Evaluating Layered Upflow Carbon Adsorption for the Removal of Trace Organic Contaminants
- 1 March 1990
- journal article
- research article
- Published by Wiley in Journal AWWA
- Vol. 82 (3) , 63-76
- https://doi.org/10.1002/j.1551-8833.1990.tb06937.x
Abstract
The primary objective of this investigation was to compare layered upflow carbon adsorption (LUCA) with conventional fixed‐bed adsorbers for removing chlorinated hydrocarbons from drinking water sources. During LUCA operation, the granular activated carbon (GAC) is added in thin layers, with a new layer being added whenever the maximum allowed effluent concentration of the contaminants is reached. Thus, the time of exposure of the GAC to dissolved organic carbon, which is known to reduce GAC's adsorption capacity for organic contaminants, is reduced. This mode of operation was found to produce approximately 50 percent longer operating times and correspondingly higher throughputs.Keywords
This publication has 18 references indexed in Scilit:
- Rate of Humic Substance Uptake During Activated Carbon AdsorptionJournal of Environmental Engineering, 1987
- Kinetics of Adsorption on Activated Carbon: II Multisolute SystemsJournal of Environmental Engineering, 1987
- Kinetics of Adsorption on Activated Carbon: I. Single‐Solute SystemsJournal of Environmental Engineering, 1987
- Effects of solute concentration and cosolvents on the aqueous activity coefficient of halogenated hydrocarbonsEnvironmental Science & Technology, 1986
- Prediction of multicomponent adsorption equilibria using ideal adsorbed solution theoryEnvironmental Science & Technology, 1985
- Evaluating two-resistance models for air stripping of volatile organic contaminants in a countercurrent, packed columnEnvironmental Science & Technology, 1985
- Prediction of multicomponent adsorption equilibria in background mixtures of unknown compositionWater Research, 1985
- Simplified Models for Design of Fixed‐Bed Adsorption SystemsJournal of Environmental Engineering, 1984
- Isothermal effectiveness factor—II: Analytical expression for single reaction with arbitrary kinetics, geometry and activity distributionChemical Engineering Science, 1981
- Thermodynamics of multi‐solute adsorption from dilute liquid solutionsAIChE Journal, 1972