A New Family of Resins   Water Quality Products April 2008   By Don Downey
Improving operations with shallow-shell resins
PDF Version

Positives & Negatives   Water Quality Products November 2007   By Frank DeSilva
Ion exchange for removal of groundwater contaminants

Radium Removal   Water Quality Products September 2007   By Frank DeSilva
Acid cation resin in sodium form can be used to remove radium from water
PDF Version

Ion Exchange—A Workhorse for Drinking Water Treatment   Water Quality Products May 2007   By Francis Boodoo
Ion exchange resins offer effective contaminant removal, an economical choice and good DBP control

Ion Exchange Resins   Water Quality Products April 2007   By Carl Galletti
What you need to know to develop an effective ion exchange system for industrial wastewater treatment

Benefiting from a Lead/Lag Configuration   Water Quality Products December 2006   By Frank DeSilva
Simple technique provides safety and economic advantages for POU/POE systems

Going the Extra Mile for Quality   Bottled Water Market September 2006   Francis Boodoo
Contaminant removal using customized ion exchange resin technology

Resin Regeneration Fundamentals   Water Quality Products April 2006   By Frank DeSilva
Regeneration procedures and guidelines for softeners and two-bed deionizers

Supercharged POE Systems—Sales Gimmick or Great Benefit?   Water Quality Products March 2006   By Jerry Horner
The pros and cons of adding various filter media to softening resin

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.

Basic POE System Maintenance   Water Quality Products October 2005   By Jerry Horner
Resin can have good appearance and texture, yet be fouled to the point of uselessness.

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

Resin Regeneration - More than Meets the Eye   Water Quality Products April 2005   By Frank DeSilva and Carl Galletti
Frequently there are inconsistencies between the effectiveness of two regenerations even though the same procedure was followed.
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

Ion Exchange Resins and Processes for Industrial Water Treatment   Water Quality Products July 2003   Wayne E. Bernahl, W. Bernahl Enterprises, Ltd.
Let's take a closer look at the technology and operation of ion exchange resins and processes used today in industrial water treatment systems.

Good Housekeeping in the Portable Exchange Regeneration Plant   Water Quality Products April 2002   Frank DeSilva, ResinTech, Inc.DeSilva, ResinTech, Inc
As a portable exchange business grows, new accounts may include users of ultrapure water. (Ultrapure water generally refers to water with a resistivity greater than 15 megohm.) These users may require documentation and procedures that the dealer may not be accustomed to providing. This article will describe some of the requirements that many high tech customers may ask their supplier of ultrapure water to provide.
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

Why Shouldn’t We Rebed This Ion Exchange Unit?   Water Quality Products February 2001   William J. Koebel, ResinTech, Inc.
When approaching a rebed of an ion exchange unit it is important to determine if it is the best course of action, how you will remove the resin from the vessel and your plan to load the new resin.
PDF Version

Just the Facts: Knowing Strong Base Anion Resin Types   Water Quality Products June 2000   Carl J. Galletti
Deciding which type of strong base anion (SBA) resin to use in a deioinizing application does not have to be a guessing game. The following article reviews chemical property differences that exist in SBA resin and how these differences affect resin performance.

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.

Tannin Removal   Water Quality Products February 1999   Mike Keller
Tannin removal is an application that some dealers have felt uncomfortable tackling.

What To Do When Resin Contains Dirt   Water Quality Products February 1999
Softener resin can trap suspended particles of dirt, clay or biological growths.

Silica Fouling of a Weakly Basic Anion Resin   Water Quality Products April 1998