Under the Sea

RO system effectively maintains Atlanta’s massive aquarium

About The Author: 

Trude Witham is senior technical writer for Siemens Water Technologies. Witham can be reached at 978.614.7198 or by e-mail at trude.witham@siemens.com.

Activation Date: 
January 28, 2009
Files: 
Issue Reference: 
Legacy
Legacy ID: 
20080

Improving Water Quality with RO

Biofiltration and reverse osmosis solve water treatment problems in Minnesota

About The Author: 

Craig R. Granlund is senior account manager for Dow Water Solutions. Granlund can be reached at 952.233.1445 or by e-mail at craig@dow.com.

Activation Date: 
October 24, 2008
Issue Reference: 
Legacy
Legacy ID: 
19757

Wound Around Membrane

Filament-wound fiberglass proves to be effective for membrane production

About The Author: 

Article contributed by McClean Anderson. Additional information is available at 715.355.3006, or by e-mail at sales@mccleananderson.com.

Activation Date: 
November 9, 2007
Files: 
Issue Reference: 
Legacy
Legacy ID: 
18654

Membrane Filtration & the LT2ESWTR

Overview of the regulatory framework for membrane filtration under the LT2ESWTR

About The Author: 

Brent Alspach is senior project engineer for Malcolm Pirnie, Inc. He can be reached at 760.602.3828, or by e-mail at balspach@pirnie.com.

Activation Date: 
July 2, 2007
Files: 
Issue Reference: 
Legacy
Legacy ID: 
18309

Extending the Life of Your Membranes

Prefiltration provides complete turnkey operation with low membrane maintenance requirements at an ethanol plant

About The Author: 

David Osgood is marketing specialist for Layne Christensen Co. He can be reached at 262.246.4646, or by e-mail at dosgood@laynechristensen.com.

Legacy
Legacy ID: 
17411

Membrane Filtration

As the nation’s population continues to grow, the associated use of chemical products and waste generation rises accordingly. As a result, an increasing variety of contaminants are regularly released into the nation’s water sources, eventually making their way into the drinking water supply.

Deck: 

‘Tapping’ into the residential water treatment market

About The Author: 

Renee Chu is research analyst for Frost & Sullivan’s Environmental Group. Her areas of specialization include soil and groundwater remediation technologies, contaminant hydrogeology and water quality assessment. Chu is conversant in other environmental sectors such as hazardous waste management, material recycling, as well as pesticide management. She can be contacted at 416.490.1832, or by e-mail at rchu@frost.com.

Activation Date: 
June 5, 2005
Files: 
Issue Reference: 
Legacy
Legacy ID: 
16160

Zero Waste: A Look at the Future of Reverse Osmosis

Most reverse osmosis systems waste as much as 20 gallons just to produce one gallon of product water. The new technology called "ZeroWaste" eliminates this problem by returning the concentrate water from the reverse osmosis system back to the home's plumbing, resulting in 100 percent efficiency.

About The Author: 

Josh Hanford is the national sales manager for Watts Industries. He is the manager of new product development and serves on the Water Quality Association's RO Task Force.

Publication Date: 
March 11, 2003
Activation Date: 
March 11, 2003
Files: 
Legacy
Legacy ID: 
13839

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

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

Ultraviolet Dechlorination Technology

At the Procter & Gamble manufacturing plant in Greensboro, N.C., an Aquionics ultraviolet (UV) dechlorination unit was installed before two banks of reverse osmosis (RO) membranes. Trials that ran soon after the UV system’s installation showed a dramatic reduction in the RO membrane wash frequency—down from an average of eight cleanings per month to only two per month.

Deck: 

Reverse Osmosis Membranes Maintenance Costs Reduced

About The Author: 

Aquionics offers more than 20 years experience in the manufacture, application and development of UV equipment for progressive, nonchemical disinfection and contamination control. For more information, call 800-925-0440; www.aquionics.com.

Activation Date: 
June 26, 2002
Issue Reference: 
Legacy
Legacy ID: 
13172