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Evaluating fluorescence and ultraviolet photometry to assess dissolved organic matter removal during coagulation–flocculation
Author(s) -
Droh Lanciné Gone,
Bamory Kamagate,
Raymond Ligban,
Issiaka Savane,
Jean Biemi
Publication year - 2011
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.2011.00253.x
Subject(s) - dissolved organic carbon , chemistry , ultraviolet , flocculation , coagulation , fluorescence , analytical chemistry (journal) , environmental chemistry , materials science , psychology , physics , optoelectronics , organic chemistry , quantum mechanics , psychiatry
Ultraviolet absorption at 254 nm (UV 254 ) and peaks (A, C and T) fluorescence intensities were evaluated to assess dissolved organic carbon (DOC) removal during coagulation–flocculation. The consistency of fluorescence data was checked to ensure that no inner filter effect, quenching or enhanced intensities affected the data. The decreases in UV 254 and peak intensities were calculated in percentage terms between raw and clarified water and compared with measured DOC removal. The results indicate that peak A, peak C, peak T and UV 254 exhibit strong linear relationships ( R 2 : 0.91, 0.89, 0.92 and 0.99, respectively) with DOC removal, implying that these parameters are useful indicators of DOC removal.