The purpose of this study is to assess the feasibility of electroosmosis method using EKG electrode on sludge dewatering and consolidation. Previous studies have shown that EKG (electrokinetic geosynthetics) electrode can be used to replace metal electrode in electroosmosis of soil. Laboratory tests were carried out with aluminum, …
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محصولات مرتبط
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