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  Preliminary Trials Completed Using VSEP Vibratory Membrane Filtration for Treatment of Acidic Wastewater from Phosphate Ore Processing

November 21, 2005


The Florida Institute for Phosphate Research (FIPR) awarded a research grant to New Logic Research, Inc., of Emeryville, California to study the use of its reverse osmosis membranes for treatment of acidic process water stored in large ponds known as phosphogypsum stacks. The pilot trials were recently completed at an active phosphate plant in Bartow, Florida and the results prove the patented VSEP Vibrating Membrane Filtration System efficiently filters the wastewater, producing filtrate suitable for surface water discharge.

The typical phosphogysum stack covers 600 acres and contains billions of gallons of very low pH wastewater made up of hazardous and even radioactive substances that cannot be discharged without treatment. Treating this volume of water with traditional methods requires very large quantities of lime and creates even larger quantities of residual sludge that also must be disposed of.

An active phosphate pond contains about 5% dissolved solids. After VSEP reverse osmosis filtration, the effluent contains less than 0.005% dissolved solids—water clean enough to meet stringent Florida Department of Environmental Protection standards for surface water discharge. And unlike traditional lime treatment, VSEP treatment does not create large volumes of sludge, which creates additional cost and handling issues.

New Logic Research CEO Greg Johnson states that “Conventional reverse osmosis membranes with pretreatment have been used for many years for seawater desalination. However, these systems have limited functionality when used for other wastewaters containing high levels of scale forming minerals. VSEP, a vibrating membrane system which employs torsional oscillation of the membrane media, is capable of filtering these difficult wastewaters as a standalone system without any pretreatment or added process complexity.”

For more information concerning the research project visit FIPR’s Web site:

http://www1.fipr.state.fl.us/fipr/fipr1.nsf/0/75E0FB515C0AB6A585256F8E007125D2?OpenDocument


About New Logic Research, Inc.

Headquartered in Emeryville, California, New Logic Research is the leading provider of high-performance membrane filtration systems used in a wide variety of applications from pure water and wastewater treatment to chemical process clarifications. Founded in 1987, New Logic provides industrial membrane filtration systems for most major chemical manufacturers around the World. New Logic provides a breadth of products and services including membrane systems, chemical cleaning products, engineering, and process development services for wastewater treatment, chemical processing, power plants, pulp and paper, oil and gas production, pigments, and electronics industries. Find out more on the Web at http://www.vsep.com

 
 
New Logic Research, Inc. | 5040 Commercial Circle, Suite A, Concord, CA 94520 | Phone: 510-655-7305 | Email: info@vsep.com
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