Performance Evaluation of Ceramic Filter Candles
Publication: Journal of Environmental Engineering
Volume 120, Issue 6
Abstract
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 μm to ensure at least a bacteriologically safe filtrate. Additional disinfection or boiling must be practiced during suspected outbreaks of waterborne viral diseases.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 120 • Issue 6 • November 1994
Pages: 1646 - 1651
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jan 15, 1993
Published online: Nov 1, 1994
Published in print: Nov 1994
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