PERFORMANCE EVALUATION OF CERAMIC FILTER CANDLES

被引：12

作者：

CHAUDHURI, M

VERMA, SR

GUPTA, A

机构：

[1] Dept. of Civ. Engrg., Indian Inst. of Technol., Kanpur

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE | 1994年 / 120卷 / 06期

关键词：

D O I：

10.1061/(ASCE)0733-9372(1994)120:6(1646)

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The performance of two ceramic filter candles and one silver-impregnated ceramic filter candle with a layer of activated carbon, randomly selected from those available in the Indian commercial market, were evaluated employing the Escherichia coli and poliovirus challenge tests and a long-duration filtration test mimicking the home treatment of water. None of the candles appeared reliable as microbiological water purifiers. The study indicated that specifications/standards should require filter candles to retain suspended particles down to a size of 1 mu m to ensure at least a bacteriologically safe filtrate. Additional disinfection or boiling must be practiced during suspected outbreaks of waterborne viral diseases.

引用

页码：1646 / 1651

页数：6