Desalination in America

On average there are 50 to 75 significant desalination projects per year in the United States with an average capacity of approximately 1 million gallons per day. The majority of these projects utilize membrane processes such as nanofiltration (NF) or reverse osmosis (RO).

Deck: 

Technology Update

About The Author: 

John B. Tonner is the vice president and senior consultant - BSME 1985 for Water Consultants International. He has more than 17years of water technology experience with particular emphasis on advanced water treatment analysis, desalination process, operational analysis and training. He may be reached at jtonner@WaterCI.com; www.WaterCI.com.

Activation Date: 
October 29, 2002
Files: 
Issue Reference: 
Legacy
Legacy ID: 
13402

Groundwater Crisis and Sustainable Agriculture in Northern China

Although China ranks sixth in the world in total water resources, there is a shortage. The average water resources per capita is 2,300 m3, making it only one fourth of the world average per capita, while the unit plantation area of water resources is only one half the world’s average value.

Deck: 

Groundwater resources throughout northern China are drying up at an astonishing rate.

About The Author: 

Zhang Guang-xin and Deng Wei are associate professors at Changchun Institute of Geography, the Chinese Academy of Sciences, Changchun, P.R. China.

Activation Date: 
April 2, 2002
Legacy
Legacy ID: 
13037

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

Production of High Purity Water From Seawater

The Diablo Canyon Power Plant at Avila Beach in California utilizes seawater for both cooling water and makeup water for steam generation. Ionics, Inc., Watertown, Mass., designed and built and now operates a complete water treatment system serving the high-purity water needs of this power plant. Over the past eight years, the seawater treatment section has demonstrated excellent long-term performance as a result of strong design, consistent maintenance and qualified operators.

Activation Date: 
February 26, 2002
Issue Reference: 
Legacy
Legacy ID: 
12975

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

Protecting Precious Water Sources

After a hurricane in the 1960s caused salt water from the Atlantic Ocean to seep into private wells-effectively destroying the drinking water-Kill Devil Hills in Dare County, N.C., took action. Today, four water treatment facilities provide safe, clean and healthy fresh water for residents and tourists.


Two technologies currently are used by Dare County for the treatment of water. The first is a conventional ion exchange method that softens well water. The second is a reverse osmosis (RO) procedure that desalts brackish groundwater from wells drilled down 300 to 400 feet.

Deck: 

Products at Work

Activation Date: 
December 27, 2001
Legacy
Legacy ID: 
12844

High-Tech Products: Instrumentation

Sensors and Analyzers Prove Instrumental in Preserving Civil War Sub: Recovered Submarine Requires Chloride Removal to Prevent Rust and Corrosion

About The Author: 

For further information regarding Rosemount Analytical, phone at 949-863-1181.

Activation Date: 
October 22, 2001
Legacy
Legacy ID: 
12715

Q&A: Polymeric Membrane Filtration

The following interview is with Robert Huehmer, who currently is process manager with USFilter?s (a Vivendi Water company) Memcor, Microfloc and General Filter products division, located in Timonium, Md.

Deck: 

The when, where and how treatment is applied.

About The Author: 

Wendi Hope King is editor of Water Quality Products magazine

Activation Date: 
October 12, 2001
Legacy
Legacy ID: 
12696

New Technology Desalinates Sea Water at 80 Percent Less Cost than Current Methods

Demand for a cheaper way to transform saltwater into fresh has spurred the development of a new technology by AquaSonics International, Inc., the Rapid Spray Distillation (RSD) process, that desalinates water at a fraction of the cost of current methods.

Deck: 

Products at Work

Activation Date: 
August 9, 2001
Files: 
Legacy
Legacy ID: 
12530

Using Horizontal Wells for Groundwater Remediation

 

Deck: 

At Work on Groundwater Treatment

Activation Date: 
April 23, 2001
Files: 
Legacy
Legacy ID: 
12338