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EFFECT OF MOLECULAR OXYGEN ON THE ACTIVATED CARBON ADSORPTION OF NATURAL ORGANIC MATTER IN OHIO RIVER WATER
Citation:
Warta, C. L., S. P. Papadimas, G. A. Sorial, M. T. Suidan, AND T F. Speth*. EFFECT OF MOLECULAR OXYGEN ON THE ACTIVATED CARBON ADSORPTION OF NATURAL ORGANIC MATTER IN OHIO RIVER WATER. WATER RESEARCH. Elsevier Ltd, Oxford, Uk, 29(2):551-562, (1995).
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Description:
Recently published data show that the adsorptive capacity of granular activated carbon for phenois increases significantly in the presence of molecular oxygen (Vidic, Suidan,Traegner and Nakhla, 1990). in this study, the effect of molecular oxygen on the adsorptive capacity of activated carbon for the natural organic matter present in Ohio River water was investigate. This source of natural organic matter was selected because it is a natural surface watere and represents Cincinnati's main drinking water supply. Isotherm studies using pulverized activated carbon wewre conducted during the first week of each month of the year 1992. Adsorption isotherms were conducted on wateer from two stages of treatment (raw water directly pumped from the Ohio River and settled watere from the California Drinking Water Treatment Plant, Cincinnati, Ohio). Investigations were conducted in the presence and absence of molecular oxygen. An appreciable increase in the adsorptiove capacity of activated carbon for natural organic matter was noticed when molecular oxygen was present in the test environment. The adsorption isotherms wqere further described by fractionating the unknown matrxi into a non adsorbale fraction and four fictive components of different adsorabilitics.
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EFFECT OF MOLECULAR OXYGEN ON THE ACTIVATED CARBON ADSORPTION OF NATURAL ORGANIC MATTER IN OHIO RIVER WATER