Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/21868
Title: Ozonation process and water disintection
Authors: Nguyen, Hoang Nghi
Le, Cao Cuong
Tran, Vinh Dieu
Tu Ngu
Doan, Thi Yen Oanh
Keywords: Ozone
Oxidant
Disinfectant
ORP (oxidation-reduce potential)
Time-dependent ORP
Total coliform
Issue Date: 2018
Series/Report no.: Vietnam Journal of Chemistry;No 56(06) .- Page.717-720
Abstract: As commonly known, ozone is a highly effective disinfectant for both aqueous and gaseous media. It works through oxidation. Dissolved ozone causes the increases of the redox potential ORP of water. During the ozonenation process, the time-dependent redox potential ORP of water depends strongly on the density of microbes in it. By analyzing the time-dependent redox potential, it is possible to measure and calculate the parameters such as the oxidizing rate, the maximal redox potential ORPmax etc. of the ozonated water. These parameters of water reflect the microbiological pollution level of water. Ozonated water having a certain ORP level obtains disinfecting ability. Bacteriological analysis of the water samples after ozonation show that total coliform and E. coli bacteria were fully removed after a few minutes at ORP of 800 mV.
URI: http://dspace.ctu.edu.vn/jspui/handle/123456789/21868
ISSN: 2525-2321
Appears in Collections:Vietnam Journal of Chemistry

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