Acing the Test in Alaska

Membrane filtration systems provide Alaskan schools with quality water

About The Author: 

Article contributed by Aquious – PCI Membrane Systems, Inc., Milford, Ohio. For more information, contact David Pearson, general manager of Aquious – PCI Membrane Systems, Inc. at 513. 575.3500 or Scott Collins, marketing communications, at 216.382.8840, or visit www.pcimem.com.

Activation Date: 
November 1, 2006
Issue Reference: 
Legacy
Legacy ID: 
17480

Meeting Potable Water Demands

Nanofiltration produces sparkling clean water for Swedish resort community

About The Author: 

Article contributed by the Dow Chemical Co. Additional information is available at 800.447.4369, or at www.dowwatersolutions.com.

Activation Date: 
October 30, 2006
Legacy
Legacy ID: 
17410

ETV Testing Verifies Membrane Filtration Plant Treats Surface Water, Meets D/DBP Rule

A study published as part of the EPA's Environmental Technology Verification (ETV) Program verifies the performance of a Fyne Process membrane filtration plant tested on high organic-laden surface water in Barrow, Ark. The plant was able to remove significant levels of organics--precursors to disinfection byproducts such as trihalomethanes (THM) and haloacetic acids (HAA)--producing water that easily met the disinfection byproduct standards set by the EPA's stringent Stage 1 D/DBP Rule.

About The Author: 

PCI Membrane Systems offers complete water treatment packages including containerized plants, and also can provide remote monitoring of system performance. In addition to tubular membranes for liquids containing suspended or colloidal materials, PCI also supplies spiral-wound or hollow fiber membranes for clean solutions and ceramic membranes for high chemical compatibility and thermal resistance.

Activation Date: 
November 27, 2002
Files: 
Legacy
Legacy ID: 
13439

Membranes: Fouling & Cleaning

Membrane technology offers the possibility of managing total water resources. The spiral wound membrane element configuration is the most widely used due to its high packing density and relatively low price. This article will describe some technological advances in the area of innovative new membranes and application concepts for spiral wound membrane elements.

About The Author: 

Bjarne Nicolaisen is vice president of business development for the crossflow membrane business at Osmonics, Inc.

Activation Date: 
April 25, 2002
Issue Reference: 
Legacy
Legacy ID: 
13065

Project Compares Brackish Water Desalination Technologies – Part 2

Part one of this article appeared in the February issue and described how nanofiltration, reverse osmosis and electrodialysis reversal are being run side-by-side at the Brackish Water Demonstration Facility in California.

One Year Performance Comparisons

About The Author: 

Jim Passanisi is with the City of Port Hueneme, Calif., Janet Persechino is with Ionics, Inc., Watertown, Mass., and Todd K. Reynolds is with Kennedy/Jenks Consultants, San Francisco, Calif.

Publication Date: 
March 5, 2002
Activation Date: 
March 5, 2002
Legacy
Legacy ID: 
12989

Project Compares Brackish Water Desalination Technologies - Part 1

In Port Hueneme, California, a state-of-the-art desalination facility uses three brackish water desalination technologies: reverse osmosis (RO), nanofiltration (NF) and electrodialysis reversal (EDR), operated side-by-side to produce over three million gallons per day (mgd) of high quality drinking water. The Brackish Water Reclamation Demonstration Facility (BWRDF) is the cornerstone of the Port Hueneme Water Agency’s (PHWA) Water Quality Improvement Program. In addition to providing desalted water for local use, the BWRDF also serves as a full-scale research and demonstration facility.

About The Author: 

Jim Passanisi is with the City of Port Hueneme, Calif., Janet Persechino is with Ionics, Inc., Watertown, Mass., and Todd K. Reynolds, is with Kennedy/Jenks Consultants.

Activation Date: 
February 4, 2002
Legacy
Legacy ID: 
12913

Slowsand - Nanofiltration in Small Drinking Water Systems

The patented combination of slowsand with nanofiltration offers benefits that merit considerable discussion. This combination successfully was piloted by the University of Arizona beginning in 1987.

About The Author: 

Dr. Brent Cluff is owner and president of Clean Water Products. Clean Water Products is a company in Tucson, Ariz., available to help facilitate the use of slowsand/nanofiltration systems anywhere in the world. For additonal information, call 520-293-1561; www.cleanwaterproducts.com.

Activation Date: 
January 1, 2002
Legacy
Legacy ID: 
12834

Nanofiltration Membranes

Nanofiltration is a liquid separation membrane technology positioned between reverse osmosis (RO) and ultrafiltration.

Deck: 

Water Needs, Unique Research Arrangement Lead to Membrane Development

About The Author: 

Harold Nicoll is senior marketing communications manager for The Dow Chemical Co.

Activation Date: 
January 1, 2001
Files: 
Legacy
Legacy ID: 
11938

In-Home Systems: Utilizing RO and NF Elements

Innovations in membrane technology, which has been used in major industries and hospitals, are driving the industry into the home.

Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11862

The Challenge of Membrane Maintenance

The membrane processing technologies of microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) are widely used to separate suspended and dissolved materials from water solutions in numerous industrial, medical and drinking water applications.

About The Author: 

Peter Cartwright is the owner of Cartwright Consulting Co., an engineering firm specializing in water and wastewater treatment technologies. He also is a partner in Cartwright, Olsen & Associates, a firm that provides consulting services to the Environmental Protection Agency and other agencies relating to drinking water treatment technologies. Cartwright has presented more than 100 papers, lectures worldwide and has written numerous articles and book chapters. He is the author of two patents and he wrote "Water Purification" in the May 1999, "Practical Guide to Water Treatment" issue of Ashrae Journal

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11567
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