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.

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.

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

Membrane Applications in Water Plants

Faced with upgrading aging facilities, a Florida water utility decided to incorporate reverse osmosis.

Deck: 

System Profile

About The Author: 

Ian Lisk is Editorial Director of Water Engineering & Management and Water & Wastes Digest. Significant input to this article was provided by staff at Metcalf & Eddy's Sunrise, Florida office, and at the City of Plantation, Florida.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10221