Disinfection of Escherichia coli bacteria using hybrid method of ozonation and hydrodynamic cavitation with orifice plate

Eva Fathul Karamah, Rioneli Ghaudenson, Fitri Amalia, Setijo Bismo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

This research aims to evaluate the performance of hybrid method of ozonation and hydrodynamic cavitation with orifice plate on E.coli bacteria disinfection. In this research, ozone dose, circulation flowrate, and disinfection method were varied. Ozone was produced by commercial ozonator with ozone dose of 64.83 mg/hour, 108.18 mg/hour, and 135.04 mg/hour. Meanwhile, hydrodynamic cavitation was generated by an orifice plate. The disinfection method compared in this research were: hydrodynamic cavitation, ozonation, and the combination of both. The best result on each method was achieved on the 60th minutes and with a circulation flowrate of 7 L/min. The hybrid method attained final concentration of 0 CFU/mL from the initial concentration of 2.10 × 105 CFU/mL. The ozonation method attained final concentration of 0 CFU/mL from the initial concentration of 1.32 × 105 CFU/mL. Cavitation method gives the least disinfection with final concentration of 5.20 × 104 CFU/mL from the initial concentration of 2.17 × 105 CFU/mL. In conclusion, hybrid method gives a faster and better disinfection of E.coli than each method on its own.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Applied Chemistry 2017
EditorsSilvester Tursiloadi, Nino Rinaldi
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415942
DOIs
Publication statusPublished - 27 Nov 2017
Event3rd International Symposium on Applied Chemistry 2017, ISAC 2017 - Jakarta, Indonesia
Duration: 23 Oct 201724 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1904
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Applied Chemistry 2017, ISAC 2017
CountryIndonesia
CityJakarta
Period23/10/1724/10/17

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