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Ozone Treatment of Dye Waste

Eric H. Snider and John J. Porter
Journal (Water Pollution Control Federation)
Vol. 46, No. 5 (May, 1974), pp. 886-894
Stable URL: http://www.jstor.org/stable/25038731
Page Count: 9
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Ozone Treatment of Dye Waste
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Abstract

Ozone was used in a series of experiments to determine its ability to degrade textile dye wastes. Dye wastes were analyzed for chemical oxygen demand, color, total solids, volatile solids, and dissolved solids before and after they were treated with ozone at three pH levels. In general, ozone reduced the chemical oxygen demand, but the percentage of reduction varied from 8 to 55 percent depending on the nature of the dye waste. Ozone dramatically reduced the color of the dye wastes, but measurements were affected by high turbidity. As a treatment process, it seems that the best use of ozone in treating dye wastes is as a final polishing step following conventional treatment.

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