Activated carbon is an excellent adsorbent due to its large surface area and the fact that the diverse surfaces can take on many different types of contaminants.
Broad spectrum removal filter media—overview
Various authors have studied the use of activated carbon and for the most part have concluded activated carbon is not a cost-effective solution. However, these authors have failed to realize the limitations of carbon validation methods or the fact that not all carbons are alike, especially when chemical reactions control the process.
In the last two decades, the price of activated carbon (AC) has fallen 75 percent. Many lower cost varieties have sufficient quality to be useful in many applications. The price reduction, along with maintaining reasonable quality, has created changes in the industry. This article describes how those potentially influence the direction of the industry.
Drinking water treatment professionals have long held fast to the belief that granular activated carbon (GAC) based on bituminous coal provides the best performance for their demanding application. That’s why, when an article in 1999 cited evidence that a lignite-based GAC outperformed a bituminous-based carbon, industry experts were surprised and more than a bit skeptical.
Fresno Discovers Big Difference Between Reagglomerated Carbon and Direct Activated Carbons
challenges are emerging in the industry that require new methods and product
developments. This article discusses additional test methods for the AC
ASTM, AWWA and EPA Standard Methods and New Test Methods for AC
Like an international cookbook, the attendees of the Ninth Annual International Activated Carbon Conference (IACC) from around the world contributed to a recipe for a successful future for the activated carbon industry. Speakers brought their new ideas and on-going practices together. This annual conference had guests from all over the United States, Canada, Australia, Sri Lanka, Indonesia, Mexico, South Africa and India. The conference connects buyers, sellers and users of activated carbon and related materials and services.
Summary of the 9th Annual International Activated Carbon Conference
Carbon block is used in a wide variety of applications and performs a wider range of filtration tasks than other products. How carbon block is engineered will determine its use.
The 8th Annual International Activated Carbon Conference (IACC-8) and optional training courses took place on Sept. 18—23. This article provides a brief review of some of the activities and summaries of the speakers’ topics.
New liquid phase-based processes to regenerate spent AC have been conducted. Two liquid processes, competitive adsorbate displacement and supercritical fluid (SCF) regeneration, will be discussed.