Ozone Disinfection of Industrial-Municipal Secondary Effluents

A pilot study of ozonation of industrial-municipal secondary effluent has demonstrated that ozone can be used successfully as an alternative to chlorination for rapid disinfection and concurrent tertiary treatment. Ozone at a dosage of 15 mg/l was contacted with the effluent in a chamber baffled to...

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Bibliographic Details
Published in:Journal - Water Pollution Control Federation 1973-12, Vol.45 (12), p.2493-2507
Main Authors: Nebel, Carl, Gottschling, Ronald D., Hutchison, Richard L., McBride, Thomas J., Taylor, Dean M., Pavoni, Joseph L., Tittlebaum, Marty E., Spencer, Hugh E., Fleischman, Marvin
Format: Article
Language:English
Subjects:
Chlorine
Disinfection
Fecal coliforms
Industrial effluents
Kentucky
Oxygen
Ozone
Pilot plants
Sewage
Sewage effluent
Viruses
Wastewater treatment
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Summary:A pilot study of ozonation of industrial-municipal secondary effluent has demonstrated that ozone can be used successfully as an alternative to chlorination for rapid disinfection and concurrent tertiary treatment. Ozone at a dosage of 15 mg/l was contacted with the effluent in a chamber baffled to provide an over-and-under flow path. Fecal coliforms were reduced to 103/100 ml, and total coliforms and fecal streptococci to 500 and 9/100 ml, respectively. The viruses not destroyed by secondary treatment were rapidly eliminated by ozonation. The process improved other effluent quality parameters (oxygen demand, turbidity, and color) by direct oxidation, and flotation. The ozonated effluent is nontoxic and high in dissolved oxygen, and resembles potable water in appearance.
ISSN:0043-1303
2327-7467