The ABCs of Activated Carbon

Activated carbon (AC) is a common component in many water treatment devices. It removes a wide variety of organic-based contaminants, as well as some inorganic contaminants such as free chlorine and monochloramine. It is common to use AC ahead of reverse osmosis and ion exchange resins to prevent oxidation and organic fouling and to decrease maintenance frequency.  

Activated Carbon Properties

Deck: 

Activated carbon properties determine filtration performance

Publication Date: 
February 24, 2012
Activation Date: 
February 24, 2012
Company Reference: 
Issue Reference: 
Legacy
Legacy ID: 
23237

Carbon Filters

Company Reference: 
Spotlight Name Archive: 
Products
Legacy ID: 
61336
Spotlight Header Archive: 
December 2011

These carbon cartridges eliminate problems associated with loose carbon treatment. Standard cartridges measure 2 ¾ in. in diameter with lengths of 4 to 40 in. With flow rates reaching 2.5 gpm, cartridges are designed for use in either single- or multi-tubed vessels. Carbon styles include high-grade coconut carbon, carbon impregnated paper and wet-molded carbon block.

Carbon Filtration Basics

Six months ago I opened the refrigerator to pour myself a glass of water from my pour-through pitcher. As I was filling my glass, I realized I could not remember the last time I changed the carbon filter. I had been thinking about replacing the filter for a while—a really long while.

Deck: 

Determining when to change your activated carbon filter

Publication Date: 
November 4, 2011
Activation Date: 
November 4, 2011
Company Reference: 
Issue Reference: 
Legacy
Legacy ID: 
23123

Arsenic & Activated Carbon

In 1986, California voters approved an initiative to address growing concerns about exposure to toxic chemicals. That initiative became the Safe Drinking Water and Toxic Enforcement Act of 1986, better known Proposition (Prop) 65. The act requires the state to publish a list of chemicals known to cause cancer, birth defects or other reproductive harm. This list, which must be updated at least once a year, has grown to include approximately 800 chemicals since it was first published in 1987.

Aiming for Arsenic

Deck: 

Preemptive testing can prevent costly penalties in California

Publication Date: 
September 22, 2011
Activation Date: 
September 22, 2011
Company Reference: 
Issue Reference: 
Legacy
Legacy ID: 
23038

The Silver Lining

The application of silver zeolites with carbon to achieve bacteriostatic effects in filtration products continues. Here Jeff Trigolo, chief technology officer with Sciessent, discusses with WQP Associate Editor Elizabeth Lisican their effectiveness, as well as the significance of certification for bacteriostatic claims.

Elizabeth Lisican: What are some of the latest trends you have been seeing in antimicrobial treatment technology?

Publication Date: 
June 1, 2011
Activation Date: 
June 1, 2011
Company Reference: 
Issue Reference: 
Legacy
Legacy ID: 
22817

Organic Contaminant Removal With Activated Carbon

Activated carbon is commonly used in point-of-use (POU) and point-of-entry (POE) water applications. Activated carbon is predominantly used to remove organic-based contaminants and inorganic contaminants like free chlorine and monochloramine from water. Other water treatment processes such as reverse osmosis or ion exchange are better suited for other inorganic chemicals that may be present in water.

Deck: 

Factors impacting contaminant removal

Publication Date: 
May 31, 2011
Activation Date: 
May 31, 2011
Company Reference: 
Issue Reference: 
Legacy
Legacy ID: 
22810

Granular Activated Carbon Not Working?

Addressing air in the bed of dry GAC

About The Author: 

Wayne Schuliger, P.E., is technical director for PACS Inc., and can be reached at [email protected]. Henry Nowicki, PhD./M.B.A., is president of PACS and Activated Carbon Services and be reached at [email protected]. H. George Nowicki, B.S., is laboratory manager and business developer for PACS and can be reached at [email protected]. Barbara Sherman, N.S., is manager of operations for PACS and can be reached at [email protected].

Activation Date: 
September 24, 2010
Legacy
Legacy ID: 
22181

Activated Carbon: The Next Generation

Innovations in surface-modified activated carbon reveal waves of the future

Activation Date: 
March 25, 2010
Issue Reference: 
Legacy
Legacy ID: 
21557
Email Subscriptions