Resin Regeneration Fundamentals
Water Quality Products
April 2006
By Frank DeSilva
Regeneration procedures and guidelines for softeners and two-bed deionizers
Resin Sterilization
Water Quality Products
March 2006
By Frank DeSilva
Effective methods for cleaning biologically fouled resin
Chromate
Water Quality Products
December 2005
Frank DeSilva
The Boomsnub site in the state of Washington was listed as a Superfund site in 1995. The site consists of two parcels of land, which previously contained two unrelated businesses that contributed separately to contamination of soil and groundwater.
Uranium Removal by Ion Exchange
Water Quality Products
May 2005
By Frank DeSilva
Higher pH solutions, through the addition or use of alkalis such as sodium hydroxide, sodium bicarbonate or sodium carbonate, will result in severely decreased uranium regeneration
PDF Version
Perchlorate Removal
Water Quality Products
March 2005
By Frank DeSilva
The dissolution of ammonium, magnesium, potassium, or sodium salts into the groundwater pose a threat to drinking water supplies.
PDF Version
Protecting a Beverage Brand
Water Quality Products
June 2004
By Daryl Gisch, Ph.D., The Dow Chemical Co.
No matter how loyal your customers are to your brand, it only takes one bad experience for them to switch to another.
PDF Version
Controlling Mechanisms of Contaminant Ion Leakage in Condensate Polishing Systems
Water Quality Products
September 2001
Stephen W. Najmy, The Dow Chemical Co.
Extracting the maximum benefit from condensate polishing systems continues to be a top priority among many electric utility plants. With cost reduction pressures and increasing water quality standards, owners and operators continue to evaluate the resin handling procedures that affect corrosion product transport and contaminant ion impurity levels.
PDF Version
Improving the Quality of Deionizers
Water Quality Products
March 2000
Jim Sabzali and C.F. Chubb Michaud
Though both the cation and the anion resin are responsible for the quality of a deionization (DI) system effluent, it is the cation resin that is the big contributor to leakage.
Guidelines for Cation Resin Replacement
Water Quality Products
September 1999
Francis J. DeSilva
This article discusses strong acid cation resin typically used in water softeners or as the first unit in a two-bed cation-anion demineralizer.
PDF Version
Tannin Removal
Water Quality Products
February 1999
Mike Keller
Tannin removal is an application that some dealers have felt uncomfortable tackling.
PDF Version
|