Comparison and validation of UV dose calculations for low- and medium-pressure mercury arc lamps

被引：10
|
作者：
Wright, HB [1 ]
机构：
[1] Trojan Technol Inc, Dept Res & Dev, London, ON N5V 4T7, Canada
来源：
WATER ENVIRONMENT RESEARCH | 2000年 / 72卷 / 04期
关键词：
UV disinfection; germicidal dose; medium pressure; wastewater; collimated beam;
D O I：
10.2175/106143000X137978
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A method for calculating UV dose for microbial disinfection that includes a measure of the wavelength-dependent factors of UV lamp output, quartz sleeve UV transmission, microbial action spectra, and wastewater UV transmission is presented. The method is validated by comparing UV dose-response curves for the disinfection of a secondary effluent achieved using collimated beams of UV light generated from low- and medium-pressure mercury arc lamps. The wastewater UV transmittance is artificially altered as part of the validation process. A simplified and practical method of UV dose calculation that relies only on a measure of the UV transmission at 254 nm is proposed for the disinfection of domestic wastewaters by medium-pressure lamps. The proposed method is validated using wastewater samples obtained from 21 wastewater treatment plants located across North America.
引用
收藏
页码：439 / 443
页数：5
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