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Evaluating Layered Upflow Carbon Adsorption for the Removal of Trace Organic Contaminants
Author(s) -
Munz Christoph,
Walther JeanLouis,
Baldauf Günther,
Boller Markus,
Bland Ralph
Publication year - 1990
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1990.tb06937.x
Subject(s) - adsorption , effluent , total organic carbon , contamination , environmental chemistry , activated carbon , carbon fibers , chemistry , environmental science , environmental engineering , materials science , organic chemistry , ecology , composite number , composite material , biology
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.