To collect fundamental data for the improvement of drinking water quality, focusing on the removal of 2-MIB, Geosmin, IPMP, IBMP and TCA, a total of 20m3/d pilot plant was operated with process schemes of GAC with post-O3(PP-I), and without ozonation(PP-II). Five taste and odor causing substances could be removed to non-detectable concentration with PP-I, but GAC alone was not so effective as PP-I. The larger the EBCT and Iodine Number of GAC column employed, the higher the removal efficiencies expected. The minimum EBCT and Iodine Number were respectively 15 min and 1,000 mg/g of GAC column. Geosmin removal efficiencies ranged 30 to 40% at 15.6 ng/l during conventional process scheme, but 70 to 80% removal was achieved by the PP-I and 60 to 70% by PP-II was achieved. IPMP removal efficiencies were 60 to 80% with GAC only. IBMP and TCA were seldom detected in raw water samples, but TCA was the most difficult to remove of five taste and odor causing substances.
Research Article|April 01 1997
Treatment of taste and odor causing substances in drinking water
Chai S. Gee
Water Sci Technol (1997) 35 (8): 29-36.
Youngsug Kim, Yeongho Lee, Chai S. Gee, Euiso Choi; Treatment of taste and odor causing substances in drinking water. Water Sci Technol 1 April 1997; 35 (8): 29–36. doi: https://doi.org/10.2166/wst.1997.0294
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