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electrokinetic dewatering achieved

Electrokinetic - Dewatering Methods

Electrokinetic has developed a wide range of EKG materials that combine electroosmosis and filtration in such a way as to yield an enhanced dewatering performance.

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Electrokinetic - Dewatering of Sewage Sludge

This breakthrough adds the dewatering effect of electroosmosis to that of conventional hydraulic dewatering. The form of the EKG is an Electrokinetic patented enhancement of standard filtration belts. An example of using EKG technology in sewage dewatering by Thames Water Company (London) is shown below left.

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Electrokinetic dewatering of a phosphate clay - ScienceDirect

01/08/1997  Electrokinetic dewatering of a phosphate clay was investigated in an experimental program. The results show that the velocity of sedimentation is controlled by the applied current density and that electro-osmotic permeability dominates the effectiveness of electrokinetic consolidation.

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Efficient continuous electrokinetic dewatering of ...

01/03/2019  Two prototypes are developed for continuous electrokinetic dewatering of phosphatic clay suspensions. A two-stage design comprised an electrophoretic thickening unit followed by a unit that used electro-osmosis to complete the dewatering. A single-stage design carried out the dewatering in one operation.

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Electrokinetic dewatering, consolidation and stabilization ...

Better drainage of soil is achieved if the water collecting at the cathode is removed. Transfer of water under the action of Eng. Geol., 1 (4) (1966) 291-304 294 L.G. ADAMSON et al. electric current causes drying of soil.

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Electrokinetic Dewatering of Ultrafine Coal and Coal Tailings

It is the process of electrokinetic dewatering, whereby water is extracted from a slurry through the application of direct current voltage using two or more electrodes. Water flows towards the negatively charged electrode, the cathode, where it can be collected.

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Electrokinetic geosynthetics: from research to hype to ...

03/07/2017  From the trial, a method for predicting the quantity of consolidation that can be achieved using electrokinetic geosynthetic technology was developed. The method is based upon a linearly equivalent surcharge varying from 0 kPa at the cathode to a

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Electro-Kinetic Technology as a Low-Cost Method for ...

Electro-Kinetic Technology as a Low-Cost Method for Dewatering Food By-Product Sing K. Ng,1 Andrew Plunkett,1 Valentina Stojceska,1 Paul Ainsworth,1 John Lamont-Black,2 Jean Hall,3 Chris White,3 Stephanie Glendenning,3 and David Russell4 1Department of Food and Tourism Management, Manchester Metropolitan University, Manchester, UK 2Electrokinetic Ltd.,

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(PDF) Laboratory Experiments on Electroosmotic Dewatering ...

The highest removal was achieved at the highest pH, while the lowest removal was achieved at a pH of 6.2. For another sample of mine tailings, Chen et

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Electrokinetic dewatering of a phosphate clay - ScienceDirect

01/08/1997  A volume reduction of about 40% was achieved in less than 30 h with power consumption of 7.6 kWh m-3. However, after sedimentation was complete, the resulting electro-osmotic consolidation was less efficient, attributable primarily to its extra fine grain size and mineral composition. 4. Conclusions The principles of electrokinetic dewatering consist of

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Electrokinetic geosynthetic dewatering of nuclear ...

01/08/2015  This can be achieved by combining electrokinetic phenomena with the traditional functions of geosynthetics of drainage, filtration, containment, and reinforcement to form electrokinetic geosynthetics (EKG). Thus an EKG drain provides a drainage function but also causes the water to flow towards the drain. EKG technology works by harnessing electro

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Full scale electrokinetic dewatering of waste sludge ...

01/11/2002  It appears from the data in Fig. 4 that a stable dewatering process can be achieved. Download : Download full-size image; Fig. 4. Stability of drying process of WMO–Al sludge in a full scale dewatering equipment press facilitated with electrokinetic facility, at a potential difference across the electrodes of 30 V. The throughput was held constant at 2 m 3

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Electrokinetic Dewatering of Ultrafine Coal and Coal Tailings

The four tests on Wambo tailings all started from different initial solids content values, ranging from 30 to 45%, and effective electrokinetic dewatering was achieved in all four cases. The tests in the EO cell confirmed the data obtained from the tub tests, with the Dawson tailings again performing poorly relative to the other five materials ...

