INACTIVATION OF ESCHERICHIA-COLI BY ULTRAVIOLET-LIGHT AND HYDROGEN-PEROXIDE IN A THIN-FILM CONTACTOR

被引:5
|
作者
SHAMA, G
机构
[1] A Department of Chemical Engineering, Loughborough University of Technology, Loughborough, Leicestershire
关键词
D O I
10.1111/j.1472-765X.1992.tb00778.x
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Apparatus for irradiating enclosed thin liquid films with ultraviolet (u.v.) light (lambda = 253.7 nm) in combination with hydrogen peroxide was used to inactivate Escherichia coli in water. Hydrogen peroxide concentrations of 2.5, 5.0 and 10.0 g/l were used and in each case synergistic inactivation was observed. At the highest concentration, a fractional survival of 1.3 x 10(-3) was obtained after 20 min; this was decreased to 3.1 x 10(-6) by simultaneous u.v. irradiation.
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页码:259 / 260
页数:2
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