The Effect of Temperature on the Destruction of Salmonellas in Activated Sludge

Yaziz, Mohammad Ismail (1985) The Effect of Temperature on the Destruction of Salmonellas in Activated Sludge. Pertanika, 8 (3). pp. 343-346.

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Abstract

The effect of temperature on the survival of salmonellas in activated sludge was examined. The results showed that the Salmonella destruction rates increased in line with increasing temperature of the mixed liquor from 5° to 25°C, whereas at 30°C the rate declined markedly. This is most probably due to inactivation of ciliate protozoa at the higher temperature resulting in increased survival of the pathogens. The slow reduction in the number of salmonellas at 30°C may be the result of nutrient starvation, in addition to other possible mechanisms such as the lytic action of bacterial viruses.

Item Type:Article
Keyword:Activated sludge, Salmonella, temperature effects of waste water treatment
Faculty or Institute:Faculty of Environmental Studies
ID Code:2566
Deposited By: Nur Izzati Mohd Zaki
Deposited On:16 Nov 2009 02:46
Last Modified:27 May 2013 07:01

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