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Electro-kinetic dewatering of oily sludges - ScienceDirect

17/10/2005  Yuan and Weng also achieved a high water content reduction from 87.8 to 62.6% in municipal sludge at a potential gradient 5.0 V ... Full scale electrokinetic dewatering of waste sludge. Colloids Surf. A: Physicochem. Eng. Aspects, 210 (2002), pp. 231-241. Article Download PDF View Record in Scopus Google Scholar. C. Yuan, C. Weng. Sludge dewatering by electrokinetic

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Paper: Electrokinetic dewatering of mine tailings from ...

Dewatering and consolidation are achieved when the water is permitted to drain at the cathode and prohibited to enter the anode. The electrochemical reactions are associated with the EK process, which leads to a pH gradient in soil, generation of hydrogen and oxygen gases at electrodes and corrosion of consumable anodes, which must be addressed on a project

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(PDF) Laboratory Experiments on Electroosmotic Dewatering ...

The highest removal was achieved at the highest pH, while the lowest removal was achieved at a pH of 6.2. For another sample of mine tailings, Chen et

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Questions and Answers – EKS - ElectroKinetic Solutions

A second electrokinetic reaction, electro-osmosis, causes the bound water in colloidal suspensions and in soils to become mobile; the water is released to the surface. Electrophoresis and electro-osmosis work together to accelerate dewatering. The EKS-DT process involves two stages. During Stage 1, slurries are dewatered to the point that a soil matrix is formed. Stage 2

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Electrophoretic dewatering of mine tailings using ...

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 geosynthetics

30/09/2016  use of electrokinetic geosynthetics in slope stabilisation ... can be achieved by combining the electro kinetic phenomena of electro-osmosis, electrophoresis and associated electro kinetic functions such as electrolysis with the traditional functions of geo synthetics of drainage, filtration, containment and reinforcement. 4. PRINCIPLES OF ELECTRO KINETICS

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Electrokinetic geosynthetic dewatering of nuclear ...

01/08/2015  This can be achieved by combining electrokinetic phenomena with the traditional functions of geosynthetics of drainage, filtration, containment, and reinforcement to form electrokinetic geosynthetics (EKG). Thus an EKG drain provides a drainage function but also causes the water to flow towards the drain. EKG technology works by harnessing electro

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Electro-kinetic dewatering of oily sludges - ScienceDirect

17/10/2005  Yuan and Weng also achieved a high water content reduction from 87.8 to 62.6% in municipal sludge at a potential gradient 5.0 V ... Full scale electrokinetic dewatering of waste sludge. Colloids Surf. A: Physicochem. Eng. Aspects, 210 (2002), pp. 231-241. Article Download PDF View Record in Scopus Google Scholar. C. Yuan, C. Weng. Sludge dewatering by electrokinetic

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Electrokinetic Dewatering of Sewage Sludge with Fixed and ...

This paper presents a laboratory study on electrokinetic dewatering (EKD) of sewage sludge with fixed and moving electrodes. The experiments with fixed electrodes were conducted in two purposely designed Perspex cylinders to investigate the mechanism of attenuation in electroosmotic flow and dewatering efficiency. The experiments with moving electrodes were

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Electrokinetic dewatering of mine tailings from ...

Electrokinetic dewatering of mine tailings from hydrometallurgical processes JQ Shang The University of Western Ontario, ... (negative pole). Dewatering and consolidation are achieved when the water is permitted to drain at the cathode and prohibited to enter the anode. The electrochemical reactions are associated with the EK process, which leads to a pH gradient in

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Anaerobic Digestion Process - WIPO

•The electrokinetic dewatering can achieve 35-40% of dry solid by taking out the free water, interstitial water, surface water and part of intracellular and chemically bound water, whereas the conventional dewatering can achieve only 20-25% dry solid by taking out only free water. Features Principle of the Electrokinetic Dewatering •This technology offers separation, dewatering

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Paper: Electrokinetic dewatering of mine tailings from ...

Dewatering and consolidation are achieved when the water is permitted to drain at the cathode and prohibited to enter the anode. The electrochemical reactions are associated with the EK process, which leads to a pH gradient in soil, generation of hydrogen and oxygen gases at electrodes and corrosion of consumable anodes, which must be addressed on a project

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ELECTRO-OSMOSIS DEWATERING AND ELECTROKINETIC ...

