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Removal of Toxic Chemicals from Water with Activated Carbon
Author(s) -
Dawson Verdel K.,
Marking Leif L.,
Bills Terry D.
Publication year - 1976
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1976)105<119:rotcfw>2.0.co;2
Subject(s) - chemistry , activated carbon , adsorption , carbon fibers , resorcinol , environmental chemistry , chromatography , nuclear chemistry , organic chemistry , materials science , composite number , composite material
Activated carbon was effective in removing fish toxicants and anesthetics from water solutions. Its capacity to adsorb 3‐trifluoromethyl‐4‐nitrophenol (TFM), antimycin, Noxfish (R) (5% rotenone), Dibrom (R) , juglone, MS‐222, and benzocaine ranged from 0.1 to 64 mg per gram of carbon. The adsorptive capacity (end point considered as a significant discharge) of activated carbon for removal of TFM was determined at column depths of 15, 30, and 60 cm; temperatures of 7, 12, 17, and 22 C; pHˈs of 6.5, 7.5, 8.5, and 9.5; and flow rates of 50, 78, 100, 200, and 940 ml/min. Adsorptive capacity increased when the contact time was increased by reducing the flow rate or increasing the column depth. The adsorptive capacity was not significantly influenced by temperature but was substantially higher at pH 6.5 than at the other pHˈs tested. A practical and efficient filter for purifying chemically treated water was developed.