Disinfection Study with ClO2 for Recycling Demijohns in Drinking Water Industry

The disinfection of recycling polymer based demijohns using in drinking water industry was targeted by using chlorine dioxide containing solutions. 1.5 L volume polyethylene terephthalate bottle was chosen as container to characterize the polymeric demijohn. Disinfection of the intentionally contami...

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Bibliographic Details
Published in:Journal of water chemistry and technology 2018-03, Vol.40 (2), p.116-120
Main Authors: Bolat, M., Hos, A., Yildiz, S. Z., Tunc, K.
Format: Article
Language:English
Subjects:
Aquatic Pollution
Bacteria
Chlorine
Chlorine dioxide
Concentration gradient
Containers
Disinfection
Disinfection & disinfectants
Drinking water
E coli
Earth and Environmental Science
Environment
Industrial Chemistry/Chemical Engineering
Membrane filtration
Natural Water
Polyethylene
Polyethylene terephthalate
Polymers
Solutions
Washing
Waste Water Technology
Water Industry/Water Technologies
Water Management
Water Pollution Control
Water Quality/Water Pollution
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Summary:The disinfection of recycling polymer based demijohns using in drinking water industry was targeted by using chlorine dioxide containing solutions. 1.5 L volume polyethylene terephthalate bottle was chosen as container to characterize the polymeric demijohn. Disinfection of the intentionally contaminated containers was performed with the 0.3–2 ppm range ClO 2 containing washing solutions which were prepared from the stock solution. Active matter concentration, washing time and the washing number were studied in gradient. Disinfection efficacy of ClO 2 on Escherichia coli ATCC 25922 and Enterococcus faecalis ATCC 29212 was investigated. The bacteria were chosen according to “Implementing Regulation on Water Intended for Human Consumption”. Viable bacterial cell was enumerated by membrane filtration method. The results were established as colony forming unit. The increasing of the concentration decreased the washing time is another determined result.
ISSN:1063-455X
1934-936X
DOI:10.3103/S1063455X18020108