Author(s): ZHENG Zhong-hua, LIN Xiao-chang, ZHU Song-ming, HE Jin-song, CAO Yong-mei, YE Zhang-ying, College of Biosystems Engineering and Food Science, Zhejiang University, College of Food Science and Technology, Yunnan Agricultural University, Want Want China
Pages: 312-314+317
Year: 2016 Issue:  4
Journal: Chinese Journal of Disinfection
Keyword:  slightly acidic electrolyzed water; atomization; bactericidal effect; indoor air disinfection;
Abstract: Objective The bactericidal efficacy of atomized slightly acidic electrolyzed water( SAEW) was investigated so as to provide a scientific foundation for future practical application.Methods The suspension quantitative bactericidal test and field trial of air disinfection test were carried out to determine the bactericidal efficacy.Results The result of suspension quantitative bactericidal test showed that the average killing log values of Escherichia coli in suspension exposed to atomized SAEW for 5 min were from 2.0 to 2.48,when the initial available chlorine concentration( ACC) of SAEW was between 10 mg / L to 30 mg / L.In the field trial of air disinfection test,the bactericidal efficacy of atomized SAEW was significant after 120 min operation.The degradation rate of air bacteria was over 90% in airtight space.Conclusion In an airtight environment,the atomized SAEW has effective disinfection effect on air bacteria.