Study on the effects of two germicides on sterilizing for some bacteria in the cycling hot water heating of pipeline, Taiyuan
化学杀菌剂对太原集中供热水体中有害菌群杀灭作用研究

Siderocapsa sp.,Desulfovibrio sp., Corynebacterium sp., Micrococcus sp., Staphylococcus sp., Bacillus sp. and Acinetobacter sp. separated from the cycling hot water heating of pipeline in Taiyuan were sterilized by using glutaraldehyde (GL) and dodecylbenzyldi methyammonium chloride (DBMAC) indoor, respectively. The results indicated that: (1) the effect of GL and DBMAC concentration at each level on sterilizing 7 bacterial has significant difference, and the mortality of 7 bacterial increase on linear while the germicides concentration increase. (2) GL concentration for sterilizing the bacterial at 100mg/L is better, whereas DBMAC concentration for sterilizing Desulfovibrio sp. and Siderocapsa sp. at 100mg/L is better and the DBMAC concentration for the others at 120mg/L is suitable. (3) the germicide effect for bacterial of GL is better than that of DBMAC.