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The Influence of Background Organic Matter on GAC Adsorption
Author(s) -
Summers R. Scott,
Haist Brigitte,
Koehler Johannes,
Ritz Jurgen,
Zimmer Gerhard,
Sontheimer Heinrich
Publication year - 1989
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.1551-8833.1989.tb03207.x
Subject(s) - adsorption , chemistry , organic matter , activated carbon , breakthrough curve , biodegradation , water treatment , environmental chemistry , chromatography , dissolved organic carbon , environmental engineering , environmental science , organic chemistry
Background organic matter in the Rhine River significantly affected the behavior of trichloroethene (TCE) and 1,2,4‐trichlorobenzene (TCB) in granular activated carbon (GAC) columns. The GAC column adsorption capacity for TCE was found to be more than 50 percent less than that found in batch adsorption experiments. The capacity for TCE of GAC preloaded with organic matter was found to be very similar to that of a TCE‐spiked GAC column, suggesting that the preloading isotherm approach can be useful in predicting GAC column capacity. Because of long‐term reductions in adsorption capacity, the breakthrough of TCE in a full‐scale column is not well predicted by the direct scaleup approach. Complete removal of TCB, presumably by biodegradation, was found after 40 days of operation.