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

页码：439 / 443

页数：5

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