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clay dewatering phosphatic

Design of Electrolytic Dewatering Systems for Phosphatic ...

Clay slurry samples were obtained from a phosphate mine located in Central Florida. A set of experimental results were used to calculate scaling parameters to aid in predicting the solids content as a function of operating time and the electric field applied.

Dewatering of Phosphatic Clay Waste by Flocculation ...

Dewatering of Phosphatic Clay Waste by Flocculation Dewatering of Phosphatic Clay Waste by Flocculation Rahman, M. K. Abd‐El 2000-05-01 00:00:00 This work focuses on the dewatering of phosphatic clay waste of Egyptian Abu‐Tartur phosphate ore by flocculation using polyacrylamides to enhance the dewatering rate and recycling of the process water.

FUNDAMENTALS OF DEWATERING INTRODUCTION - …

FUNDAMENTALS OF DEWATERING FINE PARTICLE SLURRIES P. Sanasundaran Professor Columbia University ... particularly acute whenever certain clay minerals are present in these waste (' A prime example of this is the phosphatic slime that is generated products. during the mining and processing of the phosphate rocks. ...

Microstructure of clay fabric in electrokinetic dewatering ...

The poor dewatering characteristic of phosphate clay dispersions is a major challenge for the phosphate mining industry. For example, in Florida (USA), large amounts of water (mostly groundwater) is consumed for the beneficiation process (i.e. separating phosphate rock from clay and sand); ...

WO2014055723A1 - 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.

Full text of "A review of phosphatic clay dewatering research"

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Well Point Dewatering of Phosphatic Clays

Well Point Dewatering of Phosphatic Clays By C. W. Smith and J. T. McLendon. Report of Investigations 9285 Well Point Dewatering of Phosphatic Clays By C. W. Smith and J. T. McLendon UNITED STATES DEPARTMENT OF THE INTERIOR Manuel Lujan, Jr., Secretary ... the dewatering of phosphatic clay wastes. Two storage impoundments were constructed.

Large-scale dewatering of phosphatic clay waste from Polk ...

Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

Semi-Continuous Electrokinetic Dewatering of Phosphatic ...

A semi-continuous electrokinetic dewatering process, representing an intermediate step in development of a technology for continuous electrokinetic dewatering of phosphatic clay suspensions, was ...

Chemical Engineering at the University of Florida

J. P. McKinney and M. E. Orazem, "Electrokinetic Dewatering Phosphatic Clay Settling Areas: Numerical Simulation and Economic Assessment," Minerals & Metallurgical Processing, 28 (2011), 71-76. J. P. McKinney and M. E. Orazem, "A Constitutive Relationship for Electrokinetic Dewatering of Phosphatic Clay Slurries," Minerals & Metallurgical Processing, 28 (2011), 49-54.

US5435893A - Process for the dewatering of phosphate ...

While the process of the dewatering of slime using an electro-sedimentation process is not necessarily well understood from a chemical standpoint, it appears that the electrical current flowing through the phosphate slime destroys the bond between the clay particles and the water and, thus, results in the solid clay particles sinking and the water decanting toward the surface of the holding ...

Chemical Engineering at the University of Florida

The Florida Institute of Phosphate Research (FIPR) supported bench- and pilot-scale studies to determine the technical and economic feasibility of a variety of processes to rapidly dewater the clay associated with phosphate mining: freeze-thaw technique, flocculation with a polymer, in-line sand-clay mixing, dredge-mix process, dewatering with ...

Clay Settling Ponds - Florida Industrial and Phosphate ...

This clay is referred to as phosphatic clay. A typical Florida phosphate mining operation pumps more than 100,000 gallons of water carrying tiny particles of clay every minute. This slurry is from 3% – 5% solids when it is pumped to a pond.

STATE-OF-THE-ART OF PHOSPHATIC CLAY DEWATERING

review of past and present phosphatic clay dewatering research, putting into perspective the wide range of research approaches pursued by industry, government, academia, and private researchers.

US5435893A - Process for the dewatering of phosphate ...

While the process of the dewatering of slime using an electro-sedimentation process is not necessarily well understood from a chemical standpoint, it appears that the electrical current flowing through the phosphate slime destroys the bond between the clay particles and the water and, thus, results in the solid clay particles sinking and the ...

Well point dewatering of phosphatic clays (Book, 1989 ...

Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

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

A Novel Technique for Water Recovery and Land Reclamation

FIPR/DIPR process, phosphatic clay is treated with a flocculant (at about a pound per ton of clay) and 5% waste paper pulp followed by dewatering on an inclined screen.

Electrokinetic Dewatering System that Effectively Removes ...

An Applied Low Voltage Electrical Field Enhances the Rate of Clay Dewatering, Hastening Clay Settling Pond Land Reclamation . Continuous operation of this electrokinetic dewatering system removes water from phosphatic clay suspensions, thereby achieving clay cake solid contents approaching 25 percent more rapidly than other methods.

Semi-Continuous Electrokinetic Dewatering of Phosphatic ...

A semi-continuous electrokinetic dewatering process, representing an intermediate step in development of a technology for continuous electrokinetic dewatering of phosphatic clay suspensions, was designed and evaluated through measurement of supernatant turbidity, pH, and changes in solids content.

ELECTROKINETIC DEWATERING OF PHOSPHATIC CLAY SUSPENSIONS ...

Oct 01, 2015· 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.

NIOSHTIC-2 Publications Search - 10003997 - Bureau of ...

The Bureau of Mines has developed a dewatering technique for phosphatic clay waste. The technique consists of treating the clay waste with a flocculant such as polyethylene oxide and dewatering the resulting flocs on a mechanical device such as a rotary screen.

Progress in the Development of Prototypes for Phosphatic ...

A dilute 2-3 wt.% suspension of phosphatic clay is produced as a waste stream in the beneficiation of phosphate ore. A typical Florida phosphate mining operation produces more than 100,000 gallons/min of phosphatic clay.

Dewatering method and agent - Florida Institute of ...

Nov 16, 1993· A method of dewatering mineral-containing phosphatic clay sludge comprising adding to the sludge (a) an aqueous solution or emulsion of acrylamide polymer flocculating agent and (b) a microfiber additive.

Phosphatic-Clay - Uses, Mining, Technology, Process ...

The phosphatic clay resource is a by-product of phosphate mining in central Florida. This resource currently occupies approximately 100,000 acres. The clay in the ponds came out of the ground as part of the matrix, which naturally contains the radioactive elements uranium and radium.

NIOSHTIC-2 Publications Search - 10003864 - A review of ...

They include the Estech sand-clay mix process using the enviro-clear thickener, sand-clay sandwiching, dredge mix, dredge process, and the sand-spray process. Developing technology for dewatering phosphatic clays also is described, including the Bureau of Mines rotary trommel method and the Gardinier process.

Conference Papers « Honaker Web Site

Tao, D., Fan, M., and Honaker, R., "Pilot-scale study of deep cone thickener for phosphatic clay dewatering", in Proceedings of XXV International Mineral ... P., "Laboratory Studies on Flocculation of Phosphatic Clay and Sand/Clay Mixture as a Forerunner to Phosphate Tailings Disposal using the Deep Cone Paste Technology – Part I ...

Sand-Clay Mix in Phosphate Mine Reclamation ...

Using conventional clay settling areas (CSAs) is the dominant method of storing phosphatic clay in Florida phosphate mining operations; however, their characteristics present many …