electrokinetic dewatering presented - zakenclubtzand.nl

Electrokinetic (EK) Dewatering of Orr Dam Sediment - OnePetro. The viability of electrokinetic (EK) dewatering of the Orr Dam sediment is assessed in an experimental program, including material characterization, measurement of EK permeability, and EK dewatering tests.

"PED: pressurized electroosmotic dewatering " by Leon ...

Mechanical solid/liquid separation or dewatering of fine-grained suspensions is difficult to accomplish with any degree of success, cost effectiveness and/or practicality. The use of electroosmosis, the electrokinetic transport of water, which is theoretically independ- ent of pore size, on the other hand can be quite slow and consume a great deal of electrical energy.

RAPID SOIL STABILIZATION AND STRENGTHENING USING ...

RAPID SOIL STABILIZATION AND STRENGTHENING USING ELECTROKINETIC TECHNIQUES Sean W. Morefield, Michael K. McInerney, Vincent F. Hock, and Orange S. Marshall, Jr. ... Metal ions strengthening. During early work on dewatering soil it ... The movement of Zinc metal Sodium phosphate Glass beads current produces a net fluid flow toward the cathode

Semicontinuous Electrokinetic Dewatering of Clay ...

Semicontinuous Electrokinetic Dewatering of Clay Suspensions . By Rui Kong. Abstract. In the series University of Florida Digital Collections.Includes vita.(Bibliography) Includes bibliographical references.(Source of Description) Description based on online resource; title from PDF title page.(Source of Description) This bibliographic record ...

(PDF) Electroosmotic flows and electromigrations during ...

Saturated soft soils can be strengthened by several methods such as dewatering or adding suitable chemicals. Introduction of chemicals through electrokinetic (EK) process to strengthen a residual soil was investigated. The results of chemical tests

US4808304A - Apparatus for the dewatering of phosphate ...

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. The invention is preferably carried out in a closed loop system involving the use of electrokinetic densification and substantially ...

SUBSIDENCE OF SUSPENSIONS OF PHOSPHATIC SLIME AND …

The dewatering of stable phosphatic clay suspensions resulting from the processing of phosphate rock is a problem of much practical and theoretical significance. In order to ... in addition to the electrokinetic properties, morphology, swelling

NESL_Home - UFL MAE

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.

ElectrochemistryinSociety- MarkE.Orazem ...

ElectrochemistryinSociety-MarkE.Orazem-DistinguishedProfessor-Department-of-Chemical-Engineering-University-of-Florida--Electrochemistry-plays-an-important-role-in ...

Electrokinetic dewatering of a phosphate clay | Request PDF

Shang and Lo [42] investigated electrokinetic dewatering of a phosphate clay in which electroforced sedimentation and electroosmotic dewatering both occurred. They concluded that intermittent ...

Semicontinuous Electrokinetic Dewatering of Clay Suspensions

1 SEMICONTINUOUS ELECTROKINETIC DEWATERING OF CLAY SUSPENSIONS By RUI KONG A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIEN CE UNIVERSITY OF FLORIDA 2011 ... 1983 [2] J.Q. Shang, K.Y. Lo, Electrokinetic dewatering of a phosphate …

US Patent for Apparatus for the dewatering of phosphate ...

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. The invention is preferably carried out in a closed loop system involving the use of electrokinetic densification and substantially ...

DESIGN OF ELECTROLYTIC DEWATERING SYSTEMS FOR …

how this project fit into the scope of the phosphate mining business. I would also like to thank Charles Guan, Rick Grove, and Brandon Russell of Mosaic Fertilizer LLC for their support. I thank Professor Guerry McClellan, Professor David Bloomquist, and Professor Hassan El-Shall for their advisement on issues related to clays and clay dewatering.

Laboratory device to characterize electrokinetic ...

Apr 04, 2015· The oil sands industry usually leads to the production of large quantities of mineral waste, such as fluid fine tailings (FFT), whose disposal is often challenging. Electrokinetic geocomposites (eGCPs) installed into the FFT disposal area may improve in situ dewatering, as eGCPs can drain water expulsed during FFT consolidation as well as impose a voltage across FFT to displace water by ...

Effect of Electrical Conditions on the Efficiency of ...

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, [email protected]

Distinguished Professor Lecture: Electrochemistry in ...

Abstract: Electrochemistry plays an important role in society. The examples to be discussed include research conducted at the University of Florida on electrokinetic dewatering of the effluent from phosphate mining operations, on use of impedance spectroscopy to detect corrosion of…

Influence of Electrokinetic Processing of a Tropical Soil ...

2.2 Electrokinetic Experiments The soil compartment containing compacted and saturated sample was then connected to electrolyte compartments. The schematic diagram of the EK experiment is illustrated in Figure 3. Each EK cell consisted of a soil compartment connected to electrolyte chambers on both ends.

SETTLING OF SUPERNATANT FROM SEMICONTINUOUS …

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.

Dewatering of Phosphatic Clay Waste by Flocculation - [PDF ...

Dewatering of Phosphatic Clay Waste by Flocculation. By M. K. Abd-El Rahman* This work focuses on the dewatering of phosphatic clay waste of Egyptian Abu-Tartur phosphate ore by flocculation usingpolyacrylamides to enhance the dewatering rate and recycling of the process water.

Progress in the Development of Prototypes for Phosphatic ...

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 ...

225th ECS Meeting (May 11-15, 2014) - Confex

This system allowed measurement of supernatant turbidity, pH, and changes in solids content as functions of applied electric field, flow rate, and settling time. Under pseudo-steady-state operation, low-turbidity water was separated from a clay solids suspension by a combination of electrokinetic dewatering and free settling.

Design of Electrolytic Dewatering Systems 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.

Dewatering, metal removal, pathogen elimination, and ...

Esmaeily, Ali (2002) Dewatering, metal removal, pathogen elimination, and organic matter reduction in biosolids using electrokinetic phenomena. Masters thesis, Concordia University.

Welcome to CDC stacks | Well point dewatering of ...

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Microstructure of clay fabric in electrokinetic dewatering ...

Jun 15, 2018· Electrokinetic dewatering is considered a promising method for separation of water from clay dispersions in the mining industry. Numerous studies over the past few decades have been conducted on electrokinetic dewatering process in order …

Dewatering of mine tailings using electrokinetic …

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.

Development of Electrokinetic Dewatering for Phosphate ...

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 ...

Chemical Engineering at the University of Florida

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 ...