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Development of Electrokinetic Dewatering for Phosphate

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

Electrokinetic dewatering of a phosphate clay - ScienceDirect

Phosphate clay suspensions are a by-product of strip mining rendering large land areas unusable for development Electrokinetic dewatering offers the opportunity to reclaim these areas Dr Moghaddam was awarded a $1 6M grant from the the Advanced Research Projects Agency-Energy ARPA-E to develop a membrane based absorption cooling system

PDF Electroosmotic flows and electromigrations during

A typical Florida phosphate mining operation produces more than 100 000 gallons min of phosphatic clay The suspensions are pumped into large impoundments called clay settling areas CSA in which separation is achieved by hindered settling and self-consolidation Previous research to develop batch electrokinetic dewatering processes

phosphatic clay dewatering - miniwind nl

Dewatering metal removal pathogen elimination and organic matter reduction in biosolids using electrokinetic phenomena Esmaeily Ali 2002 Dewatering metal removal pathogen elimination and organic matter reduction in biosolids using electrokinetic phenomena

Electrokinetic dewatering project highlighted in December

Electrokinetic strengthening of marine clay adjacent to offshore foundations Proceedings the 11th International Offshore and Polar Engineering Conference Stavanger Norway June 17-22 pp 694-701

WO2014055723A1 - Electrokinetic dewatering of phosphatic

Apr 01 2010· Read Improved estimates of power consumption during dewatering of mine tailings using electrokinetic geosynthetics EKGs Geotextiles and Geomembranes on DeepDyve the largest online rental service for scholarly research with thousands of …

Dewatering of mine tailings using electrokinetic …

Clay is part of the matrix mined by phosphate companies The matrix contains roughly equal parts of sand clay and phosphate The finest particles of clay sand and phosphate are separated in cyclones during the first stages of beneficiation As the water content of the clay decreases electrokinetic dewatering of clay progresses smoothly

dewatering phosphate process - alderbuebe ch

Request PDF on ResearchGate Development of Electrokinetic Dewatering for Phosphate Mine Tailings Solid-liquid separation represents a significant problem for the phosphate mining industry A

US20150273398A1 - Electrokinetic dewatering of phosphatic

Mar 01 2019· Phosphate ores have been mined in Florida since the late 1800s and Florida generates approximately two thirds of mined phosphate in the United States Electrokinetic dewatering EKD is also referred to in the literature as electro-dewatering EDW or electro-osmotic dewatering EOD

Paper Electrokinetic dewatering of mine tailings from

study assessed the performance of an enhanced electrokinetic technology which permits the simultaneous dewatering heavy metal removal and inactivation of the swine helminth Ascaris suum from wastewater sludge in one operational unit for the production of exceptional quality biosolids

By RUI KONG - University of Florida

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

Improved estimates of power consumption during dewatering

The use of an applied electric field for dewatering was explored in the late 1990s Electrokinetic separation was found to be promising but the technology was not considered economical Under funding from Mosaic a major phosphate mining company our group produced bench-top results similar to those reported in the literature

Dewatering metal removal pathogen elimination and

Abstract A mathematical model is presented for the electrokinetic dewatering of suspensions of phosphatic clays The modeling approach couples a boundary-element model for solution of Laplace s equation to a recently developed constitutive equation that relates the change in solids content with applied electric field and time

SETTLING OF SUPERNATANT FROM SEMICONTINUOUS …

Assessing the Use of Aluminium Electrodes on the Electrokinetic Dewatering and Stabilization of Dredged Mud Slurries After the completion of the electrokinetic stabilization samples are taken from different depths and water content pH electrical conductivity and atterberg limits are determined Metal Speciation in Phosphate and

WO2014055723A1 - Electrokinetic dewatering of phosphatic

Apr 04 2015· Laboratory device to characterize electrokinetic geocomposites for fluid fine tailings dewatering Sébastien Bourgès-Gastaud a b Guillaume Stoltz b Patricia Dolez c Éric Blond c Nathalie Touze-Foltz b a Afitex 13-15 rue Blériot 28300 Champhol France b Irstea HBAN INEGE 1 rue Pierre-Gilles de Gennes 92761 Antony Cedex France

