A Rapid, Safe Drinking Water Supply Production Method.
Abstract
The electrolytic generation of ozone and chlorine-hypochlorite (and perhaps free radicals) in weak electrolyte to kill microorganisms has been investigated. A dilute NaCI solution was passed between noval platinum electrode plates which carried plates which carried a current of 5-25 volts and 2-8 amps. The amount of ozone generated in the anode stream was found to be directly related to the applied voltage and to the electrolyte concentration. The prototype unit developed for these experiments is capable of electrolyzing 1 liters/min of water on a continuous basis. One volume of electrolyzed solution (produced at 10 volts, 3.5 amps) sterilized and deodorized 40 volumes of surface stream water contaminated with raw sewage. Conservative estimates are that 18,000 liters (4,800 gallons) of water contaminated with microorganisms could be sterilized in an 8-hour day using 0.035 kw. The unit is compact (20 cube) and portable, with a pump as the only moving part. The unit generates ozone directly in water at ambient temperatures rather than by using oxygen, an air supply, or hazardous chemicals such as chlorine gas. Such a system could replace chlorination as a more rapid and thorough secondary treatment process.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 24, 1982
- Accession Number
- ADA125219
Entities
People
- Ann M. Pendergrass
- Helen F. Gram
- I. J. Wilk
- Martin E. Muller