phosphatic clay dewatering

phosphatic clay dewatering

STATE-OF-THE-ART OF PHOSPHATIC CLAY DEWATERING

2014-12-2 · A Review of Phosphatic Clay Dewatering Research By Walter E. Pittman, 1 and John W. Sweeney 2 ABSTRACT The Florida phosphate industry currently produces more than 80 pct of the total U.S .supply of phosphate rock. The production of this critical mineral is accompanied by the generation of large quantities of dilute ...

A review of phosphatic clay dewatering research. - CDC

2021-11-12 · 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.

Well Point Dewatering of Phosphatic Clays

WELL POINT DEWATERING OF PHOSPHATIC CLAYS By C. W. Smith1 and J. T. McLendon2 ABSTRACT The U.S. Bureau of Mines conducted research to determine the effect of ground water control on the dewatering of phosphatic clay wastes. Two storage impoundments were constructed. One

Large-Scale Dewatering of Phosphatic Clay Waste From ...

LARGE.SCA LE DEWATERING OF PHOSPHATIC CLAY WASTE FROM NORTHERN FLORIDA By Annie G. Smelley 1 and B. J. Scheiner2 ABSTRACT The Bureau of Mines is testing a dewatering technique for phosphatic clay waste that will recover a portion of the watet lost using conven­ ti.onal waste disposal methods and produce solids suitable for land ...

DESIGN OF ELECTROLYTIC DEWATERING SYSTEMS FOR

2014-6-17 · design of electrolytic dewatering systems for phosphatic clay suspensions by james patrick mckinney a dissertation presented to the graduate school of the university of florida in partial fulfillment of the requirements for the degree of doctor of philosophy university of florida 2010.

Semi-Continuous Electrokinetic Dewatering of Phosphatic ...

2014-9-10 · 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. The influence of feed flow rate, electric field ...

Electrokinetic dewatering of phosphatic clay settling ...

2011-5-1 · 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. The observation that the electric field controls both the maximum solids ...

Clay Dewatering - Clay Flocculation - Settling - Thickening

2018-4-5 · This report is the result of a detailed review of phosphatic clay dewatering research by the FIPR, under Bureau memorandum of agreement 14-09-0070-954,

Efficient continuous electrokinetic dewatering of ...

2019-3-1 · In the dewatering unit, drag between the clay and electrodes was reduced by using two conveyor belts that sandwiched and transported the clay. A second design was a single-stage unit that performed the dewatering in one operation. 2.1. Phosphatic clay. The phosphatic clay was collected from the Mosaic Company Four Corners Mine.

Phosphatic waste clay: Origin, composition ...

2021-3-1 · When dispersed in an aqueous media, the clay minerals exhibit a low dewatering rate due to the formation of porous structures by inherently charged clay layers in which a large amount of water is retained (Kotlyar et al., 1998, Morris and Żbik, 2009). The Florida phosphate industry, as an example, currently produces more than 80% of the total ...

STATE-OF-THE-ART OF PHOSPHATIC CLAY DEWATERING

2014-12-2 · A Review of Phosphatic Clay Dewatering Research By Walter E. Pittman, 1 and John W. Sweeney 2 ABSTRACT The Florida phosphate industry currently produces more than 80 pct of the total U.S .supply of phosphate rock. The production of this critical mineral is accompanied by the generation of large quantities of dilute ...

A review of phosphatic clay dewatering research. - CDC

2021-11-12 · 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.

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

2021-11-12 · The Bureau of Mines has tested a dewatering technique for phosphatic clay waste. The technique utilizes a flocculant polyethylene oxide (peo), that forms strong, stable flocs that can be dewatered on a static screen followed by further dewatering on a rotary screen or trommel. In field tests conducted in central Florida, clay wastes containing approximately 4 pct solids have been

Large-Scale Dewatering of Phosphatic Clay Waste From

LARGE.SCALE DEWATERING OF PHOSPHATIC CLAY WASTE FROM POLK COUNTY, FL By D. R. Brooks, 1 B. J. Scheiner, 2 A. G. Smelley, 3 and J. R. Boyle, Jr.4 02 ABSTRACT The Bureau of Mines has tested a dewatering technique for phosphatic

Dewatering of Phosphatic Clay Waste by Flocculation ...