Laboratory device to characterize electrokinetic

The Bureau of Mines is testing a dewatering technique for phosphatic clay waste that will recover a portion of the water lost using conventional waste disposal methods and produce solids suitable for land reclamation Research was conducted by the Bureau of Mines to determine the feasibility of using electrokinetic densification to

Welcome to CDC stacks Well point dewatering of

Cite As Shang JQ Xu Y 2019 Electrokinetic dewatering of mine tailings from hydrometallurgical processes in AJC Paterson AB Fourie D Reid eds Proceedings of the 22nd International Conference on Paste Thickened and Filtered Tailings Australian Centre …

Continuous process for the dewatering of phosphate slimes

Electrokinetic dewatering project highlighted in December 10 2015 University of Florida press release DEPARTMENT OF CHEMICAL ENGINEERING Mark E Orazem Distinguished Professor of Chemical Engineering Prototype for Continuous Dewatering of Phosphate Mine Tailings Author Rui

Effect of Electrical Conditions on the Efficiency of

Dewatering of mine tailings using electrokinetic geosynthetics A B Fourie D G Johns and C J F P Jones Abstract Many mining operations produce tailings that dewater very slowly under self-weight consolidation One way of reducing the water content of such tailings is by electroosmotic dewatering

NESL Home - mae ufl edu

Dewatering Phosphate Clay At this degree of consolidation the volume of clay waste mixed with sand from the phosphate beneficiation sequence would fit back into the mine cut thus eliminating the need for aboveground storage Recently the Bureau of Mines has developed a dewatering technique for …

Electrokinetic dewatering of phosphatic clay settling

Aug 26 1986· Method and apparatus for dewatering mill tailings slimes and slurries wherein ultra fine particles materially reduce the rate of natural dewatering and hinder their disposal in the mining and processing of phosphate coal potash uranium talc and the like

Continuous process for the dewatering of phosphate slimes

The Florida Institute of Phosphate Research FIPR has supported bench- and pilot-scale studies to determine the technical and economic feasibility of a variety of processes to speed the dewatering of clays associated with phosphate mining

Progress in the Development of Prototypes for Phosphatic

The Florida Institute of Phosphate Research FIPR has supported bench- and pilot-scale studies to determine the technical and economic feasibility of a variety of processes to speed the dewatering of clays associated with phosphate mining

Semicontinuous Electrokinetic Dewatering of Clay Suspensions

Aug 26 1986· Method and apparatus for dewatering mill tailings slimes and slurries wherein ultra fine particles materially reduce the rate of natural dewatering and hinder their disposal in the mining and processing of phosphate coal potash uranium talc and the like

A constitutive relationship for electrokinetic dewatering

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

Publications - Shang - CEE - Western University

SETTLING OF SUPERNATANT FROM SEMICONTINUOUS ELECTROKINETIC PROCESSING OF PHOSPHATIC CLAY SUSPENSIONS By Pei-Han Chiu August 2012 Chair Mark E Orazem Major Chemical Engineering Dilute suspensions of phosphatic clay a waste product of the phosphate ore beneficiation have been deposited in clay settling areas CSA in Central Florida for decades

Abstract Development of Electrokinetic Dewatering for

Dewatering of Sewage Sludge by Electrokinetics sludge dewatering electroosmotic pulse water content In this study an experiment of sewage sludge dewatering is carried by using electrokinetic method and the electrokinetic dewatering efficiency of digested sludge is analyzed Digested sludge without coagulants is selected and gravitational and pressing dewatering methods are applied in

Design of Electrolytic Dewatering Systems for Phosphatic

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

Dewatering of Sewage Sludge by Electrokinetics -Journal of

SEMICONTINUOUS ELECTROKINETIC DEWATERING OF CLAY SUSPENSIONS By Rui Kong August 2011 Chair Mark E Orazem Major Chemical Engineering The processing and storage of the phosphatic clay suspensions which result as a waste product from phosphate mining is a longstanding problem A very long time is

Electrokinetic Management of Biosolids for the

1 Effect of Electrical Conditions on the Efficiency of Electrokinetic Drainage Geocomposites for Tailings Dewatering Patricia I Dolez1 Eric Blond2 and Pascal Saunier3 1 SAGEOS CTT Group CTT Group St-Hyacinthe QC Canada pdolez gcttg com