31/10/2020  Comparison of dewatering effect between electro-osmosis and filter pressing based on AMORAS, which is a dredged sludge disposal project in Antwerp, was presented in this paper. Water content of ...

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Electrophoretic dewatering of mine tailings using ...

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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Questions and Answers – EKS - ElectroKinetic Solutions

A second electrokinetic reaction, electro-osmosis, causes the bound water in colloidal suspensions and in soils to become mobile; the water is released to the surface. Electrophoresis and electro-osmosis work together to accelerate dewatering. The EKS-DT process involves two stages. During Stage 1, slurries are dewatered to the point that a soil matrix is formed. Stage 2

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(PDF) Laboratory Experiments on Electroosmotic Dewatering ...

The highest removal was achieved at the highest pH, while the lowest removal was achieved at a pH of 6.2. For another sample of mine tailings, Chen et

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Electrokinetic dewatering and consolidation of dredged ...

Electrokinetic dewatering and consolidation of dredged marine sediments Malekzadeh, Mona (2016) Electrokinetic ... Thirdly, soil compressibility reduces with depth, if the anode is placed at the bottom. Finally, higher settlement is achieved when the anode is placed at the bottom. Item ID: 49416: Item Type: Thesis (PhD) Keywords: compressibility, consolidation, dewatering

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Dewatering and coliform inactivation in biosolids using ...

The feasibility of using electrokinetic processes for dewatering and fecal coliform (FC) inactivation was evaluated on a bench scale. Six electrokinetic cells

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A NEW, REAL TECHNOLOGY FOR SOLIDS DEWATERING

Belt Filter Press, Dewatering, Biosolids, Electrokinetic Geosynthetics, Electro-Osmosis INTRODUCTION Prior to understanding the application of electrokinetics to the art of dewatering, it is important to first look at the theory and science behind the technology. There are several recognized electrokinetic phenomena relating to the relative movements of solids and liquids

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(PDF) Dewatering of mine tailings using eletrokinetic ...

2.5 mS/cm, electrokinetic dewatering would not be viable. Although a high salinity (and thus lower. ζ . potential) is detri-mental to the process, Lockhart (1992) suggested that up to. a

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(PDF) Electro-Kinetic Technology as a Low-Cost Method for ...

Thus, electrokinetic dewatering may be considered to have distinct advantages over other process, including osmo-convective drying. Effluent pH Table 4 shows the pH measured at both cathode and anode for each sample at 0, 15, and 30 V. Generally, the effluents discharged from the cathode show higher pH compared to the effluents discharged from the anode after the dewatering

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(PDF) Laboratory Experiments on Electroosmotic Dewatering ...

The highest removal was achieved at the highest pH, while the lowest removal was achieved at a pH of 6.2. For another sample of mine tailings, Chen et

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US10486108B2 - Electrokinetic dewatering of phosphatic ...

Various examples are provided for electrokinetic dewatering of e.g., phosphatic clay suspensions. In one example, among others, a system includes a separation chamber including an anode and a cathode extending ends of the separation chamber and a power supply configured to energize the anode and the cathode to establish an electric field.

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REMEDIATION OF SALT IMPACTED GROUNDWATER WITH ...

Electrokinetic technology has long been used in applications that require soil dewatering. More recently there has been widespread research and application of this technology to contaminated sites treatment. Electrokinetic remediation is achieved by applying an electric field over the impacted area causing the movement of ions. Pilot studies and research demonstrate that the

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DEWATERING TREATMENT SYSTEM AND METHOD - ELECTROKINETIC

ELECTROKINETIC LTD (GB) International Classes: C02F11/12; B01D35/06; C02F1/469; C02F1/461. View Patent Images: Download PDF EP1673311B1 . Foreign References: 4802964: Liquid separation process for suspensions by a pulsating electrical current: 5192413: Electroosmotic dewaterer: 5891342: Dewatering process: Attorney, Agent or Firm: Vinsome,

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Device for Efficient Continuous Electrokinetic Dewatering ...

Various examples related to electrokinetic dewatering (EKD) of suspensions such as, e.g., phosphatic clay suspensions are provided. In one example, a system for continuous EKD includes cake dewatering unit having a lower conveying belt extending across a dewatering chamber; an upper conveying belt extending across at least a portion of the dewatering chamber; and a

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