2000-5-1 · 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.

State-of-the-Art of Phosphatic Clay Dewatering and ...

State-of-the-Art of Phosphatic Clay Dewatering and Disposal Techniques. Volume 2 A Technical Evaluation of Conventional Versus Developing Processes of Phosphatic Clay Disposal 02-017-022Final. Abstract. The proper disposition of phosphatic clays is a problem which has been the subject of research and debated for years by phosphate producers ...

Flocculation Dewatering of Florida Phosphatic Clay Wastes ...

The colloidal properties of the phosphatic clay suspensions, called slimes, make them difficult to dewater and dispose of without impoundment storage aboveground. Various reagents to flocculate and dewater these plant wastes were evaluated, and a polyethylene oxide polymer was found to function in a specialized flocculation dewatering technique.

Electrokinetic dewatering of phosphatic clay settling ...

2011-5-1 · 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. The observation that the electric field controls both the maximum solids ...

US5262064A - Dewatering method and agent - Google

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. By using this method, such mineral-containing sludges can be quickly dewatered into a cake comprising 25-35% solids which can then be further processed to a 60% solids-containing material.

Dewatering of industrial clay wastes (Technical Report ...

Coal-clay waste was consolidated from 3.6 to 57%; potash-clay brine slurry was consolidated from 3.8 to 35%; phosphatic clay waste from 15.6 to 49%; uranium tailings from 15.4 to 67%; tailings from talc production from 9.7 to 53%; and an acidic TiO/sub 2/ slurr slurry from 1.68 to 30%.

A review of phosphatic clay dewatering research. - CDC

2021-11-12 · 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.

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

2021-11-12 · The Bureau of Mines has tested a dewatering technique for phosphatic clay waste. The technique utilizes a flocculant polyethylene oxide (peo), that forms strong, stable flocs that can be dewatered on a static screen followed by further dewatering on a rotary screen or trommel. In field tests conducted in central Florida, clay wastes containing approximately 4 pct solids have been

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

2021-10-18 · "The Bureau of Mines has tested a dewatering technique for phosphatic clay waste. The technique utilizes a flocculant polyethylene oxide (peo), that forms strong, stable flocs that can be dewatered on a static screen followed by further dewatering on a rotary screen or trommel.

Dewatering of Phosphatic Clay Waste by Flocculation ...

2000-5-1 · 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.

Electrokinetic dewatering of phosphatic clay settling ...

2011-5-1 · 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. The observation that the electric field controls both the maximum solids ...

Design of Electrolytic Dewatering Systems for Phosphatic ...

2021-2-16 · Phosphatic clays arise as a waste product of the Florida phosphate mining industry. The clays exist initially as a 2-6 solids weight percent slurry which is pumped to large impoundment areas for natural settling. The clay settling process takes as long as 25 years to reach a value of 40wt% solids.

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

Additional Physical Format: Online version: Smith, C.W. (Carl W.). Well point dewatering of phosphatic clays. Washington, D.C. : U.S. Dept. of the Interior, Bureau of ...

Development and Evaluation of a Rapid Clay-Dewatering ...

Since its inception, the Florida Institute of Phosphate Research (FIPR) has been pursuing an economical, practical, and environmentally-sound technique for dewatering phosphatic clays. In-house research has shown that when small amounts of fibrous materials and flocculant are mixed with a phosphatic clay slurry, very rapid dewatering of the ...

(PDF) A Novel Technique for Water Recovery and Land ...

A dewatering technique for phosphatic clay waste utilizes polyethylene oxide (PEO) that forms strong, stable flocs that can be dewatered on a static screen followed by further dewatering on a ...

Development of Fully‐Continuous Electrokinetic

2018-10-26 · It addresses the need for enhanced separation of phosphatic clay suspensions generate... Development of Fully‐Continuous Electrokinetic Dewatering of Phosphatic Clay Suspensions - Kong - 2018 - Advances in Electrochemical Sciences and Engineering - Wiley Online Library