Determining activated carbon performance
Journal Article
·
· Pollution Engineering
OSTI ID:99393
This article discusses the key elements involved in evaluating a system`s performance. Empty bed contact time (EBCT) is a term used to describe the length of time a liquid stream being treated is in contact with a granular activated carbon bed. The EBCT is the time required for a fluid to pass through the volume equivalent of the media bed, without the media being present. In a bed of granular activated carbon, the void volume or space between particles is usually about 45 percent. Therefore, the EBCT is about twice the true or actual time of contact between the fluid being treated and the GAC particles. The EBCT plays an important role in determining the effectiveness and longevity of granular activated carbon (GAC) used to treat liquids in a fixed-bed adsorber. Factors that influence and are influenced by EBCT, and their relationship to GAC performance in a treatment scheme include: adsorption, mass transfer zone, impurity concentration, adsorption affinity, flow rate and system design considerations.
- OSTI ID:
- 99393
- Journal Information:
- Pollution Engineering, Journal Name: Pollution Engineering Journal Issue: 7 Vol. 27; ISSN PLENBW; ISSN 0032-3640
- Country of Publication:
- United States
- Language:
- English
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